Search for lepton-flavor violation in e+p collisions at DESY HERA

S. Chekanov, M. Derrick, D. Krakauer, S. Magill, B. Musgrave, A. Pellegrino, J. Repond, 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, F. Cindolo, A. Contin & 353 others 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, D. Bartsch, I. Brock, J. Crittenden, S. Goers, H. Hartmann, E. Hilger, P. Irrgang, H. P. Jakob, A. Kappes, U. F. Katz, R. Kerger, O. Kind, E. Paul, J. Rautenberg, R. Renner, H. Schnurbusch, A. Stifutkin, J. Tandler, K. C. Voss, A. Weber, H. Wessoleck, D. S. Bailey, N. H. Brook, J. E. Cole, B. Foster, G. P. Heath, H. F. Heath, S. Robins, E. Rodrigues, J. Scott, R. J. Tapper, M. Wing, 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, M. Helbich, X. Liu, B. Mellado, S. Paganis, W. B. Schmidke, F. Sciulli, J. Chwastowski, A. Eskreys, J. Figiel, K. Olkiewicz, M. B. Przybycień, P. Stopa, L. Zawiejski, B. Bednarek, I. Grabowska-Bold, K. Jeleń, D. Kisielewska, A. M. Kowal, M. Kowal, T. Kowalski, B. Mindur, M. Przybycień, E. Rulikowska-Zarebska, L. Suszycki, D. Szuba, J. Szuba, A. Kotański, W. Slomiński, L. A T Bauerdick, U. Behrens, K. Borras, V. Chiochia, D. Dannheim, K. Desler, G. Drews, J. Fourletova, A. Fox-Murphy, U. Fricke, A. Geiser, F. Goebel, P. Göttlicher, R. Graciani, T. Haas, W. Hain, G. F. Hartner, S. Hillert, U. Kötz, H. Kowalski, H. Labes, D. Lelas, B. Löhr, R. Mankel, J. Martens, M. Martínez, M. Moritz, D. Notz, M. C. Petrucci, A. Polini, U. Schneekloth, F. Selonke, S. Stonjek, B. Surrow, J. J. Whitmore, R. Wichmann, G. Wolf, C. Youngman, W. Zeuner, C. Coldewey, A. Lopez-Duran Viani, A. Meyer, S. Schlenstedt, G. Barbagli, E. Gallo, C. Genta, P. G. Pelfer, A. Bamberger, A. Benen, N. Coppola, P. Markun, H. Raach, S. Wölfle, M. Bell, P. J. Bussey, A. T. Doyle, C. Glasman, S. Hanlon, S. W. Lee, A. Lupi, G. J. McCance, D. H. Saxon, I. O. Skillicorn, B. Bodmann, U. Holm, H. Salehi, K. Wick, A. Ziegler, Ar Ziegler, T. Carli, I. Gialas, K. Klimek, E. Lohrmann, M. Milite, C. Collins-Tooth, C. Foudas, R. Gonçalo, K. R. Long, F. Metlica, D. B. Miller, A. D. Tapper, R. Walker, P. Cloth, D. Filges, 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, A. Bertolin, F. Corriveau, A. Ochs, S. Padhi, D. G. Stairs, M. St-Laurent, T. Tsurugai, A. Antonov, V. Bashkirov, P. Danilov, B. A. Dolgoshein, D. Gladkov, V. Sosnovtsev, S. Suchkov, R. K. Dementiev, P. F. Ermolov, Yu A. Golubkov, I. I. Katkov, L. A. Khein, N. A. Korotkova, I. A. Korzhavina, V. A. Kuzmin, B. B. Levchenko, O. Y. Lukina, A. S. Proskuryakov, L. M. Shcheglova, A. N. Solomin, N. N. Vlasov, S. A. Zotkin, C. Bokel, J. Engelen, S. Grijpink, E. Koffeman, P. Kooijman, E. Maddox, S. Schagen, E. Tassi, H. Tiecke, N. Tuning, J. J. Velthuis, L. Wiggers, E. de Wolf, N. Brümmer, 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. Ferrando, T. Matsushita, M. Rigby, O. Ruske, M. R. Sutton, R. Walczak, R. Brugnera, R. Carlin, F. Dal Corso, S. Dusini, A. Garfagnini, S. Limentani, A. Longhin, A. Parenti, M. Posocco, L. Stanco, M. Turcato, L. Adamczyk, B. Y. Oh, P. R B Saull, Y. Iga, G. D'Agostini, G. Marini, A. Nigro, C. Cormack, J. C. Hart, N. A. McCubbin, C. Heusch, 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, R. Galea, T. Koop, G. M. Levman, J. F. Martin, A. Mirea, A. Sabetfakhri, J. M. Butterworth, C. Gwenlan, R. Hall-Wilton, M. E. Hayes, E. A. Heaphy, T. W. Jones, J. B. Lane, M. S. Lightwood, B. J. West, J. Ciborowski, R. Ciesielski, G. Grzelak, R. J. Nowak, J. M. Pawlak, B. Smalska, J. Sztuk, T. Tymieniecka, A. Ukleja, J. Ukleja, J. A. Zakrzewski, A. F. Zarnecki, M. Adamus, P. Plucinski, Y. Eisenberg, L. K. Gladilin, D. Hochman, U. Karshon, J. Breitweg, D. Chapin, R. Cross, D. Kçira, S. Lammers, D. D. Reeder, A. A. Savin, W. H. Smith, A. Deshpande, S. Dhawan, V. W. Hughes, P. B. Straub, S. Bhadra, C. D. Catterall, S. Fourletov, S. Menary, M. Soares, J. Standage

