Measurement of open beauty production in photoproduction at HERA

J. Breitweg, S. Chekanov, M. Derrick, D. Krakauer, S. Magill, B. Musgrave, A. Pellegrino, J. Repond, R. Stanek, R. Yoshida, M. C K Mattingly, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, L. Cifarelli & 368 others F. Cindolo, A. Contin, M. Corradi, S. de Pasquale, P. Giusti, G. Iacobucci, G. Levi, A. Margotti, T. Massam, R. Nania, F. Palmonari, A. Pesci, G. Sartorelli, A. Zichichi, G. Aghuzumtsyan, C. Amelung, I. Brock, K. Coböken, S. Goers, H. Hartmann, K. Heinloth, E. Hilger, P. Irrgang, H. P. Jakob, A. Kappes, U. F. Katz, R. Kerger, O. Kind, E. Paul, J. Rautenberg, H. Schnurbusch, A. Stifutkin, J. Tandler, K. C. Voss, A. Weber, H. Wieber, D. S. Bailey, O. Barret, N. H. Brook, J. E. Cole, B. Foster, G. P. Heath, H. F. Heath, S. Robins, E. Rodrigues, J. Scott, R. J. Tapper, M. Capua, A. Mastroberardino, M. Schioppa, G. Susinno, H. Y. Jeoung, J. Y. Kim, J. H. Lee, I. T. Lim, K. J. Ma, M. Y. Pac, A. Caldwell, W. Liu, X. Liu, B. Mellado, S. Paganis, S. Sampson, W. B. Schmidke, F. Sciulli, J. Chwastowski, A. Eskreys, J. Figiel, K. Klimek, K. Olkiewicz, K. Piotrzkowski, M. B. Przybycień, P. Stopa, L. Zawiejski, B. Bednarek, K. Jeleń, D. Kisielewska, A. M. Kowal, T. Kowalski, M. Przybycień, E. Rulikowska-Zarebska, L. Suszycki, D. Szuba, A. Kotanński, L. A T Bauerdick, U. Behrens, J. K. Bienlein, K. Borras, V. Chiochia, J. Crittenden, D. Dannheim, K. Desler, G. Drews, A. Fox-Murphy, U. Fricke, F. Goebel, P. Göttlicher, R. Graciani, T. Haas, W. Hain, G. F. Hartner, K. Hebbel, S. Hillert, W. Koch, U. Kötz, H. Kowalski, H. Labes, B. Löhr, R. Mankel, J. Martens, M. Martínez, M. Milite, M. Moritz, D. Notz, M. C. Petrucci, A. Polini, M. Rohde, A. A. Savin, U. Schneekloth, F. Selonke, M. Sievers, S. Stonjek, G. Wolf, U. Wollmer, C. Youngman, W. Zeuner, C. Coldewey, A. Lopez-Duran Viani, A. Meyer, S. Schlenstedt, P. B. Straub, G. Barbagli, E. Gallo, A. Parenti, P. G. Pelfer, A. Bamberger, A. Benen, N. Coppola, S. Eisenhardt, P. Markun, H. Raach, S. Wölfle, P. J. Bussey, M. Bell, A. T. Doyle, C. Glasman, S. W. Lee, A. Lupi, N. Macdonald, G. J. McCance, D. H. Saxon, L. E. Sinclair, I. O. Skillicorn, R. Waugh, B. Bodmann, N. Gendner, U. Holm, H. Salehi, K. Wick, A. Yildirim, T. Carli, A. Garfagnini, A. Geiser, I. Gialas, D. Kçira, R. Klanner, E. Lohrmann, R. Gonçalo, K. R. Long, D. B. Miller, A. D. Tapper, R. Walker, P. Cloth, D. Filges, T. Ishii, M. Kuze, K. Nagano, K. Tokushuku, S. Yamada, Y. Yamazaki, A. N. Barakbaev, E. G. Boos, N. S. Pokrovskiy, B. O. Zhautykov, S. H. Ahn, S. B. Lee, Sung Keun Park, H. Lim, D. Son, F. Barreiro, G. García, O. González, L. Labarga, J. del Peso, I. Redondo, J. Terrón, M. Vázquez, M. Barbi, F. Corriveau, S. Padhi, D. G. Stairs, M. Wing, T. Tsurugai, A. Antonov, V. Bashkirov, M. Danilov, B. A. Dolgoshein, D. Gladkov, V. Sosnovtsev, S. Suchkov, R. K. Dementiev, P. F. Ermolov, Y. A. Golubkov, I. I. Katkov, L. A. Khein, N. A. Korotkova, I. A. Korzhavina, V. A. Kuzmin, O. Y. Lukina, A. S. Proskuryakov, L. M. Shcheglova, A. N. Solomin, N. N. Vlasov, S. A. Zotkin, C. Bokel, M. Botje, N. Brümmer, J. Engelen, S. Grijpink, E. Koffeman, P. Kooijman, S. Schagen, A. van Sighem, E. Tassi, H. Tiecke, N. Tuning, J. J. Velthuis, J. Vossebeld, L. Wiggers, E. de Wolf, B. Bylsma, L. S. Durkin, J. Gilmore, C. M. Ginsburg, C. L. Kim, T. Y. Ling, S. Boogert, A. M. Cooper-Sarkar, R. C E Devenish, J. Grobe-Knetter, T. Matsushita, O. Ruske, M. R. Sutton, R. Walczak, A. Bertolin, R. Brugnera, R. Carlin, F. Dal Corso, S. Dusini, S. Limentani, A. Longhin, M. Posocco, L. Stanco, M. Turcato, L. Adamczyk, L. Iannotti, B. Y. Oh, J. R. Okrasiński, P. R B Saull, W. S. Toothacker, J. J. Whitmore, Y. Iga, G. D'Agostini, G. Marini, A. Nigro, C. Cormack, J. C. Hart, N. A. McCubbin, T. P. Shah, D. Epperson, C. Heusch, H. F W Sadrozinski, A. Seiden, R. Wichmann, D. C. Williams, I. H. Park, N. Pavel, H. Abramowicz, S. Dagan, A. Gabareen, S. Kananov, A. Kreisel, A. Levy, T. Abe, T. Fusayasu, T. Kohno, K. Umemori, T. Yamashita, R. Hamatsu, T. Hirose, M. Inuzuka, S. Kitamura, K. Matsuzawa, T. Nishimura, M. Arneodo, N. Cartiglia, R. Cirio, M. Costa, M. I. Ferrero, S. Maselli, V. Monaco, C. Peroni, M. Ruspa, R. Sacchi, A. Solano, A. Staiano, D. C. Bailey, C. P. Fagerstroem, R. Galea, T. Koop, G. M. Levman, J. F. Martin, A. Mirea, A. Sabetfakhri, J. M. Butterworth, C. Gwenlan, M. E. Hayes, E. A. Heaphy, T. W. Jones, J. B. Lane, B. J. West, J. Ciborowski, R. Ciesielski, G. Grzelak, R. J. Nowak, J. M. Pawlak, R. Pawlak, B. Smalska, T. Tymieniecka, A. K. Wróblewski, J. A. Zakrzewski, A. F. Zarnecki, M. Adamus, T. Gadaj, O. Deppe, Y. Eisenberg, L. K. Gladilin, D. Hochman, U. Karshon, W. F. Badgett, D. Chapin, R. Cross, C. Foudas, S. Mattingly, D. D. Reeder, W. H. Smith, A. Vaiciulis, T. Wildschek, M. Wodarczyk, A. Deshpande, S. Dhawan, V. W. Hughes, S. Bhadra, C. D. Catterall, W. R. Frisken, R. Hall-Wilton, M. Khakzad, S. Menary

