Measurement of the diffractive structure function FD(4) 2 at HERA

J. Breitweg, M. Derrick, D. Krakauer, S. Magill, D. Mikunas, B. Musgrave, J. Repond, R. Stanek, R. L. Talaga, R. Yoshida, H. Zhang, M. C K Mattingly, F. Anselmo, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni & 406 others G. Cara Romeo, G. Castellini, M. Chiarini, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, S. de Pasquale, I. Gialas, P. Giusti, G. Iacobucci, G. Laurenti, G. Levi, A. Margotti, T. Massam, R. Nania, C. Nemoz, F. Palmonari, A. Pesci, A. Polini, F. Ricci, G. Sartorelli, Y. Zamora Garcia, A. Zichichi, C. Amelung, A. Bornheim, I. Brock, K. Coböken, J. Crittenden, R. Deffner, M. Eckert, M. Grothe, H. Hartmann, K. Heinloth, L. Heinz, E. Hilger, H. P. Jakob, U. F. Katz, R. Kerger, E. Paul, M. Pfeiffer, Ch Rembser, J. Stamm, R. Wedemeyer, H. Wieber, D. S. Bailey, S. Campbell-Robson, W. N. Cottingham, B. Foster, R. Hall-Wilton, M. E. Hayes, G. P. Heath, H. F. Heath, J. D. McFall, D. Piccioni, D. G. Roff, R. J. Tapper, M. Arneodo, R. Ayad, M. Capua, A. Garfagnini, L. Iannotti, M. Schioppa, G. Susinno, J. Y. Kim, J. H. Lee, I. T. Lim, M. Y. Pac, A. Caldwell, N. Cartiglia, Z. Jing, W. Liu, B. Mellado, J. A. Parsons, S. Ritz, S. Sampson, F. Sciulli, P. B. Straub, Q. Zhu, P. Borzemski, J. Chwastowski, A. Eskreys, J. Figiel, K. Klimek, M. B. Przybycień, L. Zawiejski, L. Adamczyk, B. Bednarek, M. Bukowy, K. Jeleń, D. Kisielewska, T. Kowalski, M. Przybycień, E. Rulikowska-Zarȩbska, L. Suszycki, J. Zajaç, Z. Dulinński, A. Kotanński, G. Abbiendi, L. A T Bauerdick, U. Behrens, H. Beier, J. K. Bienlein, G. Cases, O. Deppe, K. Desler, G. Drews, U. Fricke, D. J. Gilkinson, C. Glasman, P. Göttlicher, T. Haas, W. Hain, D. Hasell, K. F. Johnson, M. Kasemann, W. Koch, U. Kötz, H. Kowalski, J. Labs, L. Lindemann, B. Lühr, M. Löwe, O. Mańczak, J. Milewski, T. Monteiro, J. S T Ng, D. Notz, K. Ohrenberg, I. H. Park, A. Pellegrino, F. Pelucchi, K. Piotrzkowski, M. Roco, M. Rohde, J. Roldńn, J. J. Ryan, A. A. Savin, U. Schneekloth, F. Selonke, B. Surrow, E. Tassi, T. Voß, D. Westphal, G. Wolf, U. Wollmer, C. Youngman, A. F. Zarnecki, W. Zeuner, B. D. Burow, H. J. Grabosch, A. Meyer, S. Schlenstedt, G. Barbagli, E. Gallo, P. Pelfer, G. Anzivino, G. Maccarrone, L. Votano, A. Bamberger, S. Eisenhardt, P. Markun, T. Trefzger, S. Wölfle, J. T. Bromley, N. H. Brook, P. J. Bussey, A. T. Doyle, N. Macdonald, D. H. Saxon, L. E. Sinclair, E. Strickland, R. Waugh, I. Bohnet, N. Gendner, U. Holm, A. Meyer-Larsen, H. Salehi, K. Wick, L. K. Gladilin, D. Horstmann, D. Kçira, R. Klanner, E. Lohrmann, G. Poelz, W. Schott, F. Zetsche, T. C. Bacon, I. Butterworth, J. E. Cole, G. Howell, B. H Y Hung, L. Lamberti, K. R. Long, D. B. Miller, N. Pavel, A. Prinias, J. K. Sedgbeer, D. Sideris, U. Mallik, S. M. Wang, J. T. Wu, P. Cloth, D. Filges, J. I. Fleck, T. Ishii, M. Kuze, I. Suzuki, K. Tokushuku, S. Yamada, K. Yamauchi, Y. Yamazaki, S. J. Hong, S. B. Lee, S. W. Nam, Sung Keun Park, F. Barreiro, J. P. Fernández, G. García, R. Graciani, J. M. Hernandez, L. Hervás, L. Labarga, M. Martínez, J. del Peso, J. Puga, J. Terrón, J. F. de Trocóniz, F. Corriveau, D. S. Hanna, J. Hartmann, L. W. Hung, W. N. Murray, A. Ochs, M. Riveline, D. G. Stairs, M. St-Laurent, R. Ullmann, T. Tsurugai, V. Bashkirov, B. A. Dolgoshein, A. Stifutkin, G. L. Bashindzhagyan, P. F. Ermolov, Y. A. Golubkov, L. A. Khein, N. A. Korotkova, I. A. Korzhavina, V. A. Kuzmin, O. Y. Lukina, A. S. Proskuryakov, L. M. Shcheglova, A. N. Solomin, S. A. Zotkin, C. Bokel, M. Botje, N. Brümmer, F. Chlebana, J. Engelen, E. Koffeman, P. Kooijman, A. van Sighem, H. Tiecke, N. Tuning, W. Verkerke, J. Vossebeld, M. Vreeswijk, L. Wiggers, E. de Wolf, D. Acosta, B. Bylsma, L. S. Durkin, J. Gilmore, C. M. Ginsburg, C. L. Kim, T. Y. Ling, P. Nylander, T. A. Romanowski, H. E. Blaikley, R. J. Cashmore, A. M. Cooper-Sarkar, R. C E Devenish, J. K. Edmonds, J. Große-Knetter, N. Harnew, M. Lancaster, C. Nath, V. A. Noyes, A. Quadt, O. Ruske, J. R. Tickner, H. Uijterwaal, R. Walczak, D. S. Waters, A. Bertolin, R. Brugnera, R. Carlin, F. Dal Corso, U. Dosselli, S. Limentani, M. Morandin, M. Posocco, L. Stanco, R. Stroili, C. Voci, J. Bulmahn, B. Y. Oh, J. R. Okrasiński, W. S. Toothacker, J. J. Whitmore, Y. Iga, G. D'Agostini, G. Marini, A. Nigro, M. Raso, J. C. Hart, N. A. McCubbin, T. P. Shah, E. Barberis, D. Epperson, C. Heusch, J. T. Rahn, H. F W Sadrozinski, A. Seiden, R. Wichmann, D. C. Williams, O. Schwarzer, A. H. Walenta, H. Abramowicz, G. Briskin, S. Dagan, S. Kananov, A. Levy, T. Abe, T. Fusayasu, M. Inuzuka, K. Nagano, K. Umemori, T. Yamashita, R. Hamatsu, T. Hirose, K. Homma, S. Kitamura, T. Matsushita, R. Cirio, M. Costa, M. I. Ferrero, S. Maselli, V. Monaco, C. Peroni, M. C. Petrucci, M. Ruspa, R. Sacchi, A. Solano, A. Staiano, M. Dardo, D. C. Bailey, C. P. Fagerstroem, R. Galea, G. F. Hartner, K. K. Joo, G. M. Levman, J. F. Martin, R. S. Orr, S. Polenz, A. Sabetfakhri, D. Simmons, R. J. Teuscher, J. M. Butterworth, C. D. Catterall, T. W. Jones, J. B. Lane, R. L. Saunders, J. Shulman, M. R. Sutton, M. Wing, J. Ciborowski, G. Grzelak, M. Kasprzak, K. Muchorowski, R. J. Nowak, J. M. Pawlak, R. Pawlak, T. Tymieniecka, A. K. Wrńblewski, J. A. Zakrzewski, M. Adamus, C. Coldewey, Y. Eisenberg, D. Hochman, U. Karshon, W. F. Badgett, D. Chapin, R. Cross, S. Dasu, C. Foudas, R. J. Loveless, S. Mattingly, D. D. Reeder, W. H. Smith, A. Vaiciulis, M. Wodarczyk, S. Bhadra, W. R. Frisken, M. Khakzad, W. B. Schmidke