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

A search has been made for lepton-flavor-violating interactions of the type e+p→lX, where l denotes a μ or τ with high transverse momentum, at a center-of-mass energy √s of 300 GeV with an integrated luminosity of 47.7 pb-1 using the ZEUS detector at HERA. No evidence was found for lepton-flavor violation and constraints were derived on leptoquarks (LQs) that could mediate such interactions. For LQ masses below √s, limits are set on λeq1βlq, where λeq1 is the coupling of the LQ to an electron and a first-generation quark q1 and βlq is the branching ration of the LQ to l and a quark. For LQ masses exceeding √s, limits are set on the four-fermion contact-interaction term λeqα λlqβ/M2 LQ for leptoquarks that couple to an electron and a quark qα and also to l and a quark qβ. Some of the limits are also applicable to lepton-flavor-violating processes mediated by squarks in R-parity-violating supersymmetric models. In some cases involving heavy quarks and especially for l=τ, the ZEUS limits are the most stringent published to date.

Original languageEnglish
Article number092004
Pages (from-to)920041-9200416
Number of pages8280376
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume65
Issue number9 A
Publication statusPublished - 2002 May 1

Fingerprint

Quarks
leptons
Collision
quarks
collisions
Interaction
Electron
rations
interactions
Barycentre
transverse momentum
Parity
Fermions
center of mass
Branching
electric contacts
parity
electrons
Transverse
Momentum

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics
  • Mathematical Physics

Cite this

Chekanov, S., Derrick, M., Krakauer, D., Magill, S., Musgrave, B., Pellegrino, A., ... Standage, J. (2002). Search for lepton-flavor violation in e+p collisions at DESY HERA. Physical Review D - Particles, Fields, Gravitation and Cosmology, 65(9 A), 920041-9200416. [092004].