Research output: Contribution to journalArticle

85 Citations (Scopus)

Abstract

The production and semi-leptonic decay of heavy quarks have been studied in the photoproduction process e+p → e+ + dijet + e- + X with the ZEUS detector at HERA using an integrated luminosity of 38.5 pb-1. Events with photon-proton centre-of-mass energies, Wγp, between 134 and 269 GeV and a photon virtuality, Q2, less than 1 GeV2 were selected requiring at least two jets of transverse energy Ejet1(2) T > 7(6) GeV and an electron in the final state. The electrons were identified by employing the ionisation energy loss measurement. The contribution of beauty quarks was determined using the transverse momentum of the electron relative to the axis of the closest jet, prel T. The data, after background subtraction, were fit with a Monte Carlo simulation including beauty and charm decays. The measured beauty cross section was extrapolated to the parton level with the b quark restricted to the region of transverse momentum pb T > = 5 GeV and pseudorapidity |ηb| < 2. The extrapolated cross section is 1.6 ± 0.4 (stat.)+0.3 -0.5(syst.)+0.2 -0.4(ext.) nb. The result is compared to a perturbative QCD calculation performed to next-to-leading order.

Original languageEnglish
Pages (from-to)625-637
Number of pages13
JournalEuropean Physical Journal C
Volume18
Issue number4
Publication statusPublished - 2001 Dec 1

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photoproduction
quarks
transverse momentum
Electrons
Momentum
Photons
electrons
Ionization potential
cross sections
photons
decay
subtraction
partons
center of mass
Luminance
Energy dissipation
Protons
quantum chromodynamics
energy dissipation
luminosity

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Breitweg, J., Chekanov, S., Derrick, M., Krakauer, D., Magill, S., Musgrave, B., ... Menary, S. (2001). Measurement of open beauty production in photoproduction at HERA. European Physical Journal C, 18(4), 625-637.

Measurement of open beauty production in photoproduction at HERA. / Breitweg, J.; Chekanov, S.; Derrick, M.; Krakauer, D.; Magill, S.; Musgrave, B.; Pellegrino, A.; Repond, J.; Stanek, R.; Yoshida, R.; Mattingly, M. C K; Antonioli, P.; Bari, G.; Basile, M.; Bellagamba, L.; Boscherini, D.; Bruni, A.; Bruni, G.; Cara Romeo, G.; Cifarelli, L.; Cindolo, F.; Contin, A.; Corradi, M.; de Pasquale, S.; Giusti, P.; Iacobucci, G.; Levi, G.; Margotti, A.; Massam, T.; Nania, R.; Palmonari, F.; Pesci, A.; Sartorelli, G.; Zichichi, A.; Aghuzumtsyan, G.; Amelung, C.; Brock, I.; Coböken, K.; Goers, S.; Hartmann, H.; Heinloth, K.; Hilger, E.; Irrgang, P.; Jakob, H. P.; Kappes, A.; Katz, U. F.; Kerger, R.; Kind, O.; Paul, E.; Rautenberg, J.; Schnurbusch, H.; Stifutkin, A.; Tandler, J.; Voss, K. C.; Weber, A.; Wieber, H.; Bailey, D. S.; Barret, O.; Brook, N. H.; Cole, J. E.; Foster, B.; Heath, G. P.; Heath, H. F.; Robins, S.; Rodrigues, E.; Scott, J.; Tapper, R. J.; Capua, M.; Mastroberardino, A.; Schioppa, M.; Susinno, G.; Jeoung, H. Y.; Kim, J. Y.; Lee, J. H.; Lim, I. T.; Ma, K. J.; Pac, M. Y.; Caldwell, A.; Liu, W.; Liu, X.; Mellado, B.; Paganis, S.; Sampson, S.; Schmidke, W. B.; Sciulli, F.; Chwastowski, J.; Eskreys, A.; Figiel, J.; Klimek, K.; Olkiewicz, K.; Piotrzkowski, K.; Przybycień, M. B.; Stopa, P.; Zawiejski, L.; Bednarek, B.; Jeleń, K.; Kisielewska, D.; Kowal, A. M.; Kowalski, T.; Przybycień, M.; Rulikowska-Zarebska, E.; Suszycki, L.; Szuba, D.; Kotanński, A.; Bauerdick, L. A T; Behrens, U.; Bienlein, J. K.; Borras, K.; Chiochia, V.; Crittenden, J.; Dannheim, D.; Desler, K.; Drews, G.; Fox-Murphy, A.; Fricke, U.; Goebel, F.; Göttlicher, P.; Graciani, R.; Haas, T.; Hain, W.; Hartner, G. F.; Hebbel, K.; Hillert, S.; Koch, W.; Kötz, U.; Kowalski, H.; Labes, H.; Löhr, B.; Mankel, R.; Martens, J.; Martínez, M.; Milite, M.; Moritz, M.; Notz, D.; Petrucci, M. C.; Polini, A.; Rohde, M.; Savin, A. A.; Schneekloth, U.; Selonke, F.; Sievers, M.; Stonjek, S.; Wolf, G.; Wollmer, U.; Youngman, C.; Zeuner, W.; Coldewey, C.; Lopez-Duran Viani, A.; Meyer, A.; Schlenstedt, S.; Straub, P. B.; Barbagli, G.; Gallo, E.; Parenti, A.; Pelfer, P. G.; Bamberger, A.; Benen, A.; Coppola, N.; Eisenhardt, S.; Markun, P.; Raach, H.; Wölfle, S.; Bussey, P. J.; Bell, M.; Doyle, A. T.; Glasman, C.; Lee, S. W.; Lupi, A.; Macdonald, N.; McCance, G. J.; Saxon, D. H.; Sinclair, L. E.; Skillicorn, I. O.; Waugh, R.; Bodmann, B.; Gendner, N.; Holm, U.; Salehi, H.; Wick, K.; Yildirim, A.; Carli, T.; Garfagnini, A.; Geiser, A.; Gialas, I.; Kçira, D.; Klanner, R.; Lohrmann, E.; Gonçalo, R.; Long, K. R.; Miller, D. B.; Tapper, A. D.; Walker, R.; Cloth, P.; Filges, D.; Ishii, T.; Kuze, M.; Nagano, K.; Tokushuku, K.; Yamada, S.; Yamazaki, Y.; Barakbaev, A. N.; Boos, E. G.; Pokrovskiy, N. S.; Zhautykov, B. O.; Ahn, S. H.; Lee, S. B.; Park, Sung Keun; Lim, H.; Son, D.; Barreiro, F.; García, G.; González, O.; Labarga, L.; del Peso, J.; Redondo, I.; Terrón, J.; Vázquez, M.; Barbi, M.; Corriveau, F.; Padhi, S.; Stairs, D. G.; Wing, M.; Tsurugai, T.; Antonov, A.; Bashkirov, V.; Danilov, M.; Dolgoshein, B. A.; Gladkov, D.; Sosnovtsev, V.; Suchkov, S.; Dementiev, R. K.; Ermolov, P. F.; Golubkov, Y. A.; Katkov, I. I.; Khein, L. A.; Korotkova, N. A.; Korzhavina, I. A.; Kuzmin, V. A.; Lukina, O. Y.; Proskuryakov, A. S.; Shcheglova, L. M.; Solomin, A. N.; Vlasov, N. N.; Zotkin, S. A.; Bokel, C.; Botje, M.; Brümmer, N.; Engelen, J.; Grijpink, S.; Koffeman, E.; Kooijman, P.; Schagen, S.; van Sighem, A.; Tassi, E.; Tiecke, H.; Tuning, N.; Velthuis, J. J.; Vossebeld, J.; Wiggers, L.; de Wolf, E.; Bylsma, B.; Durkin, L. S.; Gilmore, J.; Ginsburg, C. M.; Kim, C. L.; Ling, T. Y.; Boogert, S.; Cooper-Sarkar, A. M.; Devenish, R. C E; Grobe-Knetter, J.; Matsushita, T.; Ruske, O.; Sutton, M. R.; Walczak, R.; Bertolin, A.; Brugnera, R.; Carlin, R.; Dal Corso, F.; Dusini, S.; Limentani, S.; Longhin, A.; Posocco, M.; Stanco, L.; Turcato, M.; Adamczyk, L.; Iannotti, L.; Oh, B. Y.; Okrasiński, J. R.; Saull, P. R B; Toothacker, W. S.; Whitmore, J. J.; Iga, Y.; D'Agostini, G.; Marini, G.; Nigro, A.; Cormack, C.; Hart, J. C.; McCubbin, N. A.; Shah, T. P.; Epperson, D.; Heusch, C.; Sadrozinski, H. F W; Seiden, A.; Wichmann, R.; Williams, D. C.; Park, I. H.; Pavel, N.; Abramowicz, H.; Dagan, S.; Gabareen, A.; Kananov, S.; Kreisel, A.; Levy, A.; Abe, T.; Fusayasu, T.; Kohno, T.; Umemori, K.; Yamashita, T.; Hamatsu, R.; Hirose, T.; Inuzuka, M.; Kitamura, S.; Matsuzawa, K.; Nishimura, T.; Arneodo, M.; Cartiglia, N.; Cirio, R.; Costa, M.; Ferrero, M. I.; Maselli, S.; Monaco, V.; Peroni, C.; Ruspa, M.; Sacchi, R.; Solano, A.; Staiano, A.; Bailey, D. C.; Fagerstroem, C. P.; Galea, R.; Koop, T.; Levman, G. M.; Martin, J. F.; Mirea, A.; Sabetfakhri, A.; Butterworth, J. M.; Gwenlan, C.; Hayes, M. E.; Heaphy, E. A.; Jones, T. W.; Lane, J. B.; West, B. J.; Ciborowski, J.; Ciesielski, R.; Grzelak, G.; Nowak, R. J.; Pawlak, J. M.; Pawlak, R.; Smalska, B.; Tymieniecka, T.; Wróblewski, A. K.; Zakrzewski, J. A.; Zarnecki, A. F.; Adamus, M.; Gadaj, T.; Deppe, O.; Eisenberg, Y.; Gladilin, L. K.; Hochman, D.; Karshon, U.; Badgett, W. F.; Chapin, D.; Cross, R.; Foudas, C.; Mattingly, S.; Reeder, D. D.; Smith, W. H.; Vaiciulis, A.; Wildschek, T.; Wodarczyk, M.; Deshpande, A.; Dhawan, S.; Hughes, V. W.; Bhadra, S.; Catterall, C. D.; Frisken, W. R.; Hall-Wilton, R.; Khakzad, M.; Menary, S.