Research output: Contribution to journalArticle

112 Citations (Scopus)

Abstract

This paper presents the first analysis of diffractive photon dissociation events in deep inelastic positron-proton scattering at HERA in which the proton in the final state is detected and its momentum measured. The events are selected by requiring a scattered proton in the ZEUS leading proton spectrometer (LPS) with xL > 0.97, where xL is the fraction of the incoming proton beam momentum carried by the scattered proton. The use of the LPS significantly reduces the contamination from events with diffractive dissociation of the proton into low mass states and allows a direct measurement of t, the square of the four-momentum exchanged at the proton vertex. The dependence of the cross section on t is measured in the interval 0.073 < \t\ < 0.4 GeV2 and is found to be described by an exponential shape with the slope parameter b = 7.2 ± 1.1(stat.)+0.7 -0.9(syst.) GeV-2. The diffractive structure function FD(4) 2 is presented as a function of xIP, ≃ 1 - xL and β, the momentum fraction of the struck quark with respect to xIP, and averaged over the t interval 0.073 < \t\ < 0.4 GeV2 and the photon virtuality range 5 < Q2 < 20 GeV2. In the kinematic range 4 x 10-4 < xIP < 0.03 and 0.015 < β < 0.5, the xIP dependence of FD(4) 2 is fitted with a form (1/xIP)a , yielding a = 1.00 ± 0.09 (stat.)+0.11 -0.05(syst.). Upon integration over t, the structure function FD(3) 2 is determined in a kinematic range extending to higher xIP and lower β compared to our previous analysis; the results are discussed within the framework of Regge theory.

Original languageEnglish
Pages (from-to)81-96
Number of pages16
JournalEuropean Physical Journal C
Volume1
Issue number1-2
Publication statusPublished - 1998 Dec 1

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Protons
protons
Momentum
momentum
kinematics
Spectrometers
Kinematics
dissociation
spectrometers
Photons
intervals
photons
proton scattering
Proton beams
proton beams
Positrons
positrons
apexes
contamination
quarks

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Breitweg, J., Derrick, M., Krakauer, D., Magill, S., Mikunas, D., Musgrave, B., ... Schmidke, W. B. (1998). Measurement of the diffractive structure function FD(4) 2 at HERA. European Physical Journal C, 1(1-2), 81-96.