Search for lepton-flavor violation in e+p collisions at DESY HERA. / Chekanov, S.; Derrick, M.; Krakauer, D.; Magill, S.; Musgrave, B.; Pellegrino, A.; Repond, J.; 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.; Bartsch, D.; Brock, I.; Crittenden, J.; Goers, S.; Hartmann, H.; Hilger, E.; Irrgang, P.; Jakob, H. P.; Kappes, A.; Katz, U. F.; Kerger, R.; Kind, O.; Paul, E.; Rautenberg, J.; Renner, R.; Schnurbusch, H.; Stifutkin, A.; Tandler, J.; Voss, K. C.; Weber, A.; Wessoleck, H.; Bailey, D. S.; Brook, N. H.; Cole, J. E.; Foster, B.; Heath, G. P.; Heath, H. F.; Robins, S.; Rodrigues, E.; Scott, J.; Tapper, R. J.; Wing, M.; 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.; Helbich, M.; Liu, X.; Mellado, B.; Paganis, S.; Schmidke, W. B.; Sciulli, F.; Chwastowski, J.; Eskreys, A.; Figiel, J.; Olkiewicz, K.; Przybycień, M. B.; Stopa, P.; Zawiejski, L.; Bednarek, B.; Grabowska-Bold, I.; Jeleń, K.; Kisielewska, D.; Kowal, A. M.; Kowal, M.; Kowalski, T.; Mindur, B.; Przybycień, M.; Rulikowska-Zarebska, E.; Suszycki, L.; Szuba, D.; Szuba, J.; Kotański, A.; Slomiński, W.; Bauerdick, L. A T; Behrens, U.; Borras, K.; Chiochia, V.; Dannheim, D.; Desler, K.; Drews, G.; Fourletova, J.; Fox-Murphy, A.; Fricke, U.; Geiser, A.; Goebel, F.; Göttlicher, P.; Graciani, R.; Haas, T.; Hain, W.; Hartner, G. F.; Hillert, S.; Kötz, U.; Kowalski, H.; Labes, H.; Lelas, D.; Löhr, B.; Mankel, R.; Martens, J.; Martínez, M.; Moritz, M.; Notz, D.; Petrucci, M. C.; Polini, A.; Schneekloth, U.; Selonke, F.; Stonjek, S.; Surrow, B.; Whitmore, J. J.; Wichmann, R.; Wolf, G.; Youngman, C.; Zeuner, W.; Coldewey, C.; Lopez-Duran Viani, A.; Meyer, A.; Schlenstedt, S.; Barbagli, G.; Gallo, E.; Genta, C.; Pelfer, P. G.; Bamberger, A.; Benen, A.; Coppola, N.; Markun, P.; Raach, H.; Wölfle, S.; Bell, M.; Bussey, P. J.; Doyle, A. T.; Glasman, C.; Hanlon, S.; Lee, S. W.; Lupi, A.; McCance, G. J.; Saxon, D. H.; Skillicorn, I. O.; Bodmann, B.; Holm, U.; Salehi, H.; Wick, K.; Ziegler, A.; Ziegler, Ar; Carli, T.; Gialas, I.; Klimek, K.; Lohrmann, E.; Milite, M.; Collins-Tooth, C.; Foudas, C.; Gonçalo, R.; Long, K. R.; Metlica, F.; Miller, D. B.; Tapper, A. D.; Walker, R.; Cloth, P.; Filges, D.; 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.; Bertolin, A.; Corriveau, F.; Ochs, A.; Padhi, S.; Stairs, D. G.; St-Laurent, M.; Tsurugai, T.; Antonov, A.; Bashkirov, V.; Danilov, P.; Dolgoshein, B. A.; Gladkov, D.; Sosnovtsev, V.; Suchkov, S.; Dementiev, R. K.; Ermolov, P. F.; Golubkov, Yu A.; Katkov, I. I.; Khein, L. A.; Korotkova, N. A.; Korzhavina, I. A.; Kuzmin, V. A.; Levchenko, B. B.; Lukina, O. Y.; Proskuryakov, A. S.; Shcheglova, L. M.; Solomin, A. N.; Vlasov, N. N.; Zotkin, S. A.; Bokel, C.; Engelen, J.; Grijpink, S.; Koffeman, E.; Kooijman, P.; Maddox, E.; Schagen, S.; Tassi, E.; Tiecke, H.; Tuning, N.; Velthuis, J. J.; Wiggers, L.; de Wolf, E.; Brümmer, N.; 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; Ferrando, J.; Matsushita, T.; Rigby, M.; Ruske, O.; Sutton, M. R.; Walczak, R.; Brugnera, R.; Carlin, R.; Dal Corso, F.; Dusini, S.; Garfagnini, A.; Limentani, S.; Longhin, A.; Parenti, A.; Posocco, M.; Stanco, L.; Turcato, M.; Adamczyk, L.; Oh, B. Y.; Saull, P. R B; Iga, Y.; D'Agostini, G.; Marini, G.; Nigro, A.; Cormack, C.; Hart, J. C.; McCubbin, N. A.; Heusch, 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.; Galea, R.; Koop, T.; Levman, G. M.; Martin, J. F.; Mirea, A.; Sabetfakhri, A.; Butterworth, J. M.; Gwenlan, C.; Hall-Wilton, R.; Hayes, M. E.; Heaphy, E. A.; Jones, T. W.; Lane, J. B.; Lightwood, M. S.; West, B. J.; Ciborowski, J.; Ciesielski, R.; Grzelak, G.; Nowak, R. J.; Pawlak, J. M.; Smalska, B.; Sztuk, J.; Tymieniecka, T.; Ukleja, A.; Ukleja, J.; Zakrzewski, J. A.; Zarnecki, A. F.; Adamus, M.; Plucinski, P.; Eisenberg, Y.; Gladilin, L. K.; Hochman, D.; Karshon, U.; Breitweg, J.; Chapin, D.; Cross, R.; Kçira, D.; Lammers, S.; Reeder, D. D.; Savin, A. A.; Smith, W. H.; Deshpande, A.; Dhawan, S.; Hughes, V. W.; Straub, P. B.; Bhadra, S.; Catterall, C. D.; Fourletov, S.; Menary, S.; Soares, M.; Standage, J.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 65, No. 9 A, 092004, 01.05.2002, p. 920041-9200416.