In: European Physical Journal C, Vol. 18, No. 4, 01.12.2001, p. 625-637.

Research output: Contribution to journalArticle

Breitweg, J, Chekanov, S, Derrick, M, Krakauer, D, Magill, S, Musgrave, B, Pellegrino, A, Repond, J, Stanek, R, Yoshida, R, Mattingly, MCK, Antonioli, P, Bari, G, Basile, M, Bellagamba, L, Boscherini, D, Bruni, A, Bruni, G, Cara Romeo, G, Cifarelli, L, Cindolo, F, Contin, A, Corradi, M, de Pasquale, S, Giusti, P, Iacobucci, G, Levi, G, Margotti, A, Massam, T, Nania, R, Palmonari, F, Pesci, A, Sartorelli, G, Zichichi, A, Aghuzumtsyan, G, Amelung, C, Brock, I, Coböken, K, Goers, S, Hartmann, H, Heinloth, K, Hilger, E, Irrgang, P, Jakob, HP, Kappes, A, Katz, UF, Kerger, R, Kind, O, Paul, E, Rautenberg, J, Schnurbusch, H, Stifutkin, A, Tandler, J, Voss, KC, Weber, A, Wieber, H, Bailey, DS, Barret, O, Brook, NH, Cole, JE, Foster, B, Heath, GP, Heath, HF, Robins, S, Rodrigues, E, Scott, J, Tapper, RJ, Capua, M, Mastroberardino, A, Schioppa, M, Susinno, G, Jeoung, HY, Kim, JY, Lee, JH, Lim, IT, Ma, KJ, Pac, MY, Caldwell, A, Liu, W, Liu, X, Mellado, B, Paganis, S, Sampson, S, Schmidke, WB, Sciulli, F, Chwastowski, J, Eskreys, A, Figiel, J, Klimek, K, Olkiewicz, K, Piotrzkowski, K, Przybycień, MB, Stopa, P, Zawiejski, L, Bednarek, B, Jeleń, K, Kisielewska, D, Kowal, AM, Kowalski, T, Przybycień, M, Rulikowska-Zarebska, E, Suszycki, L, Szuba, D, Kotanński, A, Bauerdick, LAT, Behrens, U, Bienlein, JK, Borras, K, Chiochia, V, Crittenden, J, Dannheim, D, Desler, K, Drews, G, Fox-Murphy, A, Fricke, U, Goebel, F, Göttlicher, P, Graciani, R, Haas, T, Hain, W, Hartner, GF, Hebbel, K, Hillert, S, Koch, W, Kötz, U, Kowalski, H, Labes, H, Löhr, B, Mankel, R, Martens, J, Martínez, M, Milite, M, Moritz, M, Notz, D, Petrucci, MC, Polini, A, Rohde, M, Savin, AA, Schneekloth, U, Selonke, F, Sievers, M, Stonjek, S, Wolf, G, Wollmer, U, Youngman, C, Zeuner, W, Coldewey, C, Lopez-Duran Viani, A, Meyer, A, Schlenstedt, S, Straub, PB, Barbagli, G, Gallo, E, Parenti, A, Pelfer, PG, Bamberger, A, Benen, A, Coppola, N, Eisenhardt, S, Markun, P, Raach, H, Wölfle, S, Bussey, PJ, Bell, M, Doyle, AT, Glasman, C, Lee, SW, Lupi, A, Macdonald, N, McCance, GJ, Saxon, DH, Sinclair, LE, Skillicorn, IO, Waugh, R, Bodmann, B, Gendner, N, Holm, U, Salehi, H, Wick, K, Yildirim, A, Carli, T, Garfagnini, A, Geiser, A, Gialas, I, Kçira, D, Klanner, R, Lohrmann, E, Gonçalo, R, Long, KR, Miller, DB, Tapper, AD, Walker, R, Cloth, P, Filges, D, Ishii, T, Kuze, M, Nagano, K, Tokushuku, K, Yamada, S, Yamazaki, Y, Barakbaev, AN, Boos, EG, Pokrovskiy, NS, Zhautykov, BO, Ahn, SH, Lee, SB, Park, SK, Lim, H, Son, D, Barreiro, F, García, G, González, O, Labarga, L, del Peso, J, Redondo, I, Terrón, J, Vázquez, M, Barbi, M, Corriveau, F, Padhi, S, Stairs, DG, Wing, M, Tsurugai, T, Antonov, A, Bashkirov, V, Danilov, M, Dolgoshein, BA, Gladkov, D, Sosnovtsev, V, Suchkov, S, Dementiev, RK, Ermolov, PF, Golubkov, YA, Katkov, II, Khein, LA, Korotkova, NA, Korzhavina, IA, Kuzmin, VA, Lukina, OY, Proskuryakov, AS, Shcheglova, LM, Solomin, AN, Vlasov, NN, Zotkin, SA, Bokel, C, Botje, M, Brümmer, N, Engelen, J, Grijpink, S, Koffeman, E, Kooijman, P, Schagen, S, van Sighem, A, Tassi, E, Tiecke, H, Tuning, N, Velthuis, JJ, Vossebeld, J, Wiggers, L, de Wolf, E, Bylsma, B, Durkin, LS, Gilmore, J, Ginsburg, CM, Kim, CL, Ling, TY, Boogert, S, Cooper-Sarkar, AM, Devenish, RCE, Grobe-Knetter, J, Matsushita, T, Ruske, O, Sutton, MR, Walczak, R, Bertolin, A, Brugnera, R, Carlin, R, Dal Corso, F, Dusini, S, Limentani, S, Longhin, A, Posocco, M, Stanco, L, Turcato, M, Adamczyk, L, Iannotti, L, Oh, BY, Okrasiński, JR, Saull, PRB, Toothacker, WS, Whitmore, JJ, Iga, Y, D'Agostini, G, Marini, G, Nigro, A, Cormack, C, Hart, JC, McCubbin, NA, Shah, TP, Epperson, D, Heusch, C, Sadrozinski, HFW, Seiden, A, Wichmann, R, Williams, DC, Park, IH, Pavel, N, Abramowicz, H, Dagan, S, Gabareen, A, Kananov, S, Kreisel, A, Levy, A, Abe, T, Fusayasu, T, Kohno, T, Umemori, K, Yamashita, T, Hamatsu, R, Hirose, T, Inuzuka, M, Kitamura, S, Matsuzawa, K, Nishimura, T, Arneodo, M, Cartiglia, N, Cirio, R, Costa, M, Ferrero, MI, Maselli, S, Monaco, V, Peroni, C, Ruspa, M, Sacchi, R, Solano, A, Staiano, A, Bailey, DC, Fagerstroem, CP, Galea, R, Koop, T, Levman, GM, Martin, JF, Mirea, A, Sabetfakhri, A, Butterworth, JM, Gwenlan, C, Hayes, ME, Heaphy, EA, Jones, TW, Lane, JB, West, BJ, Ciborowski, J, Ciesielski, R, Grzelak, G, Nowak, RJ, Pawlak, JM, Pawlak, R, Smalska, B, Tymieniecka, T, Wróblewski, AK, Zakrzewski, JA, Zarnecki, AF, Adamus, M, Gadaj, T, Deppe, O, Eisenberg, Y, Gladilin, LK, Hochman, D, Karshon, U, Badgett, WF, Chapin, D, Cross, R, Foudas, C, Mattingly, S, Reeder, DD, Smith, WH, Vaiciulis, A, Wildschek, T, Wodarczyk, M, Deshpande, A, Dhawan, S, Hughes, VW, Bhadra, S, Catterall, CD, Frisken, WR, Hall-Wilton, R, Khakzad, M & Menary, S 2001, 'Measurement of open beauty production in photoproduction at HERA', European Physical Journal C, vol. 18, no. 4, pp. 625-637.