Measurement of the diffractive structure function FD(4) 2 at HERA. / Breitweg, J.; Derrick, M.; Krakauer, D.; Magill, S.; Mikunas, D.; Musgrave, B.; Repond, J.; Stanek, R.; Talaga, R. L.; Yoshida, R.; Zhang, H.; Mattingly, M. C K; Anselmo, F.; Antonioli, P.; Bari, G.; Basile, M.; Bellagamba, L.; Boscherini, D.; Bruni, A.; Bruni, G.; Cara Romeo, G.; Castellini, G.; Chiarini, M.; Cifarelli, L.; Cindolo, F.; Contin, A.; Corradi, M.; de Pasquale, S.; Gialas, I.; Giusti, P.; Iacobucci, G.; Laurenti, G.; Levi, G.; Margotti, A.; Massam, T.; Nania, R.; Nemoz, C.; Palmonari, F.; Pesci, A.; Polini, A.; Ricci, F.; Sartorelli, G.; Zamora Garcia, Y.; Zichichi, A.; Amelung, C.; Bornheim, A.; Brock, I.; Coböken, K.; Crittenden, J.; Deffner, R.; Eckert, M.; Grothe, M.; Hartmann, H.; Heinloth, K.; Heinz, L.; Hilger, E.; Jakob, H. P.; Katz, U. F.; Kerger, R.; Paul, E.; Pfeiffer, M.; Rembser, Ch; Stamm, J.; Wedemeyer, R.; Wieber, H.; Bailey, D. S.; Campbell-Robson, S.; Cottingham, W. N.; Foster, B.; Hall-Wilton, R.; Hayes, M. E.; Heath, G. P.; Heath, H. F.; McFall, J. D.; Piccioni, D.; Roff, D. G.; Tapper, R. J.; Arneodo, M.; Ayad, R.; Capua, M.; Garfagnini, A.; Iannotti, L.; Schioppa, M.; Susinno, G.; Kim, J. Y.; Lee, J. H.; Lim, I. T.; Pac, M. Y.; Caldwell, A.; Cartiglia, N.; Jing, Z.; Liu, W.; Mellado, B.; Parsons, J. A.; Ritz, S.; Sampson, S.; Sciulli, F.; Straub, P. B.; Zhu, Q.; Borzemski, P.; Chwastowski, J.; Eskreys, A.; Figiel, J.; Klimek, K.; Przybycień, M. B.; Zawiejski, L.; Adamczyk, L.; Bednarek, B.; Bukowy, M.; Jeleń, K.; Kisielewska, D.; Kowalski, T.; Przybycień, M.; Rulikowska-Zarȩbska, E.; Suszycki, L.; Zajaç, J.; Dulinński, Z.; Kotanński, A.; Abbiendi, G.; Bauerdick, L. A T; Behrens, U.; Beier, H.; Bienlein, J. K.; Cases, G.; Deppe, O.; Desler, K.; Drews, G.; Fricke, U.; Gilkinson, D. J.; Glasman, C.; Göttlicher, P.; Haas, T.; Hain, W.; Hasell, D.; Johnson, K. F.; Kasemann, M.; Koch, W.; Kötz, U.; Kowalski, H.; Labs, J.; Lindemann, L.; Lühr, B.; Löwe, M.; Mańczak, O.; Milewski, J.; Monteiro, T.; Ng, J. S T; Notz, D.; Ohrenberg, K.; Park, I. H.; Pellegrino, A.; Pelucchi, F.; Piotrzkowski, K.; Roco, M.; Rohde, M.; Roldńn, J.; Ryan, J. J.; Savin, A. A.; Schneekloth, U.; Selonke, F.; Surrow, B.; Tassi, E.; Voß, T.; Westphal, D.; Wolf, G.; Wollmer, U.; Youngman, C.; Zarnecki, A. F.; Zeuner, W.; Burow, B. D.; Grabosch, H. J.; Meyer, A.; Schlenstedt, S.; Barbagli, G.; Gallo, E.; Pelfer, P.; Anzivino, G.; Maccarrone, G.; Votano, L.; Bamberger, A.; Eisenhardt, S.; Markun, P.; Trefzger, T.; Wölfle, S.; Bromley, J. T.; Brook, N. H.; Bussey, P. J.; Doyle, A. T.; Macdonald, N.; Saxon, D. H.; Sinclair, L. E.; Strickland, E.; Waugh, R.; Bohnet, I.; Gendner, N.; Holm, U.; Meyer-Larsen, A.; Salehi, H.; Wick, K.; Gladilin, L. K.; Horstmann, D.; Kçira, D.; Klanner, R.; Lohrmann, E.; Poelz, G.; Schott, W.; Zetsche, F.; Bacon, T. C.; Butterworth, I.; Cole, J. E.; Howell, G.; Hung, B. H Y; Lamberti, L.; Long, K. R.; Miller, D. B.; Pavel, N.; Prinias, A.; Sedgbeer, J. K.; Sideris, D.; Mallik, U.; Wang, S. M.; Wu, J. T.; Cloth, P.; Filges, D.; Fleck, J. I.; Ishii, T.; Kuze, M.; Suzuki, I.; Tokushuku, K.; Yamada, S.; Yamauchi, K.; Yamazaki, Y.; Hong, S. J.; Lee, S. B.; Nam, S. W.; Park, Sung Keun; Barreiro, F.; Fernández, J. P.; García, G.; Graciani, R.; Hernandez, J. M.; Hervás, L.; Labarga, L.; Martínez, M.; del Peso, J.; Puga, J.; Terrón, J.; de Trocóniz, J. F.; Corriveau, F.; Hanna, D. S.; Hartmann, J.; Hung, L. W.; Murray, W. N.; Ochs, A.; Riveline, M.; Stairs, D. G.; St-Laurent, M.; Ullmann, R.; Tsurugai, T.; Bashkirov, V.; Dolgoshein, B. A.; Stifutkin, A.; Bashindzhagyan, G. L.; Ermolov, P. F.; Golubkov, Y. A.; Khein, L. A.; Korotkova, N. A.; Korzhavina, I. A.; Kuzmin, V. A.; Lukina, O. Y.; Proskuryakov, A. S.; Shcheglova, L. M.; Solomin, A. N.; Zotkin, S. A.; Bokel, C.; Botje, M.; Brümmer, N.; Chlebana, F.; Engelen, J.; Koffeman, E.; Kooijman, P.; van Sighem, A.; Tiecke, H.; Tuning, N.; Verkerke, W.; Vossebeld, J.; Vreeswijk, M.; Wiggers, L.; de Wolf, E.; Acosta, D.; Bylsma, B.; Durkin, L. S.; Gilmore, J.; Ginsburg, C. M.; Kim, C. L.; Ling, T. Y.; Nylander, P.; Romanowski, T. A.; Blaikley, H. E.; Cashmore, R. J.; Cooper-Sarkar, A. M.; Devenish, R. C E; Edmonds, J. K.; Große-Knetter, J.; Harnew, N.; Lancaster, M.; Nath, C.; Noyes, V. A.; Quadt, A.; Ruske, O.; Tickner, J. R.; Uijterwaal, H.; Walczak, R.; Waters, D. S.; Bertolin, A.; Brugnera, R.; Carlin, R.; Dal Corso, F.; Dosselli, U.; Limentani, S.; Morandin, M.; Posocco, M.; Stanco, L.; Stroili, R.; Voci, C.; Bulmahn, J.; Oh, B. Y.; Okrasiński, J. R.; Toothacker, W. S.; Whitmore, J. J.; Iga, Y.; D'Agostini, G.; Marini, G.; Nigro, A.; Raso, M.; Hart, J. C.; McCubbin, N. A.; Shah, T. P.; Barberis, E.; Epperson, D.; Heusch, C.; Rahn, J. T.; Sadrozinski, H. F W; Seiden, A.; Wichmann, R.; Williams, D. C.; Schwarzer, O.; Walenta, A. H.; Abramowicz, H.; Briskin, G.; Dagan, S.; Kananov, S.; Levy, A.; Abe, T.; Fusayasu, T.; Inuzuka, M.; Nagano, K.; Umemori, K.; Yamashita, T.; Hamatsu, R.; Hirose, T.; Homma, K.; Kitamura, S.; Matsushita, T.; Cirio, R.; Costa, M.; Ferrero, M. I.; Maselli, S.; Monaco, V.; Peroni, C.; Petrucci, M. C.; Ruspa, M.; Sacchi, R.; Solano, A.; Staiano, A.; Dardo, M.; Bailey, D. C.; Fagerstroem, C. P.; Galea, R.; Hartner, G. F.; Joo, K. K.; Levman, G. M.; Martin, J. F.; Orr, R. S.; Polenz, S.; Sabetfakhri, A.; Simmons, D.; Teuscher, R. J.; Butterworth, J. M.; Catterall, C. D.; Jones, T. W.; Lane, J. B.; Saunders, R. L.; Shulman, J.; Sutton, M. R.; Wing, M.; Ciborowski, J.; Grzelak, G.; Kasprzak, M.; Muchorowski, K.; Nowak, R. J.; Pawlak, J. M.; Pawlak, R.; Tymieniecka, T.; Wrńblewski, A. K.; Zakrzewski, J. A.; Adamus, M.; Coldewey, C.; Eisenberg, Y.; Hochman, D.; Karshon, U.; Badgett, W. F.; Chapin, D.; Cross, R.; Dasu, S.; Foudas, C.; Loveless, R. J.; Mattingly, S.; Reeder, D. D.; Smith, W. H.; Vaiciulis, A.; Wodarczyk, M.; Bhadra, S.; Frisken, W. R.; Khakzad, M.; Schmidke, W. B.

In: European Physical Journal C, Vol. 1, No. 1-2, 01.12.1998, p. 81-96.