Research output: Contribution to journalArticle

Chekanov, S, Derrick, M, Krakauer, D, Magill, S, Musgrave, B, Pellegrino, A, Repond, J, 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, Bartsch, D, Brock, I, Crittenden, J, Goers, S, Hartmann, H, Hilger, E, Irrgang, P, Jakob, HP, Kappes, A, Katz, UF, Kerger, R, Kind, O, Paul, E, Rautenberg, J, Renner, R, Schnurbusch, H, Stifutkin, A, Tandler, J, Voss, KC, Weber, A, Wessoleck, H, Bailey, DS, Brook, NH, Cole, JE, Foster, B, Heath, GP, Heath, HF, Robins, S, Rodrigues, E, Scott, J, Tapper, RJ, Wing, M, Capua, M, Mastroberardino, A, Schioppa, M, Susinno, G, Jeoung, HY, Kim, JY, Lee, JH, Lim, IT, Ma, KJ, Pac, MY, Caldwell, A, Helbich, M, Liu, X, Mellado, B, Paganis, S, Schmidke, WB, Sciulli, F, Chwastowski, J, Eskreys, A, Figiel, J, Olkiewicz, K, Przybycień, MB, Stopa, P, Zawiejski, L, Bednarek, B, Grabowska-Bold, I, Jeleń, K, Kisielewska, D, Kowal, AM, Kowal, M, Kowalski, T, Mindur, B, Przybycień, M, Rulikowska-Zarebska, E, Suszycki, L, Szuba, D, Szuba, J, Kotański, A, Slomiński, W, Bauerdick, LAT, Behrens, U, Borras, K, Chiochia, V, Dannheim, D, Desler, K, Drews, G, Fourletova, J, Fox-Murphy, A, Fricke, U, Geiser, A, Goebel, F, Göttlicher, P, Graciani, R, Haas, T, Hain, W, Hartner, GF, Hillert, S, Kötz, U, Kowalski, H, Labes, H, Lelas, D, Löhr, B, Mankel, R, Martens, J, Martínez, M, Moritz, M, Notz, D, Petrucci, MC, Polini, A, Schneekloth, U, Selonke, F, Stonjek, S, Surrow, B, Whitmore, JJ, Wichmann, R, Wolf, G, Youngman, C, Zeuner, W, Coldewey, C, Lopez-Duran Viani, A, Meyer, A, Schlenstedt, S, Barbagli, G, Gallo, E, Genta, C, Pelfer, PG, Bamberger, A, Benen, A, Coppola, N, Markun, P, Raach, H, Wölfle, S, Bell, M, Bussey, PJ, Doyle, AT, Glasman, C, Hanlon, S, Lee, SW, Lupi, A, McCance, GJ, Saxon, DH, Skillicorn, IO, Bodmann, B, Holm, U, Salehi, H, Wick, K, Ziegler, A, Ziegler, A, Carli, T, Gialas, I, Klimek, K, Lohrmann, E, Milite, M, Collins-Tooth, C, Foudas, C, Gonçalo, R, Long, KR, Metlica, F, Miller, DB, Tapper, AD, Walker, R, Cloth, P, Filges, D, 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, Bertolin, A, Corriveau, F, Ochs, A, Padhi, S, Stairs, DG, St-Laurent, M, Tsurugai, T, Antonov, A, Bashkirov, V, Danilov, P, Dolgoshein, BA, Gladkov, D, Sosnovtsev, V, Suchkov, S, Dementiev, RK, Ermolov, PF, Golubkov, YA, Katkov, II, Khein, LA, Korotkova, NA, Korzhavina, IA, Kuzmin, VA, Levchenko, BB, Lukina, OY, Proskuryakov, AS, Shcheglova, LM, Solomin, AN, Vlasov, NN, Zotkin, SA, Bokel, C, Engelen, J, Grijpink, S, Koffeman, E, Kooijman, P, Maddox, E, Schagen, S, Tassi, E, Tiecke, H, Tuning, N, Velthuis, JJ, Wiggers, L, de Wolf, E, Brümmer, N, Bylsma, B, Durkin, LS, Gilmore, J, Ginsburg, CM, Kim, CL, Ling, TY, Boogert, S, Cooper-Sarkar, AM, Devenish, RCE, Ferrando, J, Matsushita, T, Rigby, M, Ruske, O, Sutton, MR, Walczak, R, Brugnera, R, Carlin, R, Dal Corso, F, Dusini, S, Garfagnini, A, Limentani, S, Longhin, A, Parenti, A, Posocco, M, Stanco, L, Turcato, M, Adamczyk, L, Oh, BY, Saull, PRB, Iga, Y, D'Agostini, G, Marini, G, Nigro, A, Cormack, C, Hart, JC, McCubbin, NA, Heusch, C, 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, Galea, R, Koop, T, Levman, GM, Martin, JF, Mirea, A, Sabetfakhri, A, Butterworth, JM, Gwenlan, C, Hall-Wilton, R, Hayes, ME, Heaphy, EA, Jones, TW, Lane, JB, Lightwood, MS, West, BJ, Ciborowski, J, Ciesielski, R, Grzelak, G, Nowak, RJ, Pawlak, JM, Smalska, B, Sztuk, J, Tymieniecka, T, Ukleja, A, Ukleja, J, Zakrzewski, JA, Zarnecki, AF, Adamus, M, Plucinski, P, Eisenberg, Y, Gladilin, LK, Hochman, D, Karshon, U, Breitweg, J, Chapin, D, Cross, R, Kçira, D, Lammers, S, Reeder, DD, Savin, AA, Smith, WH, Deshpande, A, Dhawan, S, Hughes, VW, Straub, PB, Bhadra, S, Catterall, CD, Fourletov, S, Menary, S, Soares, M & Standage, J 2002, 'Search for lepton-flavor violation in e+p collisions at DESY HERA', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 65, no. 9 A, 092004, pp. 920041-9200416.
Chekanov S, Derrick M, Krakauer D, Magill S, Musgrave B, Pellegrino A et al. Search for lepton-flavor violation in e+p collisions at DESY HERA. Physical Review D - Particles, Fields, Gravitation and Cosmology. 2002 May 1;65(9 A):920041-9200416. 092004.
