Dissociation of virtual photons in events with a leading proton at HERA

被引:97
作者
Chekanov, S
Derrick, M
Loizides, JH
Magill, S
Miglioranzi, S
Musgrave, B
Repond, J
Yoshida, R
Mattingly, MCK
Pavel, N
Antonioli, P
Bari, G
Basile, M
Bellagamba, L
Boscherini, D
Bruni, A
Bruni, G
Romeo, GC
Cifarelli, L
Cindolo, F
Contin, A
Corradi, M
De Pasquale, S
Giusti, P
Iacobucci, G
Margotti, A
Massam, T
Montanari, A
Nania, R
Palmonari, F
Pesci, A
Polini, A
Rinaldi, L
Sartorelli, G
Zichichi, A
Aghuzumtsyan, G
Bartsch, D
Brock, I
Goers, S
Hartmann, H
Hilger, E
Irrgang, P
Jakob, HP
Kind, O
Meyer, U
Paul, E
Rautenberg, J
Renner, R
Tandler, J
Voss, KC
机构
[1] Argonne Natl Lab, Argonne, IL 60439 USA
[2] Andrews Univ, Berrien Springs, MI 49104 USA
[3] Humboldt Univ, Inst Phys, Berlin, Germany
[4] Univ Bologna, Bologna, Italy
[5] Ist Nazl Fis Nucl, I-40126 Bologna, Italy
[6] Univ Bonn, Inst Phys, D-5300 Bonn, Germany
[7] Univ Bristol, HH Wills Phys Lab, Bristol BS8 1TL, Avon, England
[8] Univ Calabria, Dept Phys, I-87036 Cosenza, Italy
[9] Ist Nazl Fis Nucl, Cosenza, Italy
[10] Chonnam Natl Univ, Kwangju, South Korea
[11] Columbia Univ, Nevis Labs, Irvington, NY 10027 USA
[12] Inst Nucl Phys, Krakow, Poland
[13] AGH Univ Sci & Technol, Fac Phys & Nucl Tech, Krakow, Poland
[14] Jagiellonian Univ, Dept Phys, Krakow, Poland
[15] DESY, D-2000 Hamburg, Germany
[16] DESY, Zeuthen, Germany
[17] Univ Florence, Florence, Italy
[18] Ist Nazl Fis Nucl, I-50125 Florence, Italy
[19] Univ Freiburg, Fak Phys, D-7800 Freiburg, Germany
[20] Univ Glasgow, Dept Phys & Astron, Glasgow, Lanark, Scotland
[21] Univ Aegean, Dept Engn Management & Finance, Mitilini, Greece
[22] Univ Hamburg, Inst Expt Phys, Hamburg, Germany
[23] Univ London Imperial Coll Sci Technol & Med, High Energy Nucl Phys Grp, London, England
[24] Forschungszentrum Julich, Inst Kernphys, D-5170 Julich, Germany
[25] Natl Lab High Energy Phys, KEK, Inst Particle & Nucl Studies, Tsukuba, Ibaraki 305, Japan
[26] Minist Educ & Sci Kazakhstan, Inst Phys & Technol, Alma Ata, Kazakhstan
[27] Kyungpook Natl Univ, Ctr High Energy Phys, Taegu, South Korea
[28] Catholic Univ Louvain, Inst Phys Nucl, B-1348 Louvain, Belgium
[29] Univ Autonoma Madrid, Dept Fis Teor, Madrid, Spain
[30] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada
[31] Meiji Gakuin Univ, Fac Gen Educ, Yokohama, Kanagawa, Japan
[32] Moscow Engn Phys Inst, Moscow 115409, Russia
[33] Moscow MV Lomonosov State Univ, Inst Nucl Phys, Moscow, Russia
[34] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany
[35] NIKHEF H, NL-1009 DB Amsterdam, Netherlands
[36] Univ Amsterdam, Amsterdam, Netherlands
[37] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA
[38] Univ Oxford, Dept Phys, Oxford, England
[39] Univ Padua, Dipartimento Fis, Padua, Italy
[40] Ist Nazl Fis Nucl, Padua, Italy
[41] Penn State Univ, Dept Phys, University Pk, PA 16802 USA
[42] Polytech Univ, Sagamihara, Kanagawa, Japan
[43] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy
[44] Ist Nazl Fis Nucl, Rome, Italy
[45] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England
[46] Univ Calif Santa Cruz, Santa Cruz, CA 95064 USA
[47] Ewha Womans Univ, Dept Phys, Seoul, South Korea
[48] Tel Aviv Univ, Raymond & Beverly Sackler Fac Exact Sci, Sch Phys, IL-69978 Tel Aviv, Israel
[49] Tokyo Inst Technol, Dept Phys, Tokyo 152, Japan
[50] Univ Tokyo, Dept Phys, Tokyo 113, Japan
来源
EUROPEAN PHYSICAL JOURNAL C | 2004年 / 38卷 / 01期
关键词
D O I
10.1140/epjc/s2004-02047-4
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
The ZEUS detector has been used to study dissociation of virtual photons in events with a leading proton, gamma*p --> Xp, in e(+)p collisions at HERA. The data cover photon virtualities in two ranges, 0.03 < Q(2) < 0.60 GeV2 and 2 < Q(2) < 100 GeV2, with M-X > 1.5 GeV, where M-X is the mass of the hadronic final state, X. Events were required to have a leading proton, detected in the ZEUS leading proton spectrometer, carrying at least 90% of the incoming proton energy. The cross section is presented as a function of t, the squared four-momentum transfer at the proton vertex, Phi, the azimuthal angle between the positron scattering plane and the proton scattering plane, and Q(2). The data are presented in terms of the diffractive structure function, F-2(D(3)). A next-to-leading-order QCD fit to the higher-Q(2) data set and to previously published diffractive charm production data is presented.