Breitweg J, Chekanov S, Derrick M, Krakauer D, Magill S, Musgrave B et al. Measurement of open beauty production in photoproduction at HERA. European Physical Journal C. 2001 Dec 1;18(4):625-637.
Breitweg, J. ; Chekanov, S. ; Derrick, M. ; Krakauer, D. ; Magill, S. ; Musgrave, B. ; Pellegrino, A. ; Repond, J. ; Stanek, R. ; Yoshida, R. ; Mattingly, M. C K ; Antonioli, P. ; Bari, G. ; Basile, M. ; Bellagamba, L. ; Boscherini, D. ; Bruni, A. ; Bruni, G. ; Cara Romeo, G. ; Cifarelli, L. ; Cindolo, F. ; Contin, A. ; Corradi, M. ; de Pasquale, S. ; Giusti, P. ; Iacobucci, G. ; Levi, G. ; Margotti, A. ; Massam, T. ; Nania, R. ; Palmonari, F. ; Pesci, A. ; Sartorelli, G. ; Zichichi, A. ; Aghuzumtsyan, G. ; Amelung, C. ; Brock, I. ; Coböken, K. ; Goers, S. ; Hartmann, H. ; Heinloth, K. ; Hilger, E. ; Irrgang, P. ; Jakob, H. P. ; Kappes, A. ; Katz, U. F. ; Kerger, R. ; Kind, O. ; Paul, E. ; Rautenberg, J. ; Schnurbusch, H. ; Stifutkin, A. ; Tandler, J. ; Voss, K. C. ; Weber, A. ; Wieber, H. ; Bailey, D. S. ; Barret, O. ; Brook, N. H. ; Cole, J. E. ; Foster, B. ; Heath, G. P. ; Heath, H. F. ; Robins, S. ; Rodrigues, E. ; Scott, J. ; Tapper, R. J. ; Capua, M. ; Mastroberardino, A. ; Schioppa, M. ; Susinno, G. ; Jeoung, H. Y. ; Kim, J. Y. ; Lee, J. H. ; Lim, I. T. ; Ma, K. J. ; Pac, M. Y. ; Caldwell, A. ; Liu, W. ; Liu, X. ; Mellado, B. ; Paganis, S. ; Sampson, S. ; Schmidke, W. B. ; Sciulli, F. ; Chwastowski, J. ; Eskreys, A. ; Figiel, J. ; Klimek, K. ; Olkiewicz, K. ; Piotrzkowski, K. ; Przybycień, M. B. ; Stopa, P. ; Zawiejski, L. ; Bednarek, B. ; Jeleń, K. ; Kisielewska, D. ; Kowal, A. M. ; Kowalski, T. ; Przybycień, M. ; Rulikowska-Zarebska, E. ; Suszycki, L. ; Szuba, D. ; Kotanński, A. ; Bauerdick, L. A T ; Behrens, U. ; Bienlein, J. K. ; Borras, K. ; Chiochia, V. ; Crittenden, J. ; Dannheim, D. ; Desler, K. ; Drews, G. ; Fox-Murphy, A. ; Fricke, U. ; Goebel, F. ; Göttlicher, P. ; Graciani, R. ; Haas, T. ; Hain, W. ; Hartner, G. F. ; Hebbel, K. ; Hillert, S. ; Koch, W. ; Kötz, U. ; Kowalski, H. ; Labes, H. ; Löhr, B. ; Mankel, R. ; Martens, J. ; Martínez, M. ; Milite, M. ; Moritz, M. ; Notz, D. ; Petrucci, M. C. ; Polini, A. ; Rohde, M. ; Savin, A. A. ; Schneekloth, U. ; Selonke, F. ; Sievers, M. ; Stonjek, S. ; Wolf, G. ; Wollmer, U. ; Youngman, C. ; Zeuner, W. ; Coldewey, C. ; Lopez-Duran Viani, A. ; Meyer, A. ; Schlenstedt, S. ; Straub, P. B. ; Barbagli, G. ; Gallo, E. ; Parenti, A. ; Pelfer, P. G. ; Bamberger, A. ; Benen, A. ; Coppola, N. ; Eisenhardt, S. ; Markun, P. ; Raach, H. ; Wölfle, S. ; Bussey, P. J. ; Bell, M. ; Doyle, A. T. ; Glasman, C. ; Lee, S. W. ; Lupi, A. ; Macdonald, N. ; McCance, G. J. ; Saxon, D. H. ; Sinclair, L. E. ; Skillicorn, I. O. ; Waugh, R. ; Bodmann, B. ; Gendner, N. ; Holm, U. ; Salehi, H. ; Wick, K. ; Yildirim, A. ; Carli, T. ; Garfagnini, A. ; Geiser, A. ; Gialas, I. ; Kçira, D. ; Klanner, R. ; Lohrmann, E. ; Gonçalo, R. ; Long, K. R. ; Miller, D. B. ; Tapper, A. D. ; Walker, R. ; Cloth, P. ; Filges, D. ; Ishii, T. ; Kuze, M. ; Nagano, K. ; Tokushuku, K. ; Yamada, S. ; Yamazaki, Y. ; Barakbaev, A. N. ; Boos, E. G. ; Pokrovskiy, N. S. ; Zhautykov, B. O. ; Ahn, S. H. ; Lee, S. B. ; Park, Sung Keun ; Lim, H. ; Son, D. ; Barreiro, F. ; García, G. ; González, O. ; Labarga, L. ; del Peso, J. ; Redondo, I. ; Terrón, J. ; Vázquez, M. ; Barbi, M. ; Corriveau, F. ; Padhi, S. ; Stairs, D. G. ; Wing, M. ; Tsurugai, T. ; Antonov, A. ; Bashkirov, V. ; Danilov, M. ; Dolgoshein, B. A. ; Gladkov, D. ; Sosnovtsev, V. ; Suchkov, S. ; Dementiev, R. K. ; Ermolov, P. F. ; Golubkov, Y. A. ; Katkov, I. I. ; Khein, L. A. ; Korotkova, N. A. ; Korzhavina, I. A. ; Kuzmin, V. A. ; Lukina, O. Y. ; Proskuryakov, A. S. ; Shcheglova, L. M. ; Solomin, A. N. ; Vlasov, N. N. ; Zotkin, S. A. ; Bokel, C. ; Botje, M. ; Brümmer, N. ; Engelen, J. ; Grijpink, S. ; Koffeman, E. ; Kooijman, P. ; Schagen, S. ; van Sighem, A. ; Tassi, E. ; Tiecke, H. ; Tuning, N. ; Velthuis, J. J. ; Vossebeld, J. ; Wiggers, L. ; de Wolf, E. ; Bylsma, B. ; Durkin, L. S. ; Gilmore, J. ; Ginsburg, C. M. ; Kim, C. L. ; Ling, T. Y. ; Boogert, S. ; Cooper-Sarkar, A. M. ; Devenish, R. C E ; Grobe-Knetter, J. ; Matsushita, T. ; Ruske, O. ; Sutton, M. R. ; Walczak, R. ; Bertolin, A. ; Brugnera, R. ; Carlin, R. ; Dal Corso, F. ; Dusini, S. ; Limentani, S. ; Longhin, A. ; Posocco, M. ; Stanco, L. ; Turcato, M. ; Adamczyk, L. ; Iannotti, L. ; Oh, B. Y. ; Okrasiński, J. R. ; Saull, P. R B ; Toothacker, W. S. ; Whitmore, J. J. ; Iga, Y. ; D'Agostini, G. ; Marini, G. ; Nigro, A. ; Cormack, C. ; Hart, J. C. ; McCubbin, N. A. ; Shah, T. P. ; Epperson, D. ; Heusch, C. ; Sadrozinski, H. F W ; Seiden, A. ; Wichmann, R. ; Williams, D. C. ; Park, I. H. ; Pavel, N. ; Abramowicz, H. ; Dagan, S. ; Gabareen, A. ; Kananov, S. ; Kreisel, A. ; Levy, A. ; Abe, T. ; Fusayasu, T. ; Kohno, T. ; Umemori, K. ; Yamashita, T. ; Hamatsu, R. ; Hirose, T. ; Inuzuka, M. ; Kitamura, S. ; Matsuzawa, K. ; Nishimura, T. ; Arneodo, M. ; Cartiglia, N. ; Cirio, R. ; Costa, M. ; Ferrero, M. I. ; Maselli, S. ; Monaco, V. ; Peroni, C. ; Ruspa, M. ; Sacchi, R. ; Solano, A. ; Staiano, A. ; Bailey, D. C. ; Fagerstroem, C. P. ; Galea, R. ; Koop, T. ; Levman, G. M. ; Martin, J. F. ; Mirea, A. ; Sabetfakhri, A. ; Butterworth, J. M. ; Gwenlan, C. ; Hayes, M. E. ; Heaphy, E. A. ; Jones, T. W. ; Lane, J. B. ; West, B. J. ; Ciborowski, J. ; Ciesielski, R. ; Grzelak, G. ; Nowak, R. J. ; Pawlak, J. M. ; Pawlak, R. ; Smalska, B. ; Tymieniecka, T. ; Wróblewski, A. K. ; Zakrzewski, J. A. ; Zarnecki, A. F. ; Adamus, M. ; Gadaj, T. ; Deppe, O. ; Eisenberg, Y. ; Gladilin, L. K. ; Hochman, D. ; Karshon, U. ; Badgett, W. F. ; Chapin, D. ; Cross, R. ; Foudas, C. ; Mattingly, S. ; Reeder, D. D. ; Smith, W. H. ; Vaiciulis, A. ; Wildschek, T. ; Wodarczyk, M. ; Deshpande, A. ; Dhawan, S. ; Hughes, V. W. ; Bhadra, S. ; Catterall, C. D. ; Frisken, W. R. ; Hall-Wilton, R. ; Khakzad, M. ; Menary, S. / Measurement of open beauty production in photoproduction at HERA. In: European Physical Journal C. 2001 ; Vol. 18, No. 4. pp. 625-637.
@article{c44a71f082bd4e7f825a3ec668dc3363,
title = "Measurement of open beauty production in photoproduction at HERA",
abstract = "The production and semi-leptonic decay of heavy quarks have been studied in the photoproduction process e+p → e+ + dijet + e- + X with the ZEUS detector at HERA using an integrated luminosity of 38.5 pb-1. Events with photon-proton centre-of-mass energies, Wγp, between 134 and 269 GeV and a photon virtuality, Q2, less than 1 GeV2 were selected requiring at least two jets of transverse energy Ejet1(2) T > 7(6) GeV and an electron in the final state. The electrons were identified by employing the ionisation energy loss measurement. The contribution of beauty quarks was determined using the transverse momentum of the electron relative to the axis of the closest jet, prel T. The data, after background subtraction, were fit with a Monte Carlo simulation including beauty and charm decays. The measured beauty cross section was extrapolated to the parton level with the b quark restricted to the region of transverse momentum pb T > = 5 GeV and pseudorapidity |ηb| < 2. The extrapolated cross section is 1.6 ± 0.4 (stat.)+0.3 -0.5(syst.)+0.2 -0.4(ext.) nb. The result is compared to a perturbative QCD calculation performed to next-to-leading order.",
author = "J. Breitweg and S. Chekanov and M. Derrick and D. Krakauer and S. Magill and B. Musgrave and A. Pellegrino and J. Repond and R. Stanek and R. Yoshida and Mattingly, {M. C K} and P. Antonioli and G. Bari and M. Basile and L. Bellagamba and D. Boscherini and A. Bruni and G. Bruni and {Cara Romeo}, G. and L. Cifarelli and F. Cindolo and A. Contin and M. Corradi and {de Pasquale}, S. and P. Giusti and G. Iacobucci and G. Levi and A. Margotti and T. Massam and R. Nania and F. Palmonari and A. Pesci and G. Sartorelli and A. Zichichi and G. Aghuzumtsyan and C. Amelung and I. Brock and K. Cob{\"o}ken and S. Goers and H. Hartmann and K. Heinloth and E. Hilger and P. Irrgang and Jakob, {H. P.} and A. Kappes and Katz, {U. F.} and R. Kerger and O. Kind and E. Paul and J. Rautenberg and H. Schnurbusch and A. Stifutkin and J. Tandler and Voss, {K. C.} and A. Weber and H. Wieber and Bailey, {D. S.} and O. Barret and Brook, {N. H.} and Cole, {J. E.} and B. Foster and Heath, {G. P.} and Heath, {H. F.} and S. Robins and E. Rodrigues and J. Scott and Tapper, {R. J.} and M. Capua and A. Mastroberardino and M. Schioppa and G. Susinno and Jeoung, {H. Y.} and Kim, {J. Y.} and Lee, {J. H.} and Lim, {I. T.} and Ma, {K. J.} and Pac, {M. Y.} and A. Caldwell and W. Liu and X. Liu and B. Mellado and S. Paganis and S. Sampson and Schmidke, {W. B.} and F. Sciulli and J. Chwastowski and A. Eskreys and J. Figiel and K. Klimek and K. Olkiewicz and K. Piotrzkowski and Przybycień, {M. B.} and P. Stopa and L. Zawiejski and B. Bednarek and K. Jeleń and D. Kisielewska and Kowal, {A. M.} and T. Kowalski and M. Przybycień and E. Rulikowska-Zarebska and L. Suszycki and D. Szuba and A. Kotanński and Bauerdick, {L. A T} and U. Behrens and Bienlein, {J. K.} and K. Borras and V. Chiochia and J. Crittenden and D. Dannheim and K. Desler and G. Drews and A. Fox-Murphy and U. Fricke and F. Goebel and P. G{\"o}ttlicher and R. Graciani and T. Haas and W. Hain and Hartner, {G. F.