Chekanov, S. ; Derrick, M. ; Krakauer, D. ; Magill, S. ; Musgrave, B. ; Pellegrino, A. ; Repond, J. ; 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. ; Bartsch, D. ; Brock, I. ; Crittenden, J. ; Goers, S. ; Hartmann, H. ; Hilger, E. ; Irrgang, P. ; Jakob, H. P. ; Kappes, A. ; Katz, U. F. ; Kerger, R. ; Kind, O. ; Paul, E. ; Rautenberg, J. ; Renner, R. ; Schnurbusch, H. ; Stifutkin, A. ; Tandler, J. ; Voss, K. C. ; Weber, A. ; Wessoleck, H. ; Bailey, D. S. ; Brook, N. H. ; Cole, J. E. ; Foster, B. ; Heath, G. P. ; Heath, H. F. ; Robins, S. ; Rodrigues, E. ; Scott, J. ; Tapper, R. J. ; Wing, M. ; 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. ; Helbich, M. ; Liu, X. ; Mellado, B. ; Paganis, S. ; Schmidke, W. B. ; Sciulli, F. ; Chwastowski, J. ; Eskreys, A. ; Figiel, J. ; Olkiewicz, K. ; Przybycień, M. B. ; Stopa, P. ; Zawiejski, L. ; Bednarek, B. ; Grabowska-Bold, I. ; Jeleń, K. ; Kisielewska, D. ; Kowal, A. M. ; Kowal, M. ; Kowalski, T. ; Mindur, B. ; Przybycień, M. ; Rulikowska-Zarebska, E. ; Suszycki, L. ; Szuba, D. ; Szuba, J. ; Kotański, A. ; Slomiński, W. ; Bauerdick, L. A T ; Behrens, U. ; Borras, K. ; Chiochia, V. ; Dannheim, D. ; Desler, K. ; Drews, G. ; Fourletova, J. ; Fox-Murphy, A. ; Fricke, U. ; Geiser, A. ; Goebel, F. ; Göttlicher, P. ; Graciani, R. ; Haas, T. ; Hain, W. ; Hartner, G. F. ; Hillert, S. ; Kötz, U. ; Kowalski, H. ; Labes, H. ; Lelas, D. ; Löhr, B. ; Mankel, R. ; Martens, J. ; Martínez, M. ; Moritz, M. ; Notz, D. ; Petrucci, M. C. ; Polini, A. ; Schneekloth, U. ; Selonke, F. ; Stonjek, S. ; Surrow, B. ; Whitmore, J. J. ; Wichmann, R. ; Wolf, G. ; Youngman, C. ; Zeuner, W. ; Coldewey, C. ; Lopez-Duran Viani, A. ; Meyer, A. ; Schlenstedt, S. ; Barbagli, G. ; Gallo, E. ; Genta, C. ; Pelfer, P. G. ; Bamberger, A. ; Benen, A. ; Coppola, N. ; Markun, P. ; Raach, H. ; Wölfle, S. ; Bell, M. ; Bussey, P. J. ; Doyle, A. T. ; Glasman, C. ; Hanlon, S. ; Lee, S. W. ; Lupi, A. ; McCance, G. J. ; Saxon, D. H. ; Skillicorn, I. O. ; Bodmann, B. ; Holm, U. ; Salehi, H. ; Wick, K. ; Ziegler, A. ; Ziegler, Ar ; Carli, T. ; Gialas, I. ; Klimek, K. ; Lohrmann, E. ; Milite, M. ; Collins-Tooth, C. ; Foudas, C. ; Gonçalo, R. ; Long, K. R. ; Metlica, F. ; Miller, D. B. ; Tapper, A. D. ; Walker, R. ; Cloth, P. ; Filges, D. ; 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. ; Bertolin, A. ; Corriveau, F. ; Ochs, A. ; Padhi, S. ; Stairs, D. G. ; St-Laurent, M. ; Tsurugai, T. ; Antonov, A. ; Bashkirov, V. ; Danilov, P. ; Dolgoshein, B. A. ; Gladkov, D. ; Sosnovtsev, V. ; Suchkov, S. ; Dementiev, R. K. ; Ermolov, P. F. ; Golubkov, Yu A. ; Katkov, I. I. ; Khein, L. A. ; Korotkova, N. A. ; Korzhavina, I. A. ; Kuzmin, V. A. ; Levchenko, B. B. ; Lukina, O. Y. ; Proskuryakov, A. S. ; Shcheglova, L. M. ; Solomin, A. N. ; Vlasov, N. N. ; Zotkin, S. A. ; Bokel, C. ; Engelen, J. ; Grijpink, S. ; Koffeman, E. ; Kooijman, P. ; Maddox, E. ; Schagen, S. ; Tassi, E. ; Tiecke, H. ; Tuning, N. ; Velthuis, J. J. ; Wiggers, L. ; de Wolf, E. ; Brümmer, N. ; 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 ; Ferrando, J. ; Matsushita, T. ; Rigby, M. ; Ruske, O. ; Sutton, M. R. ; Walczak, R. ; Brugnera, R. ; Carlin, R. ; Dal Corso, F. ; Dusini, S. ; Garfagnini, A. ; Limentani, S. ; Longhin, A. ; Parenti, A. ; Posocco, M. ; Stanco, L. ; Turcato, M. ; Adamczyk, L. ; Oh, B. Y. ; Saull, P. R B ; Iga, Y. ; D'Agostini, G. ; Marini, G. ; Nigro, A. ; Cormack, C. ; Hart, J. C. ; McCubbin, N. A. ; Heusch, 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. ; Galea, R. ; Koop, T. ; Levman, G. M. ; Martin, J. F. ; Mirea, A. ; Sabetfakhri, A. ; Butterworth, J. M. ; Gwenlan, C. ; Hall-Wilton, R. ; Hayes, M. E. ; Heaphy, E. A. ; Jones, T. W. ; Lane, J. B. ; Lightwood, M. S. ; West, B. J. ; Ciborowski, J. ; Ciesielski, R. ; Grzelak, G. ; Nowak, R. J. ; Pawlak, J. M. ; Smalska, B. ; Sztuk, J. ; Tymieniecka, T. ; Ukleja, A. ; Ukleja, J. ; Zakrzewski, J. A. ; Zarnecki, A. F. ; Adamus, M. ; Plucinski, P. ; Eisenberg, Y. ; Gladilin, L. K. ; Hochman, D. ; Karshon, U. ; Breitweg, J. ; Chapin, D. ; Cross, R. ; Kçira, D. ; Lammers, S. ; Reeder, D. D. ; Savin, A. A. ; Smith, W. H. ; Deshpande, A. ; Dhawan, S. ; Hughes, V. W. ; Straub, P. B. ; Bhadra, S. ; Catterall, C. D. ; Fourletov, S. ; Menary, S. ; Soares, M. ; Standage, J. / Search for lepton-flavor violation in e+p collisions at DESY HERA. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 2002 ; Vol. 65, No. 9 A. pp. 920041-9200416.
@article{1d2f654e57514c92b39c4b42f0575681,
title = "Search for lepton-flavor violation in e+p collisions at DESY HERA",
abstract = "A search has been made for lepton-flavor-violating interactions of the type e+p→lX, where l denotes a μ or τ with high transverse momentum, at a center-of-mass energy √s of 300 GeV with an integrated luminosity of 47.7 pb-1 using the ZEUS detector at HERA. No evidence was found for lepton-flavor violation and constraints were derived on leptoquarks (LQs) that could mediate such interactions. For LQ masses below √s, limits are set on λeq1βlq, where λeq1 is the coupling of the LQ to an electron and a first-generation quark q1 and βlq is the branching ration of the LQ to l and a quark. For LQ masses exceeding √s, limits are set on the four-fermion contact-interaction term λeqα λlqβ/M2 LQ for leptoquarks that couple to an electron and a quark qα and also to l and a quark qβ. Some of the limits are also applicable to lepton-flavor-violating processes mediated by squarks in R-parity-violating supersymmetric models. In some cases involving heavy quarks and especially for l=τ, the ZEUS limits are the most stringent published to date.",