Research output: Contribution to journalArticle

Breitweg, J, Derrick, M, Krakauer, D, Magill, S, Mikunas, D, Musgrave, B, Repond, J, Stanek, R, Talaga, RL, Yoshida, R, Zhang, H, Mattingly, MCK, Anselmo, F, Antonioli, P, Bari, G, Basile, M, Bellagamba, L, Boscherini, D, Bruni, A, Bruni, G, Cara Romeo, G, Castellini, G, Chiarini, M, Cifarelli, L, Cindolo, F, Contin, A, Corradi, M, de Pasquale, S, Gialas, I, Giusti, P, Iacobucci, G, Laurenti, G, Levi, G, Margotti, A, Massam, T, Nania, R, Nemoz, C, Palmonari, F, Pesci, A, Polini, A, Ricci, F, Sartorelli, G, Zamora Garcia, Y, Zichichi, A, Amelung, C, Bornheim, A, Brock, I, Coböken, K, Crittenden, J, Deffner, R, Eckert, M, Grothe, M, Hartmann, H, Heinloth, K, Heinz, L, Hilger, E, Jakob, HP, Katz, UF, Kerger, R, Paul, E, Pfeiffer, M, Rembser, C, Stamm, J, Wedemeyer, R, Wieber, H, Bailey, DS, Campbell-Robson, S, Cottingham, WN, Foster, B, Hall-Wilton, R, Hayes, ME, Heath, GP, Heath, HF, McFall, JD, Piccioni, D, Roff, DG, Tapper, RJ, Arneodo, M, Ayad, R, Capua, M, Garfagnini, A, Iannotti, L, Schioppa, M, Susinno, G, Kim, JY, Lee, JH, Lim, IT, Pac, MY, Caldwell, A, Cartiglia, N, Jing, Z, Liu, W, Mellado, B, Parsons, JA, Ritz, S, Sampson, S, Sciulli, F, Straub, PB, Zhu, Q, Borzemski, P, Chwastowski, J, Eskreys, A, Figiel, J, Klimek, K, Przybycień, MB, Zawiejski, L, Adamczyk, L, Bednarek, B, Bukowy, M, Jeleń, K, Kisielewska, D, Kowalski, T, Przybycień, M, Rulikowska-Zarȩbska, E, Suszycki, L, Zajaç, J, Dulinński, Z, Kotanński, A, Abbiendi, G, Bauerdick, LAT, Behrens, U, Beier, H, Bienlein, JK, Cases, G, Deppe, O, Desler, K, Drews, G, Fricke, U, Gilkinson, DJ, Glasman, C, Göttlicher, P, Haas, T, Hain, W, Hasell, D, Johnson, KF, Kasemann, M, Koch, W, Kötz, U, Kowalski, H, Labs, J, Lindemann, L, Lühr, B, Löwe, M, Mańczak, O, Milewski, J, Monteiro, T, Ng, JST, Notz, D, Ohrenberg, K, Park, IH, Pellegrino, A, Pelucchi, F, Piotrzkowski, K, Roco, M, Rohde, M, Roldńn, J, Ryan, JJ, Savin, AA, Schneekloth, U, Selonke, F, Surrow, B, Tassi, E, Voß, T, Westphal, D, Wolf, G, Wollmer, U, Youngman, C, Zarnecki, AF, Zeuner, W, Burow, BD, Grabosch, HJ, Meyer, A, Schlenstedt, S, Barbagli, G, Gallo, E, Pelfer, P, Anzivino, G, Maccarrone, G, Votano, L, Bamberger, A, Eisenhardt, S, Markun, P, Trefzger, T, Wölfle, S, Bromley, JT, Brook, NH, Bussey, PJ, Doyle, AT, Macdonald, N, Saxon, DH, Sinclair, LE, Strickland, E, Waugh, R, Bohnet, I, Gendner, N, Holm, U, Meyer-Larsen, A, Salehi, H, Wick, K, Gladilin, LK, Horstmann, D, Kçira, D, Klanner, R, Lohrmann, E, Poelz, G, Schott, W, Zetsche, F, Bacon, TC, Butterworth, I, Cole, JE, Howell, G, Hung, BHY, Lamberti, L, Long, KR, Miller, DB, Pavel, N, Prinias, A, Sedgbeer, JK, Sideris, D, Mallik, U, Wang, SM, Wu, JT, Cloth, P, Filges, D, Fleck, JI, Ishii, T, Kuze, M, Suzuki, I, Tokushuku, K, Yamada, S, Yamauchi, K, Yamazaki, Y, Hong, SJ, Lee, SB, Nam, SW, Park, SK, Barreiro, F, Fernández, JP, García, G, Graciani, R, Hernandez, JM, Hervás, L, Labarga, L, Martínez, M, del Peso, J, Puga, J, Terrón, J, de Trocóniz, JF, Corriveau, F, Hanna, DS, Hartmann, J, Hung, LW, Murray, WN, Ochs, A, Riveline, M, Stairs, DG, St-Laurent, M, Ullmann, R, Tsurugai, T, Bashkirov, V, Dolgoshein, BA, Stifutkin, A, Bashindzhagyan, GL, Ermolov, PF, Golubkov, YA, Khein, LA, Korotkova, NA, Korzhavina, IA, Kuzmin, VA, Lukina, OY, Proskuryakov, AS, Shcheglova, LM, Solomin, AN, Zotkin, SA, Bokel, C, Botje, M, Brümmer, N, Chlebana, F, Engelen, J, Koffeman, E, Kooijman, P, van Sighem, A, Tiecke, H, Tuning, N, Verkerke, W, Vossebeld, J, Vreeswijk, M, Wiggers, L, de Wolf, E, Acosta, D, Bylsma, B, Durkin, LS, Gilmore, J, Ginsburg, CM, Kim, CL, Ling, TY, Nylander, P, Romanowski, TA, Blaikley, HE, Cashmore, RJ, Cooper-Sarkar, AM, Devenish, RCE, Edmonds, JK, Große-Knetter, J, Harnew, N, Lancaster, M, Nath, C, Noyes, VA, Quadt, A, Ruske, O, Tickner, JR, Uijterwaal, H, Walczak, R, Waters, DS, Bertolin, A, Brugnera, R, Carlin, R, Dal Corso, F, Dosselli, U, Limentani, S, Morandin, M, Posocco, M, Stanco, L, Stroili, R, Voci, C, Bulmahn, J, Oh, BY, Okrasiński, JR, Toothacker, WS, Whitmore, JJ, Iga, Y, D'Agostini, G, Marini, G, Nigro, A, Raso, M, Hart, JC, McCubbin, NA, Shah, TP, Barberis, E, Epperson, D, Heusch, C, Rahn, JT, Sadrozinski, HFW, Seiden, A, Wichmann, R, Williams, DC, Schwarzer, O, Walenta, AH, Abramowicz, H, Briskin, G, Dagan, S, Kananov, S, Levy, A, Abe, T, Fusayasu, T, Inuzuka, M, Nagano, K, Umemori, K, Yamashita, T, Hamatsu, R, Hirose, T, Homma, K, Kitamura, S, Matsushita, T, Cirio, R, Costa, M, Ferrero, MI, Maselli, S, Monaco, V, Peroni, C, Petrucci, MC, Ruspa, M, Sacchi, R, Solano, A, Staiano, A, Dardo, M, Bailey, DC, Fagerstroem, CP, Galea, R, Hartner, GF, Joo, KK, Levman, GM, Martin, JF, Orr, RS, Polenz, S, Sabetfakhri, A, Simmons, D, Teuscher, RJ, Butterworth, JM, Catterall, CD, Jones, TW, Lane, JB, Saunders, RL, Shulman, J, Sutton, MR, Wing, M, Ciborowski, J, Grzelak, G, Kasprzak, M, Muchorowski, K, Nowak, RJ, Pawlak, JM, Pawlak, R, Tymieniecka, T, Wrńblewski, AK, Zakrzewski, JA, Adamus, M, Coldewey, C, Eisenberg, Y, Hochman, D, Karshon, U, Badgett, WF, Chapin, D, Cross, R, Dasu, S, Foudas, C, Loveless, RJ, Mattingly, S, Reeder, DD, Smith, WH, Vaiciulis, A, Wodarczyk, M, Bhadra, S, Frisken, WR, Khakzad, M & Schmidke, WB 1998, 'Measurement of the diffractive structure function FD(4) 2 at HERA', European Physical Journal C, vol. 1, no. 1-2, pp. 81-96.