} and K. Hebbel and S. Hillert and W. Koch and U. K{\"o}tz and H. Kowalski and H. Labes and B. L{\"o}hr and R. Mankel and J. Martens and M. Mart{\'i}nez and M. Milite and M. Moritz and D. Notz and Petrucci, {M. C.} and A. Polini and M. Rohde and Savin, {A. A.} and U. Schneekloth and F. Selonke and M. Sievers and S. Stonjek and G. Wolf and U. Wollmer and C. Youngman and W. Zeuner and C. Coldewey and {Lopez-Duran Viani}, A. and A. Meyer and S. Schlenstedt and Straub, {P. B.} and G. Barbagli and E. Gallo and A. Parenti and Pelfer, {P. G.} and A. Bamberger and A. Benen and N. Coppola and S. Eisenhardt and P. Markun and H. Raach and S. W{\"o}lfle and Bussey, {P. J.} and M. Bell and Doyle, {A. T.} and C. Glasman and Lee, {S. W.} and A. Lupi and N. Macdonald and McCance, {G. J.} and Saxon, {D. H.} and Sinclair, {L. E.} and Skillicorn, {I. O.} and R. Waugh and B. Bodmann and N. Gendner and U. Holm and H. Salehi and K. Wick and A. Yildirim and T. Carli and A. Garfagnini and A. Geiser and I. Gialas and D. K{\cc}ira and R. Klanner and E. Lohrmann and R. Gon{\cc}alo and Long, {K. R.} and Miller, {D. B.} and Tapper, {A. D.} and R. Walker and P. Cloth and D. Filges and T. Ishii and M. Kuze and K. Nagano and K. Tokushuku and S. Yamada and Y. Yamazaki and Barakbaev, {A. N.} and Boos, {E. G.} and Pokrovskiy, {N. S.} and Zhautykov, {B. O.} and Ahn, {S. H.} and Lee, {S. B.} and Park, {Sung Keun} and H. Lim and D. Son and F. Barreiro and G. Garc{\'i}a and O. Gonz{\'a}lez and L. Labarga and {del Peso}, J. and I. Redondo and J. Terr{\'o}n and M. V{\'a}zquez and M. Barbi and F. Corriveau and S. Padhi and Stairs, {D. G.} and M. Wing and T. Tsurugai and A. Antonov and V. Bashkirov and M. Danilov and Dolgoshein, {B. A.} and D. Gladkov and V. Sosnovtsev and S. Suchkov and Dementiev, {R. K.} and Ermolov, {P. F.} and Golubkov, {Y. A.} and Katkov, {I. I.} and Khein, {L. A.} and Korotkova, {N. A.} and Korzhavina, {I. A.} and Kuzmin, {V. A.} and Lukina, {O. Y.} and Proskuryakov, {A. S.} and Shcheglova, {L. M.} and Solomin, {A. N.} and Vlasov, {N. N.} and Zotkin, {S. A.} and C. Bokel and M. Botje and N. Br{\"u}mmer and J. Engelen and S. Grijpink and E. Koffeman and P. Kooijman and S. Schagen and {van Sighem}, A. and E. Tassi and H. Tiecke and N. Tuning and Velthuis, {J. J.} and J. Vossebeld and L. Wiggers and {de Wolf}, E. and B. Bylsma and Durkin, {L. S.} and J. Gilmore and Ginsburg, {C. M.} and Kim, {C. L.} and Ling, {T. Y.} and S. Boogert and Cooper-Sarkar, {A. M.} and Devenish, {R. C E} and J. Grobe-Knetter and T. Matsushita and O. Ruske and Sutton, {M. R.} and R. Walczak and A. Bertolin and R. Brugnera and R. Carlin and {Dal Corso}, F. and S. Dusini and S. Limentani and A. Longhin and M. Posocco and L. Stanco and M. Turcato and L. Adamczyk and L. Iannotti and Oh, {B. Y.} and Okrasiński, {J. R.} and Saull, {P. R B} and Toothacker, {W. S.} and Whitmore, {J. J.} and Y. Iga and G. D'Agostini and G. Marini and A. Nigro and C. Cormack and Hart, {J. C.} and McCubbin, {N. A.} and Shah, {T. P.} and D. Epperson and C. Heusch and Sadrozinski, {H. F W} and A. Seiden and R. Wichmann and Williams, {D. C.} and Park, {I. H.} and N. Pavel and H. Abramowicz and S. Dagan and A. Gabareen and S. Kananov and A. Kreisel and A. Levy and T. Abe and T. Fusayasu and T. Kohno and K. Umemori and T. Yamashita and R. Hamatsu and T. Hirose and M. Inuzuka and S. Kitamura and K. Matsuzawa and T. Nishimura and M. Arneodo and N. Cartiglia and R. Cirio and M. Costa and Ferrero, {M. I.} and S. Maselli and V. Monaco and C. Peroni and M. Ruspa and R. Sacchi and A. Solano and A. Staiano and Bailey, {D. C.} and Fagerstroem, {C. P.} and R. Galea and T. Koop and Levman, {G. M.} and Martin, {J. F.} and A. Mirea and A. Sabetfakhri and Butterworth, {J. M.} and C. Gwenlan and Hayes, {M. E.} and Heaphy, {E. A.} and Jones, {T. W.} and Lane, {J. B.} and West, {B. J.} and J. Ciborowski and R. Ciesielski and G. Grzelak and Nowak, {R. J.} and Pawlak, {J. M.} and R. Pawlak and B. Smalska and T. Tymieniecka and Wr{\'o}blewski, {A. K.} and Zakrzewski, {J. A.} and Zarnecki, {A. F.} and M. Adamus and T. Gadaj and O. Deppe and Y. Eisenberg and Gladilin, {L. K.} and D. Hochman and U. Karshon and Badgett, {W. F.} and D. Chapin and R. Cross and C. Foudas and S. Mattingly and Reeder, {D. D.} and Smith, {W. H.} and A. Vaiciulis and T. Wildschek and M. Wodarczyk and A. Deshpande and S. Dhawan and Hughes, {V. W.} and S. Bhadra and Catterall, {C. D.} and Frisken, {W. R.} and R. Hall-Wilton and M. Khakzad and S. Menary",
year = "2001",
month = "12",
day = "1",
language = "English",
volume = "18",
pages = "625--637",
journal = "European Physical Journal C",
issn = "1434-6044",
publisher = "Springer New York",
number = "4",