author = "S. Chekanov and M. Derrick and D. Krakauer and S. Magill and B. Musgrave and A. Pellegrino and J. Repond 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 D. Bartsch and I. Brock and J. Crittenden and S. Goers and H. Hartmann 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 R. Renner and H. Schnurbusch and A. Stifutkin and J. Tandler and Voss, {K. C.} and A. Weber and H. Wessoleck and Bailey, {D. S.} 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. Wing 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 M. Helbich and X. Liu and B. Mellado and S. Paganis and Schmidke, {W. B.} and F. Sciulli and J. Chwastowski and A. Eskreys and J. Figiel and K. Olkiewicz and Przybycień, {M. B.} and P. Stopa and L. Zawiejski and B. Bednarek and I. Grabowska-Bold and K. Jeleń and D. Kisielewska and Kowal, {A. M.} and M. Kowal and T. Kowalski and B. Mindur and M. Przybycień and E. Rulikowska-Zarebska and L. Suszycki and D. Szuba and J. Szuba and A. Kotański and W. Slomiński and Bauerdick, {L. A T} and U. Behrens and K. Borras and V. Chiochia and D. Dannheim and K. Desler and G. Drews and J. Fourletova and A. Fox-Murphy and U. Fricke and A. Geiser and F. Goebel and P. G{\"o}ttlicher and R. Graciani and T. Haas and W. Hain and Hartner, {G. F.} and S. Hillert and U. K{\"o}tz and H. Kowalski and H. Labes and D. Lelas and B. L{\"o}hr and R. Mankel and J. Martens and M. Mart{\'i}nez and M. Moritz and D. Notz and Petrucci, {M. C.} and A. Polini and U. Schneekloth and F. Selonke and S. Stonjek and B. Surrow and Whitmore, {J. J.} and R. Wichmann and G. Wolf and C. Youngman and W. Zeuner and C. Coldewey and {Lopez-Duran Viani}, A. and A. Meyer and S. Schlenstedt and G. Barbagli and E. Gallo and C. Genta and Pelfer, {P. G.} and A. Bamberger and A. Benen and N. Coppola and P. Markun and H. Raach and S. W{\"o}lfle and M. Bell and Bussey, {P. J.} and Doyle, {A. T.} and C. Glasman and S. Hanlon and Lee, {S. W.} and A. Lupi and McCance, {G. J.} and Saxon, {D. H.} and Skillicorn, {I. O.} and B. Bodmann and U. Holm and H. Salehi and K. Wick and A. Ziegler and Ar Ziegler and T. Carli and I. Gialas and K. Klimek and E. Lohrmann and M. Milite and C. Collins-Tooth and C. Foudas and R. Gon{\cc}alo and Long, {K. R.} and F. Metlica and Miller, {D. B.} and Tapper, {A. D.} and R. Walker and P. Cloth and D. Filges 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 A. Bertolin and F. Corriveau and A. Ochs and S. Padhi and Stairs, {D. G.} and M. St-Laurent and T. Tsurugai and A. Antonov and V. Bashkirov and P. Danilov and Dolgoshein, {B. A.} and D. Gladkov and V. Sosnovtsev and S. Suchkov and Dementiev, {R. K.} and Ermolov, {P. F.} and Golubkov, {Yu A.} and Katkov, {I. I.} and Khein, {L. A.} and Korotkova, {N. A.} and Korzhavina, {I. A.} and Kuzmin, {V. A.} and Levchenko, {B. B.} 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 J. Engelen and S. Grijpink and E. Koffeman and P. Kooijman and E. Maddox and S. Schagen and E. Tassi and H. Tiecke and N. Tuning and Velthuis, {J. J.} and L. Wiggers and {de Wolf}, E. and N. Br{\"u}mmer 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. Ferrando and T. Matsushita and M. Rigby and O. Ruske and Sutton, {M. R.} and R. Walczak and R. Brugnera and R. Carlin and {Dal Corso}, F. and S. Dusini and A. Garfagnini and S. Limentani and A. Longhin and A. Parenti and M. Posocco and L. Stanco and M. Turcato and L. Adamczyk and Oh, {B. Y.} and Saull, {P. R B} 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 C. Heusch 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 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 R. Hall-Wilton and Hayes, {M. E.} and Heaphy, {E. A.} and Jones, {T. W.} and Lane, {J. B.} and Lightwood, {M. S.} and West, {B. J.} and J. Ciborowski and R. Ciesielski and G. Grzelak and Nowak, {R. J.} and Pawlak, {J. M.} and B. Smalska and J. Sztuk and T. Tymieniecka and A. Ukleja and J. Ukleja and Zakrzewski, {J. A.} and Zarnecki, {A. F.} and M. Adamus and P. Plucinski and Y. Eisenberg and Gladilin, {L. K.} and D. Hochman and U. Karshon and J. Breitweg and D. Chapin and R. Cross and D. K{\cc}ira and S. Lammers and Reeder, {D. D.} and Savin, {A. A.} and Smith, {W. H.} and A. Deshpande and S. Dhawan and Hughes, {V. W.} and Straub, {P. B.} and S. Bhadra and Catterall, {C. D.} and S. Fourletov and S. Menary and M. Soares and J. Standage",
year = "2002",
month = "5",
day = "1",
language = "English",
volume = "65",
pages = "920041--9200416",
journal = "Physical review D: Particles and fields",
issn = "0556-2821",
publisher = "American Institute of Physics Publising LLC",
number = "9 A",