Breitweg J, Derrick M, Krakauer D, Magill S, Mikunas D, Musgrave B et al. Measurement of the diffractive structure function FD(4) 2 at HERA. European Physical Journal C. 1998 Dec 1;1(1-2):81-96.
Breitweg, J. ; Derrick, M. ; Krakauer, D. ; Magill, S. ; Mikunas, D. ; Musgrave, B. ; Repond, J. ; Stanek, R. ; Talaga, R. L. ; Yoshida, R. ; Zhang, H. ; Mattingly, M. C K ; Anselmo, F. ; Antonioli, P. ; Bari, G. ; Basile, M. ; Bellagamba, L. ; Boscherini, D. ; Bruni, A. ; Bruni, G. ; Cara Romeo, G. ; Castellini, G. ; Chiarini, M. ; Cifarelli, L. ; Cindolo, F. ; Contin, A. ; Corradi, M. ; de Pasquale, S. ; Gialas, I. ; Giusti, P. ; Iacobucci, G. ; Laurenti, G. ; Levi, G. ; Margotti, A. ; Massam, T. ; Nania, R. ; Nemoz, C. ; Palmonari, F. ; Pesci, A. ; Polini, A. ; Ricci, F. ; Sartorelli, G. ; Zamora Garcia, Y. ; Zichichi, A. ; Amelung, C. ; Bornheim, A. ; Brock, I. ; Coböken, K. ; Crittenden, J. ; Deffner, R. ; Eckert, M. ; Grothe, M. ; Hartmann, H. ; Heinloth, K. ; Heinz, L. ; Hilger, E. ; Jakob, H. P. ; Katz, U. F. ; Kerger, R. ; Paul, E. ; Pfeiffer, M. ; Rembser, Ch ; Stamm, J. ; Wedemeyer, R. ; Wieber, H. ; Bailey, D. S. ; Campbell-Robson, S. ; Cottingham, W. N. ; Foster, B. ; Hall-Wilton, R. ; Hayes, M. E. ; Heath, G. P. ; Heath, H. F. ; McFall, J. D. ; Piccioni, D. ; Roff, D. G. ; Tapper, R. J. ; Arneodo, M. ; Ayad, R. ; Capua, M. ; Garfagnini, A. ; Iannotti, L. ; Schioppa, M. ; Susinno, G. ; Kim, J. Y. ; Lee, J. H. ; Lim, I. T. ; Pac, M. Y. ; Caldwell, A. ; Cartiglia, N. ; Jing, Z. ; Liu, W. ; Mellado, B. ; Parsons, J. A. ; Ritz, S. ; Sampson, S. ; Sciulli, F. ; Straub, P. B. ; Zhu, Q. ; Borzemski, P. ; Chwastowski, J. ; Eskreys, A. ; Figiel, J. ; Klimek, K. ; Przybycień, M. B. ; Zawiejski, L. ; Adamczyk, L. ; Bednarek, B. ; Bukowy, M. ; Jeleń, K. ; Kisielewska, D. ; Kowalski, T. ; Przybycień, M. ; Rulikowska-Zarȩbska, E. ; Suszycki, L. ; Zajaç, J. ; Dulinński, Z. ; Kotanński, A. ; Abbiendi, G. ; Bauerdick, L. A T ; Behrens, U. ; Beier, H. ; Bienlein, J. K. ; Cases, G. ; Deppe, O. ; Desler, K. ; Drews, G. ; Fricke, U. ; Gilkinson, D. J. ; Glasman, C. ; Göttlicher, P. ; Haas, T. ; Hain, W. ; Hasell, D. ; Johnson, K. F. ; Kasemann, M. ; Koch, W. ; Kötz, U. ; Kowalski, H. ; Labs, J. ; Lindemann, L. ; Lühr, B. ; Löwe, M. ; Mańczak, O. ; Milewski, J. ; Monteiro, T. ; Ng, J. S T ; Notz, D. ; Ohrenberg, K. ; Park, I. H. ; Pellegrino, A. ; Pelucchi, F. ; Piotrzkowski, K. ; Roco, M. ; Rohde, M. ; Roldńn, J. ; Ryan, J. J. ; Savin, A. A. ; Schneekloth, U. ; Selonke, F. ; Surrow, B. ; Tassi, E. ; Voß, T. ; Westphal, D. ; Wolf, G. ; Wollmer, U. ; Youngman, C. ; Zarnecki, A. F. ; Zeuner, W. ; Burow, B. D. ; Grabosch, H. J. ; Meyer, A. ; Schlenstedt, S. ; Barbagli, G. ; Gallo, E. ; Pelfer, P. ; Anzivino, G. ; Maccarrone, G. ; Votano, L. ; Bamberger, A. ; Eisenhardt, S. ; Markun, P. ; Trefzger, T. ; Wölfle, S. ; Bromley, J. T. ; Brook, N. H. ; Bussey, P. J. ; Doyle, A. T. ; Macdonald, N. ; Saxon, D. H. ; Sinclair, L. E. ; Strickland, E. ; Waugh, R. ; Bohnet, I. ; Gendner, N. ; Holm, U. ; Meyer-Larsen, A. ; Salehi, H. ; Wick, K. ; Gladilin, L. K. ; Horstmann, D. ; Kçira, D. ; Klanner, R. ; Lohrmann, E. ; Poelz, G. ; Schott, W. ; Zetsche, F. ; Bacon, T. C. ; Butterworth, I. ; Cole, J. E. ; Howell, G. ; Hung, B. H Y ; Lamberti, L. ; Long, K. R. ; Miller, D. B. ; Pavel, N. ; Prinias, A. ; Sedgbeer, J. K. ; Sideris, D. ; Mallik, U. ; Wang, S. M. ; Wu, J. T. ; Cloth, P. ; Filges, D. ; Fleck, J. I. ; Ishii, T. ; Kuze, M. ; Suzuki, I. ; Tokushuku, K. ; Yamada, S. ; Yamauchi, K. ; Yamazaki, Y. ; Hong, S. J. ; Lee, S. B. ; Nam, S. W. ; Park, Sung Keun ; Barreiro, F. ; Fernández, J. P. ; García, G. ; Graciani, R. ; Hernandez, J. M. ; Hervás, L. ; Labarga, L. ; Martínez, M. ; del Peso, J. ; Puga, J. ; Terrón, J. ; de Trocóniz, J. F. ; Corriveau, F. ; Hanna, D. S. ; Hartmann, J. ; Hung, L. W. ; Murray, W. N. ; Ochs, A. ; Riveline, M. ; Stairs, D. G. ; St-Laurent, M. ; Ullmann, R. ; Tsurugai, T. ; Bashkirov, V. ; Dolgoshein, B. A. ; Stifutkin, A. ; Bashindzhagyan, G. L. ; Ermolov, P. F. ; Golubkov, Y. A. ; Khein, L. A. ; Korotkova, N. A. ; Korzhavina, I. A. ; Kuzmin, V. A. ; Lukina, O. Y. ; Proskuryakov, A. S. ; Shcheglova, L. M. ; Solomin, A. N. ; Zotkin, S. A. ; Bokel, C. ; Botje, M. ; Brümmer, N. ; Chlebana, F. ; Engelen, J. ; Koffeman, E. ; Kooijman, P. ; van Sighem, A. ; Tiecke, H. ; Tuning, N. ; Verkerke, W. ; Vossebeld, J. ; Vreeswijk, M. ; Wiggers, L. ; de Wolf, E. ; Acosta, D. ; Bylsma, B. ; Durkin, L. S. ; Gilmore, J. ; Ginsburg, C. M. ; Kim, C. L. ; Ling, T. Y. ; Nylander, P. ; Romanowski, T. A. ; Blaikley, H. E. ; Cashmore, R. J. ; Cooper-Sarkar, A. M. ; Devenish, R. C E ; Edmonds, J. K. ; Große-Knetter, J. ; Harnew, N. ; Lancaster, M. ; Nath, C. ; Noyes, V. A. ; Quadt, A. ; Ruske, O. ; Tickner, J. R. ; Uijterwaal, H. ; Walczak, R. ; Waters, D. S. ; Bertolin, A. ; Brugnera, R. ; Carlin, R. ; Dal