}

TY - JOUR

T1 - Measurement of open beauty production in photoproduction at HERA

AU - Breitweg, J.

AU - Chekanov, S.

AU - Derrick, M.

AU - Krakauer, D.

AU - Magill, S.

AU - Musgrave, B.

AU - Pellegrino, A.

AU - Repond, J.

AU - Stanek, R.

AU - Yoshida, R.

AU - Mattingly, M. C K

AU - Antonioli, P.

AU - Bari, G.

AU - Basile, M.

AU - Bellagamba, L.

AU - Boscherini, D.

AU - Bruni, A.

AU - Bruni, G.

AU - Cara Romeo, G.

AU - Cifarelli, L.

AU - Cindolo, F.

AU - Contin, A.

AU - Corradi, M.

AU - de Pasquale, S.

AU - Giusti, P.

AU - Iacobucci, G.

AU - Levi, G.

AU - Margotti, A.

AU - Massam, T.

AU - Nania, R.

AU - Palmonari, F.

AU - Pesci, A.

AU - Sartorelli, G.

AU - Zichichi, A.

AU - Aghuzumtsyan, G.

AU - Amelung, C.

AU - Brock, I.

AU - Coböken, K.

AU - Goers, S.

AU - Hartmann, H.

AU - Heinloth, K.

AU - Hilger, E.

AU - Irrgang, P.

AU - Jakob, H. P.

AU - Kappes, A.

AU - Katz, U. F.

AU - Kerger, R.

AU - Kind, O.

AU - Paul, E.

AU - Rautenberg, J.

AU - Schnurbusch, H.

AU - Stifutkin, A.

AU - Tandler, J.

AU - Voss, K. C.

AU - Weber, A.

AU - Wieber, H.

AU - Bailey, D. S.

AU - Barret, O.

AU - Brook, N. H.

AU - Cole, J. E.

AU - Foster, B.

AU - Heath, G. P.

AU - Heath, H. F.

AU - Robins, S.

AU - Rodrigues, E.

AU - Scott, J.

AU - Tapper, R. J.

AU - Capua, M.

AU - Mastroberardino, A.

AU - Schioppa, M.

AU - Susinno, G.

AU - Jeoung, H. Y.

AU - Kim, J. Y.

AU - Lee, J. H.

AU - Lim, I. T.

AU - Ma, K. J.

AU - Pac, M. Y.

AU - Caldwell, A.

AU - Liu, W.

AU - Liu, X.

AU - Mellado, B.

AU - Paganis, S.

AU - Sampson, S.

AU - Schmidke, W. B.

AU - Sciulli, F.

AU - Chwastowski, J.

AU - Eskreys, A.

AU - Figiel, J.

AU - Klimek, K.

AU - Olkiewicz, K.

AU - Piotrzkowski, K.

AU - Przybycień, M. B.

AU - Stopa, P.

AU - Zawiejski, L.

AU - Bednarek, B.

AU - Jeleń, K.

AU - Kisielewska, D.

AU - Kowal, A. M.

AU - Kowalski, T.

AU - Przybycień, M.

AU - Rulikowska-Zarebska, E.

AU - Suszycki, L.

AU - Szuba, D.

AU - Kotanński, A.

AU - Bauerdick, L. A T

AU - Behrens, U.

AU - Bienlein, J. K.

AU - Borras, K.

AU - Chiochia, V.

AU - Crittenden, J.

AU - Dannheim, D.

AU - Desler, K.

AU - Drews, G.

AU - Fox-Murphy, A.

AU - Fricke, U.

AU - Goebel, F.

AU - Göttlicher, P.

AU - Graciani, R.

AU - Haas, T.

AU - Hain, W.

AU - Hartner, G. F.

AU - Hebbel, K.

AU - Hillert, S.

AU - Koch, W.

AU - Kötz, U.

AU - Kowalski, H.

AU - Labes, H.

AU - Löhr, B.

AU - Mankel, R.

AU - Martens, J.

AU - Martínez, M.

AU - Milite, M.

AU - Moritz, M.

AU - Notz, D.

AU - Petrucci, M. C.

AU - Polini, A.

AU - Rohde, M.

AU - Savin, A. A.

AU - Schneekloth, U.

AU - Selonke, F.

AU - Sievers, M.

AU - Stonjek, S.

AU - Wolf, G.

AU - Wollmer, U.

AU - Youngman, C.

AU - Zeuner, W.

AU - Coldewey, C.

AU - Lopez-Duran Viani, A.

AU - Meyer, A.

AU - Schlenstedt, S.

AU - Straub, P. B.

AU - Barbagli, G.

AU - Gallo, E.

AU - Parenti, A.

AU - Pelfer, P. G.

AU - Bamberger, A.

AU - Benen, A.

AU - Coppola, N.

AU - Eisenhardt, S.

AU - Markun, P.

AU - Raach, H.

AU - Wölfle, S.

AU - Bussey, P. J.

AU - Bell, M.

AU - Doyle, A. T.

AU - Glasman, C.

AU - Lee, S. W.

AU - Lupi, A.

AU - Macdonald, N.

AU - McCance, G. J.

AU - Saxon, D. H.

AU - Sinclair, L. E.

AU - Skillicorn, I. O.

AU - Waugh, R.

AU - Bodmann, B.

AU - Gendner, N.

AU - Holm, U.

AU - Salehi, H.

AU - Wick, K.

AU - Yildirim, A.

AU - Carli, T.

AU - Garfagnini, A.

AU - Geiser, A.

AU - Gialas, I.

AU - Kçira, D.

AU - Klanner, R.

AU - Lohrmann, E.

AU - Gonçalo, R.

AU - Long, K. R.

AU - Miller, D. B.

AU - Tapper, A. D.

AU - Walker, R.

AU - Cloth, P.

AU - Filges, D.

AU - Ishii, T.

AU - Kuze, M.

AU - Nagano, K.

AU - Tokushuku, K.

AU - Yamada, S.

AU - Yamazaki, Y.

AU - Barakbaev, A. N.

AU - Boos, E. G.

AU - Pokrovskiy, N. S.

AU - Zhautykov, B. O.

AU - Ahn, S. H.

AU - Lee, S. B.

AU - Park, Sung Keun

AU - Lim, H.

AU - Son, D.

AU - Barreiro, F.

AU - García, G.

AU - González, O.

AU - Labarga, L.

AU - del Peso, J.

AU - Redondo, I.

AU - Terrón, J.

AU - Vázquez, M.

AU - Barbi, M.

AU - Corriveau, F.

AU - Padhi, S.

AU - Stairs, D. G.

AU - Wing, M.

AU - Tsurugai, T.

AU - Antonov, A.