}

TY - JOUR

T1 - Search for lepton-flavor violation in e+p collisions at DESY HERA

AU - Chekanov, S.

AU - Derrick, M.

AU - Krakauer, D.

AU - Magill, S.

AU - Musgrave, B.

AU - Pellegrino, A.

AU - Repond, J.

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 - Bartsch, D.

AU - Brock, I.

AU - Crittenden, J.

AU - Goers, S.

AU - Hartmann, H.

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 - Renner, R.

AU - Schnurbusch, H.

AU - Stifutkin, A.

AU - Tandler, J.

AU - Voss, K. C.

AU - Weber, A.

AU - Wessoleck, H.

AU - Bailey, D. S.

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 - Wing, M.

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 - Helbich, M.

AU - Liu, X.

AU - Mellado, B.

AU - Paganis, S.

AU - Schmidke, W. B.

AU - Sciulli, F.

AU - Chwastowski, J.

AU - Eskreys, A.

AU - Figiel, J.

AU - Olkiewicz, K.

AU - Przybycień, M. B.

AU - Stopa, P.

AU - Zawiejski, L.

AU - Bednarek, B.

AU - Grabowska-Bold, I.

AU - Jeleń, K.

AU - Kisielewska, D.

AU - Kowal, A. M.

AU - Kowal, M.

AU - Kowalski, T.

AU - Mindur, B.

AU - Przybycień, M.

AU - Rulikowska-Zarebska, E.

AU - Suszycki, L.

AU - Szuba, D.

AU - Szuba, J.

AU - Kotański, A.

AU - Slomiński, W.

AU - Bauerdick, L. A T

AU - Behrens, U.

AU - Borras, K.

AU - Chiochia, V.

AU - Dannheim, D.

AU - Desler, K.

AU - Drews, G.

AU - Fourletova, J.

AU - Fox-Murphy, A.

AU - Fricke, U.

AU - Geiser, A.

AU - Goebel, F.

AU - Göttlicher, P.

AU - Graciani, R.

AU - Haas, T.

AU - Hain, W.

AU - Hartner, G. F.

AU - Hillert, S.

AU - Kötz, U.

AU - Kowalski, H.

AU - Labes, H.

AU - Lelas, D.