Corso, F. ; Dosselli, U. ; Limentani, S. ; Morandin, M. ; Posocco, M. ; Stanco, L. ; Stroili, R. ; Voci, C. ; Bulmahn, J. ; Oh, B. Y. ; Okrasiński, J. R. ; Toothacker, W. S. ; Whitmore, J. J. ; Iga, Y. ; D'Agostini, G. ; Marini, G. ; Nigro, A. ; Raso, M. ; Hart, J. C. ; McCubbin, N. A. ; Shah, T. P. ; Barberis, E. ; Epperson, D. ; Heusch, C. ; Rahn, J. T. ; Sadrozinski, H. F W ; Seiden, A. ; Wichmann, R. ; Williams, D. C. ; Schwarzer, O. ; Walenta, A. H. ; Abramowicz, H. ; Briskin, G. ; Dagan, S. ; Kananov, S. ; Levy, A. ; Abe, T. ; Fusayasu, T. ; Inuzuka, M. ; Nagano, K. ; Umemori, K. ; Yamashita, T. ; Hamatsu, R. ; Hirose, T. ; Homma, K. ; Kitamura, S. ; Matsushita, T. ; Cirio, R. ; Costa, M. ; Ferrero, M. I. ; Maselli, S. ; Monaco, V. ; Peroni, C. ; Petrucci, M. C. ; Ruspa, M. ; Sacchi, R. ; Solano, A. ; Staiano, A. ; Dardo, M. ; Bailey, D. C. ; Fagerstroem, C. P. ; Galea, R. ; Hartner, G. F. ; Joo, K. K. ; Levman, G. M. ; Martin, J. F. ; Orr, R. S. ; Polenz, S. ; Sabetfakhri, A. ; Simmons, D. ; Teuscher, R. J. ; Butterworth, J. M. ; Catterall, C. D. ; Jones, T. W. ; Lane, J. B. ; Saunders, R. L. ; Shulman, J. ; Sutton, M. R. ; Wing, M. ; Ciborowski, J. ; Grzelak, G. ; Kasprzak, M. ; Muchorowski, K. ; Nowak, R. J. ; Pawlak, J. M. ; Pawlak, R. ; Tymieniecka, T. ; Wrńblewski, A. K. ; Zakrzewski, J. A. ; Adamus, M. ; Coldewey, C. ; Eisenberg, Y. ; Hochman, D. ; Karshon, U. ; Badgett, W. F. ; Chapin, D. ; Cross, R. ; Dasu, S. ; Foudas, C. ; Loveless, R. J. ; Mattingly, S. ; Reeder, D. D. ; Smith, W. H. ; Vaiciulis, A. ; Wodarczyk, M. ; Bhadra, S. ; Frisken, W. R. ; Khakzad, M. ; Schmidke, W. B. / Measurement of the diffractive structure function FD(4) 2 at HERA. In: European Physical Journal C. 1998 ; Vol. 1, No. 1-2. pp. 81-96.
@article{2cb0fa3e3b724fe99788aca50bd25790,
title = "Measurement of the diffractive structure function FD(4) 2 at HERA",
abstract = "This paper presents the first analysis of diffractive photon dissociation events in deep inelastic positron-proton scattering at HERA in which the proton in the final state is detected and its momentum measured. The events are selected by requiring a scattered proton in the ZEUS leading proton spectrometer (LPS) with xL > 0.97, where xL is the fraction of the incoming proton beam momentum carried by the scattered proton. The use of the LPS significantly reduces the contamination from events with diffractive dissociation of the proton into low mass states and allows a direct measurement of t, the square of the four-momentum exchanged at the proton vertex. The dependence of the cross section on t is measured in the interval 0.073 < \t\ < 0.4 GeV2 and is found to be described by an exponential shape with the slope parameter b = 7.2 ± 1.1(stat.)+0.7 -0.9(syst.) GeV-2. The diffractive structure function FD(4) 2 is presented as a function of xIP, ≃ 1 - xL and β, the momentum fraction of the struck quark with respect to xIP, and averaged over the t interval 0.073 < \t\ < 0.4 GeV2 and the photon virtuality range 5 < Q2 < 20 GeV2. In the kinematic range 4 x 10-4 < xIP < 0.03 and 0.015 < β < 0.5, the xIP dependence of FD(4) 2 is fitted with a form (1/xIP)a , yielding a = 1.00 ± 0.09 (stat.)+0.11 -0.05(syst.). Upon integration over t, the structure function FD(3) 2 is determined in a kinematic range extending to higher xIP and lower β compared to our previous analysis; the results are discussed within the framework of Regge theory.",
author = "J. Breitweg and M. Derrick and D. Krakauer and S. Magill and D. Mikunas and B. Musgrave and J. Repond and R. Stanek and Talaga, {R. L.} and R. Yoshida and H. Zhang and Mattingly, {M. C K} and F. Anselmo 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 G. Castellini and M. Chiarini and L. Cifarelli and F. Cindolo and A. Contin and M. Corradi and {de Pasquale}, S. and I. Gialas and P. Giusti and G. Iacobucci and G. Laurenti and G. Levi and A. Margotti and T. Massam and R. Nania and C. Nemoz and F. Palmonari and A. Pesci and A. Polini and F. Ricci and G. Sartorelli and {Zamora Garcia}, Y. and A. Zichichi and C. Amelung and A. Bornheim and I. Brock and K. Cob{\"o}ken and J. Crittenden and R. Deffner and M. Eckert and M. Grothe and H. Hartmann and K. Heinloth and L. Heinz and E. Hilger and Jakob, {H. P.} and Katz, {U. F.} and R. Kerger and E. Paul and M. Pfeiffer and Ch Rembser and J. Stamm and R. Wedemeyer and H. Wieber and Bailey, {D. S.} and S. Campbell-Robson and Cottingham, {W. N.} and B. Foster and R. Hall-Wilton and Hayes, {M. E.} and Heath, {G. P.} and Heath, {H. F.} and McFall, {J. D.} and D. Piccioni and Roff, {D. G.} and Tapper, {R. J.} and M. Arneodo and R. Ayad and M. Capua and A. Garfagnini and L. Iannotti and M. Schioppa and G. Susinno and Kim, {J. Y.} and Lee, {J. H.} and Lim, {I. T.} and Pac, {M. Y.} and A. Caldwell and N. Cartiglia and Z. Jing and W. Liu and B. Mellado and Parsons, {J. A.} and S. Ritz and S. Sampson and F. Sciulli and Straub, {P. B.} and Q. Zhu and P. Borzemski and J. Chwastowski and A. Eskreys and J. Figiel and K. Klimek and Przybycień, {M. B.} and L. Zawiejski and L. Adamczyk and B. Bednarek and M. Bukowy and K. Jeleń and D. Kisielewska and T. Kowalski and M. Przybycień and E. Rulikowska-Zarȩbska and L. Suszycki and J. Zaja{\cc} and Z. Dulinński and A. Kotanński and G. Abbiendi and Bauerdick, {L. A T} and U. Behrens and H. Beier and Bienlein, {J. K.