AU - Bashkirov, V.

AU - Danilov, M.

AU - Dolgoshein, B. A.

AU - Gladkov, D.

AU - Sosnovtsev, V.

AU - Suchkov, S.

AU - Dementiev, R. K.

AU - Ermolov, P. F.

AU - Golubkov, Y. A.

AU - Katkov, I. I.

AU - Khein, L. A.

AU - Korotkova, N. A.

AU - Korzhavina, I. A.

AU - Kuzmin, V. A.

AU - Lukina, O. Y.

AU - Proskuryakov, A. S.

AU - Shcheglova, L. M.

AU - Solomin, A. N.

AU - Vlasov, N. N.

AU - Zotkin, S. A.

AU - Bokel, C.

AU - Botje, M.

AU - Brümmer, N.

AU - Engelen, J.

AU - Grijpink, S.

AU - Koffeman, E.

AU - Kooijman, P.

AU - Schagen, S.

AU - van Sighem, A.

AU - Tassi, E.

AU - Tiecke, H.

AU - Tuning, N.

AU - Velthuis, J. J.

AU - Vossebeld, J.

AU - Wiggers, L.

AU - de Wolf, E.

AU - Bylsma, B.

AU - Durkin, L. S.

AU - Gilmore, J.

AU - Ginsburg, C. M.

AU - Kim, C. L.

AU - Ling, T. Y.

AU - Boogert, S.

AU - Cooper-Sarkar, A. M.

AU - Devenish, R. C E

AU - Grobe-Knetter, J.

AU - Matsushita, T.

AU - Ruske, O.

AU - Sutton, M. R.

AU - Walczak, R.

AU - Bertolin, A.

AU - Brugnera, R.

AU - Carlin, R.

AU - Dal Corso, F.

AU - Dusini, S.

AU - Limentani, S.

AU - Longhin, A.

AU - Posocco, M.

AU - Stanco, L.

AU - Turcato, M.

AU - Adamczyk, L.

AU - Iannotti, L.

AU - Oh, B. Y.

AU - Okrasiński, J. R.

AU - Saull, P. R B

AU - Toothacker, W. S.

AU - Whitmore, J. J.

AU - Iga, Y.

AU - D'Agostini, G.

AU - Marini, G.

AU - Nigro, A.

AU - Cormack, C.

AU - Hart, J. C.

AU - McCubbin, N. A.

AU - Shah, T. P.

AU - Epperson, D.

AU - Heusch, C.

AU - Sadrozinski, H. F W

AU - Seiden, A.

AU - Wichmann, R.

AU - Williams, D. C.

AU - Park, I. H.

AU - Pavel, N.

AU - Abramowicz, H.

AU - Dagan, S.

AU - Gabareen, A.

AU - Kananov, S.

AU - Kreisel, A.

AU - Levy, A.

AU - Abe, T.

AU - Fusayasu, T.

AU - Kohno, T.

AU - Umemori, K.

AU - Yamashita, T.

AU - Hamatsu, R.

AU - Hirose, T.

AU - Inuzuka, M.

AU - Kitamura, S.

AU - Matsuzawa, K.

AU - Nishimura, T.

AU - Arneodo, M.

AU - Cartiglia, N.

AU - Cirio, R.

AU - Costa, M.

AU - Ferrero, M. I.

AU - Maselli, S.

AU - Monaco, V.

AU - Peroni, C.

AU - Ruspa, M.

AU - Sacchi, R.

AU - Solano, A.

AU - Staiano, A.

AU - Bailey, D. C.

AU - Fagerstroem, C. P.

AU - Galea, R.

AU - Koop, T.

AU - Levman, G. M.

AU - Martin, J. F.

AU - Mirea, A.

AU - Sabetfakhri, A.

AU - Butterworth, J. M.

AU - Gwenlan, C.

AU - Hayes, M. E.

AU - Heaphy, E. A.

AU - Jones, T. W.

AU - Lane, J. B.

AU - West, B. J.

AU - Ciborowski, J.

AU - Ciesielski, R.

AU - Grzelak, G.

AU - Nowak, R. J.

AU - Pawlak, J. M.

AU - Pawlak, R.

AU - Smalska, B.

AU - Tymieniecka, T.

AU - Wróblewski, A. K.

AU - Zakrzewski, J. A.

AU - Zarnecki, A. F.

AU - Adamus, M.

AU - Gadaj, T.

AU - Deppe, O.

AU - Eisenberg, Y.

AU - Gladilin, L. K.

AU - Hochman, D.

AU - Karshon, U.

AU - Badgett, W. F.

AU - Chapin, D.

AU - Cross, R.

AU - Foudas, C.

AU - Mattingly, S.

AU - Reeder, D. D.

AU - Smith, W. H.

AU - Vaiciulis, A.

AU - Wildschek, T.

AU - Wodarczyk, M.

AU - Deshpande, A.

AU - Dhawan, S.

AU - Hughes, V. W.

AU - Bhadra, S.

AU - Catterall, C. D.

AU - Frisken, W. R.

AU - Hall-Wilton, R.

AU - Khakzad, M.

AU - Menary, S.

PY - 2001/12/1

Y1 - 2001/12/1

N2 - The production and semi-leptonic decay of heavy quarks have been studied in the photoproduction process e+p → e+ + dijet + e- + X with the ZEUS detector at HERA using an integrated luminosity of 38.5 pb-1. Events with photon-proton centre-of-mass energies, Wγp, between 134 and 269 GeV and a photon virtuality, Q2, less than 1 GeV2 were selected requiring at least two jets of transverse energy Ejet1(2) T > 7(6) GeV and an electron in the final state. The electrons were identified by employing the ionisation energy loss measurement. The contribution of beauty quarks was determined using the transverse momentum of the electron relative to the axis of the closest jet, prel T. The data, after background subtraction, were fit with a Monte Carlo simulation including beauty and charm decays. The measured beauty cross section was extrapolated to the parton level with the b quark restricted to the region of transverse momentum pb T > = 5 GeV and pseudorapidity |ηb| < 2. The extrapolated cross section is 1.6 ± 0.4 (stat.)+0.3 -0.5(syst.)+0.2 -0.4(ext.) nb. The result is compared to a perturbative QCD calculation performed to next-to-leading order.

AB - The production and semi-leptonic decay of heavy quarks have been studied in the photoproduction process e+p → e+ + dijet + e- + X with the ZEUS detector at HERA using an integrated luminosity of 38.5 pb-1. Events with photon-proton centre-of-mass energies, Wγp, between 134 and 269 GeV and a photon virtuality, Q2, less than 1 GeV2 were selected requiring at least two jets of transverse energy Ejet1(2) T > 7(6) GeV and an electron in the final state. The electrons were identified by employing the ionisation energy loss measurement. The contribution of beauty quarks was determined using the transverse momentum of the electron relative to the axis of the closest jet, prel T. The data, after background subtraction, were fit with a Monte Carlo simulation including beauty and charm decays. The measured beauty cross section was extrapolated to the parton level with the b quark restricted to the region of transverse momentum pb T > = 5 GeV and pseudorapidity |ηb| < 2. The extrapolated cross section is 1.6 ± 0.4 (stat.)+0.3 -0.5(syst.)+0.2 -0.4(ext.) nb. The result is compared to a perturbative QCD calculation performed to next-to-leading order.

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UR - http://www.scopus.com/inward/citedby.url?scp=0035652333&partnerID=8YFLogxK

M3 - Article

VL - 18

SP - 625

EP - 637

JO - European Physical Journal C

JF - European Physical Journal C

SN - 1434-6044

IS - 4

ER -