AU - Löhr, B.

AU - Mankel, R.

AU - Martens, J.

AU - Martínez, M.

AU - Moritz, M.

AU - Notz, D.

AU - Petrucci, M. C.

AU - Polini, A.

AU - Schneekloth, U.

AU - Selonke, F.

AU - Stonjek, S.

AU - Surrow, B.

AU - Whitmore, J. J.

AU - Wichmann, R.

AU - Wolf, G.

AU - Youngman, C.

AU - Zeuner, W.

AU - Coldewey, C.

AU - Lopez-Duran Viani, A.

AU - Meyer, A.

AU - Schlenstedt, S.

AU - Barbagli, G.

AU - Gallo, E.

AU - Genta, C.

AU - Pelfer, P. G.

AU - Bamberger, A.

AU - Benen, A.

AU - Coppola, N.

AU - Markun, P.

AU - Raach, H.

AU - Wölfle, S.

AU - Bell, M.

AU - Bussey, P. J.

AU - Doyle, A. T.

AU - Glasman, C.

AU - Hanlon, S.

AU - Lee, S. W.

AU - Lupi, A.

AU - McCance, G. J.

AU - Saxon, D. H.

AU - Skillicorn, I. O.

AU - Bodmann, B.

AU - Holm, U.

AU - Salehi, H.

AU - Wick, K.

AU - Ziegler, A.

AU - Ziegler, Ar

AU - Carli, T.

AU - Gialas, I.

AU - Klimek, K.

AU - Lohrmann, E.

AU - Milite, M.

AU - Collins-Tooth, C.

AU - Foudas, C.

AU - Gonçalo, R.

AU - Long, K. R.

AU - Metlica, F.

AU - Miller, D. B.

AU - Tapper, A. D.

AU - Walker, R.

AU - Cloth, P.

AU - Filges, D.

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 - Bertolin, A.

AU - Corriveau, F.

AU - Ochs, A.

AU - Padhi, S.

AU - Stairs, D. G.

AU - St-Laurent, M.

AU - Tsurugai, T.

AU - Antonov, A.

AU - Bashkirov, V.

AU - Danilov, P.

AU - Dolgoshein, B. A.

AU - Gladkov, D.

AU - Sosnovtsev, V.

AU - Suchkov, S.

AU - Dementiev, R. K.

AU - Ermolov, P. F.

AU - Golubkov, Yu A.

AU - Katkov, I. I.

AU - Khein, L. A.

AU - Korotkova, N. A.

AU - Korzhavina, I. A.

AU - Kuzmin, V. A.

AU - Levchenko, B. B.

AU - Lukina, O. Y.

AU - Proskuryakov, A. S.

AU - Shcheglova, L. M.

AU - Solomin, A. N.

AU - Vlasov, N. N.

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PY - 2002/5/1

Y1 - 2002/5/1

N2 - A search has been made for lepton-flavor-violating interactions of the type e+p→lX, where l denotes a μ or τ with high transverse momentum, at a center-of-mass energy √s of 300 GeV with an integrated luminosity of 47.7 pb-1 using the ZEUS detector at HERA. No evidence was found for lepton-flavor violation and constraints were derived on leptoquarks (LQs) that could mediate such interactions. For LQ masses below √s, limits are set on λeq1βlq, where λeq1 is the coupling of the LQ to an electron and a first-generation quark q1 and βlq is the branching ration of the LQ to l and a quark. For LQ masses exceeding √s, limits are set on the four-fermion contact-interaction term λeqα λlqβ/M2 LQ for leptoquarks that couple to an electron and a quark qα and also to l and a quark qβ. Some of the limits are also applicable to lepton-flavor-violating processes mediated by squarks in R-parity-violating supersymmetric models. In some cases involving heavy quarks and especially for l=τ, the ZEUS limits are the most stringent published to date.

AB - A search has been made for lepton-flavor-violating interactions of the type e+p→lX, where l denotes a μ or τ with high transverse momentum, at a center-of-mass energy √s of 300 GeV with an integrated luminosity of 47.7 pb-1 using the ZEUS detector at HERA. No evidence was found for lepton-flavor violation and constraints were derived on leptoquarks (LQs) that could mediate such interactions. For LQ masses below √s, limits are set on λeq1βlq, where λeq1 is the coupling of the LQ to an electron and a first-generation quark q1 and βlq is the branching ration of the LQ to l and a quark. For LQ masses exceeding √s, limits are set on the four-fermion contact-interaction term λeqα λlqβ/M2 LQ for leptoquarks that couple to an electron and a quark qα and also to l and a quark qβ. Some of the limits are also applicable to lepton-flavor-violating processes mediated by squarks in R-parity-violating supersymmetric models. In some cases involving heavy quarks and especially for l=τ, the ZEUS limits are the most stringent published to date.

UR - http://www.scopus.com/inward/record.url?scp=4243379683&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=4243379683&partnerID=8YFLogxK

M3 - Article

VL - 65

SP - 920041

EP - 9200416

JO - Physical review D: Particles and fields

JF - Physical review D: Particles and fields

SN - 0556-2821

IS - 9 A

M1 - 092004

ER -