} and G. Cases and O. Deppe and K. Desler and G. Drews and U. Fricke and Gilkinson, {D. J.} and C. Glasman and P. G{\"o}ttlicher and T. Haas and W. Hain and D. Hasell and Johnson, {K. F.} and M. Kasemann and W. Koch and U. K{\"o}tz and H. Kowalski and J. Labs and L. Lindemann and B. L{\"u}hr and M. L{\"o}we and O. Mańczak and J. Milewski and T. Monteiro and Ng, {J. S T} and D. Notz and K. Ohrenberg and Park, {I. H.} and A. Pellegrino and F. Pelucchi and K. Piotrzkowski and M. Roco and M. Rohde and J. Roldńn and Ryan, {J. J.} and Savin, {A. A.} and U. Schneekloth and F. Selonke and B. Surrow and E. Tassi and T. Vo{\ss} and D. Westphal and G. Wolf and U. Wollmer and C. Youngman and Zarnecki, {A. F.} and W. Zeuner and Burow, {B. D.} and Grabosch, {H. J.} and A. Meyer and S. Schlenstedt and G. Barbagli and E. Gallo and P. Pelfer and G. Anzivino and G. Maccarrone and L. Votano and A. Bamberger and S. Eisenhardt and P. Markun and T. Trefzger and S. W{\"o}lfle and Bromley, {J. T.} and Brook, {N. H.} and Bussey, {P. J.} and Doyle, {A. T.} and N. Macdonald and Saxon, {D. H.} and Sinclair, {L. E.} and E. Strickland and R. Waugh and I. Bohnet and N. Gendner and U. Holm and A. Meyer-Larsen and H. Salehi and K. Wick and Gladilin, {L. K.} and D. Horstmann and D. K{\cc}ira and R. Klanner and E. Lohrmann and G. Poelz and W. Schott and F. Zetsche and Bacon, {T. C.} and I. Butterworth and Cole, {J. E.} and G. Howell and Hung, {B. H Y} and L. Lamberti and Long, {K. R.} and Miller, {D. B.} and N. Pavel and A. Prinias and Sedgbeer, {J. K.} and D. Sideris and U. Mallik and Wang, {S. M.} and Wu, {J. T.} and P. Cloth and D. Filges and Fleck, {J. I.} and T. Ishii and M. Kuze and I. Suzuki and K. Tokushuku and S. Yamada and K. Yamauchi and Y. Yamazaki and Hong, {S. J.} and Lee, {S. B.} and Nam, {S. W.} and Park, {Sung Keun} and F. Barreiro and Fern{\'a}ndez, {J. P.} and G. Garc{\'i}a and R. Graciani and Hernandez, {J. M.} and L. Herv{\'a}s and L. Labarga and M. Mart{\'i}nez and {del Peso}, J. and J. Puga and J. Terr{\'o}n and {de Troc{\'o}niz}, {J. F.} and F. Corriveau and Hanna, {D. S.} and J. Hartmann and Hung, {L. W.} and Murray, {W. N.} and A. Ochs and M. Riveline and Stairs, {D. G.} and M. St-Laurent and R. Ullmann and T. Tsurugai and V. Bashkirov and Dolgoshein, {B. A.} and A. Stifutkin and Bashindzhagyan, {G. L.} and Ermolov, {P. F.} and Golubkov, {Y. A.} 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 Zotkin, {S. A.} and C. Bokel and M. Botje and N. Br{\"u}mmer and F. Chlebana and J. Engelen and E. Koffeman and P. Kooijman and {van Sighem}, A. and H. Tiecke and N. Tuning and W. Verkerke and J. Vossebeld and M. Vreeswijk and L. Wiggers and {de Wolf}, E. and D. Acosta and B. Bylsma and Durkin, {L. S.} and J. Gilmore and Ginsburg, {C. M.} and Kim, {C. L.} and Ling, {T. Y.} and P. Nylander and Romanowski, {T. A.} and Blaikley, {H. E.} and Cashmore, {R. J.} and Cooper-Sarkar, {A. M.} and Devenish, {R. C E} and Edmonds, {J. K.} and J. Gro{\ss}e-Knetter and N. Harnew and M. Lancaster and C. Nath and Noyes, {V. A.} and A. Quadt and O. Ruske and Tickner, {J. R.} and H. Uijterwaal and R. Walczak and Waters, {D. S.} and A. Bertolin and R. Brugnera and R. Carlin and {Dal Corso}, F. and U. Dosselli and S. Limentani and M. Morandin and M. Posocco and L. Stanco and R. Stroili and C. Voci and J. Bulmahn and Oh, {B. Y.} and Okrasiński, {J. R.} and Toothacker, {W. S.} and Whitmore, {J. J.} and Y. Iga and G. D'Agostini and G. Marini and A. Nigro and M. Raso and Hart, {J. C.} and McCubbin, {N. A.} and Shah, {T. P.} and E. Barberis and D. Epperson and C. Heusch and Rahn, {J. T.} and Sadrozinski, {H. F W} and A. Seiden and R. Wichmann and Williams, {D. C.} and O. Schwarzer and Walenta, {A. H.} and H. Abramowicz and G. Briskin and S. Dagan and S. Kananov and A. Levy and T. Abe and T. Fusayasu and M. Inuzuka and K. Nagano and K. Umemori and T. Yamashita and R. Hamatsu and T. Hirose and K. Homma and S. Kitamura and T. Matsushita and R. Cirio and M. Costa and Ferrero, {M. I.} and S. Maselli and V. Monaco and C. Peroni and Petrucci, {M. C.} and M. Ruspa and R. Sacchi and A. Solano and A. Staiano and M. Dardo and Bailey, {D. C.} and Fagerstroem, {C. P.} and R. Galea and Hartner, {G. F.} and Joo, {K. K.} and Levman, {G. M.} and Martin, {J. F.} and Orr, {R. S.} and S. Polenz and A. Sabetfakhri and D. Simmons and Teuscher, {R. J.} and Butterworth, {J. M.} and Catterall, {C. D.} and Jones, {T. W.} and Lane, {J. B.} and Saunders, {R. L.} and J. Shulman and Sutton, {M. R.} and M. Wing and J. Ciborowski and G. Grzelak and M. Kasprzak and K. Muchorowski and Nowak, {R. J.} and Pawlak, {J. M.} and R. Pawlak and T. Tymieniecka and Wrńblewski, {A. K.} and Zakrzewski, {J. A.} and M. Adamus and C. Coldewey and Y. Eisenberg and D. Hochman and U. Karshon and Badgett, {W. F.} and D. Chapin and R. Cross and S. Dasu and C. Foudas and Loveless, {R. J.} and S. Mattingly and Reeder, {D. D.} and Smith, {W. H.} and A. Vaiciulis and M. Wodarczyk and S. Bhadra and Frisken, {W. R.} and M. Khakzad and Schmidke, {W. B.}",
year = "1998",
month = "12",
day = "1",
language = "English",
volume = "1",
pages = "81--96",
journal = "European Physical Journal C",
issn = "1434-6044",
publisher = "Springer New York",
number = "1-2",

}

TY - JOUR

T1 - Measurement of the diffractive structure function FD(4) 2 at HERA

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AU - Mattingly, S.

AU - Reeder, D. D.

AU - Smith, W. H.

AU - Vaiciulis, A.

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AU - Schmidke, W. B.

PY - 1998/12/1

Y1 - 1998/12/1

N2 - This paper presents the first analysis of diffractive photon dissociation events in deep inelastic positron-proton scattering at HERA in which the proton in the final state is detected and its momentum measured. The events are selected by requiring a scattered proton in the ZEUS leading proton spectrometer (LPS) with xL > 0.97, where xL is the fraction of the incoming proton beam momentum carried by the scattered proton. The use of the LPS significantly reduces the contamination from events with diffractive dissociation of the proton into low mass states and allows a direct measurement of t, the square of the four-momentum exchanged at the proton vertex. The dependence of the cross section on t is measured in the interval 0.073 < \t\ < 0.4 GeV2 and is found to be described by an exponential shape with the slope parameter b = 7.2 ± 1.1(stat.)+0.7 -0.9(syst.) GeV-2. The diffractive structure function FD(4) 2 is presented as a function of xIP, ≃ 1 - xL and β, the momentum fraction of the struck quark with respect to xIP, and averaged over the t interval 0.073 < \t\ < 0.4 GeV2 and the photon virtuality range 5 < Q2 < 20 GeV2. In the kinematic range 4 x 10-4 < xIP < 0.03 and 0.015 < β < 0.5, the xIP dependence of FD(4) 2 is fitted with a form (1/xIP)a , yielding a = 1.00 ± 0.09 (stat.)+0.11 -0.05(syst.). Upon integration over t, the structure function FD(3) 2 is determined in a kinematic range extending to higher xIP and lower β compared to our previous analysis; the results are discussed within the framework of Regge theory.

AB - This paper presents the first analysis of diffractive photon dissociation events in deep inelastic positron-proton scattering at HERA in which the proton in the final state is detected and its momentum measured. The events are selected by requiring a scattered proton in the ZEUS leading proton spectrometer (LPS) with xL > 0.97, where xL is the fraction of the incoming proton beam momentum carried by the scattered proton. The use of the LPS significantly reduces the contamination from events with diffractive dissociation of the proton into low mass states and allows a direct measurement of t, the square of the four-momentum exchanged at the proton vertex. The dependence of the cross section on t is measured in the interval 0.073 < \t\ < 0.4 GeV2 and is found to be described by an exponential shape with the slope parameter b = 7.2 ± 1.1(stat.)+0.7 -0.9(syst.) GeV-2. The diffractive structure function FD(4) 2 is presented as a function of xIP, ≃ 1 - xL and β, the momentum fraction of the struck quark with respect to xIP, and averaged over the t interval 0.073 < \t\ < 0.4 GeV2 and the photon virtuality range 5 < Q2 < 20 GeV2. In the kinematic range 4 x 10-4 < xIP < 0.03 and 0.015 < β < 0.5, the xIP dependence of FD(4) 2 is fitted with a form (1/xIP)a , yielding a = 1.00 ± 0.09 (stat.)+0.11 -0.05(syst.). Upon integration over t, the structure function FD(3) 2 is determined in a kinematic range extending to higher xIP and lower β compared to our previous analysis; the results are discussed within the framework of Regge theory.

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M3 - Article

VL - 1

SP - 81

EP - 96

JO - European Physical Journal C

JF - European Physical Journal C

SN - 1434-6044

IS - 1-2

ER -