引用
收藏
页码:43 / 67
页数:25
相关论文
共 74 条
[1]  
Abramowicz H., 2000, International Journal of Modern Physics A, V15, P495, DOI 10.1142/S0217751X00005292
[2]   NEURAL-NETWORK-BASED ELECTRON IDENTIFICATION IN THE ZEUS CALORIMETER [J].
ABRAMOWICZ, H ;
CALDWELL, A ;
SINKUS, R .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1995, 365 (2-3) :508-517
[3]  
ABRAMOWICZ H, 1997, DESY97251HEPPH971241
[4]   Photoproduction with a leading proton at HERA [J].
Adloff, C ;
Andreev, V ;
Andrieu, B ;
Anthonis, T ;
Arkadov, V ;
Astvatsatourov, A ;
Ayyaz, I ;
Babaev, A ;
Bähr, J ;
Baranov, P ;
Barrelet, E ;
Bartel, W ;
Bate, P ;
Beglarian, A ;
Behnke, O ;
Beier, C ;
Belousov, A ;
Benisch, T ;
Berger, C ;
Berndt, T ;
Bizot, JC ;
Boudry, V ;
Braunschweig, W ;
Brisson, V ;
Bröker, HB ;
Brown, DP ;
Brückner, W ;
Bruel, P ;
Bruncko, D ;
Bürger, J ;
Büsser, FW ;
Bunyatyan, A ;
Burkhardt, H ;
Burrage, A ;
Buschhorn, G ;
Campbell, AJ ;
Cao, J ;
Carli, T ;
Caron, S ;
Chabert, E ;
Clarke, D ;
Clerbaux, B ;
Collard, C ;
Contreras, JG ;
Coppens, YR ;
Coughlan, JA ;
Cousinou, MC ;
Cox, BE ;
Cozzika, G ;
Cvach, J .
NUCLEAR PHYSICS B, 2001, 619 (1-3) :3-21
[5]   Inclusive measurement of diffractive deep-inelastic ep scattering [J].
Adloff, C ;
Aid, S ;
Anderson, M ;
Andreev, V ;
Andrieu, B ;
Arkadov, V ;
Arndt, C ;
Ayyaz, I ;
Bahr, J ;
Ban, J ;
Baranov, P ;
Barrelet, E ;
Barschke, R ;
Bartel, W ;
Bassler, U ;
Beck, M ;
Babaev, A ;
Behrend, HJ ;
Beier, C ;
Belousov, A ;
Berger, C ;
Bernardi, G ;
Bertrand-Coremans, G ;
Beyer, R ;
Biddulph, P ;
Bizot, JC ;
Borras, K ;
Botterweck, F ;
Boudry, V ;
Bourov, S ;
Braemer, A ;
Braunschweig, W ;
Brisson, V ;
Brown, DP ;
Bruckner, W ;
Bruel, P ;
Bruncko, D ;
Brune, C ;
Burger, J ;
Busser, FW ;
Buniatian, A ;
Burke, S ;
Buschhorn, G ;
Calvet, D ;
Campbell, AJ ;
Carli, T ;
Charlet, M ;
Clarke, D ;
Clerbaux, B ;
Cocks, S .
ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1997, 76 (04) :613-629
[6]   CONSTRUCTION AND BEAM TEST OF THE ZEUS FORWARD AND REAR CALORIMETER [J].
ANDRESEN, A ;
BAMBERGER, A ;
BARGENDE, A ;
BARREIRO, F ;
BEHRENS, U ;
BENTVELSEN, S ;
BRKIC, M ;
BUROW, B ;
CALDWELL, A ;
CASES, G ;
CORRIVEAU, F ;
CRITTENDEN, JA ;
DAKE, A ;
DANNEMANN, A ;
DAWSON, J ;
DIERKS, K ;
DREWS, G ;
ENGELEN, J ;
FAWCETT, H ;
FRISKEN, W ;
FURTJES, A ;
GILKINSON, D ;
HAGGE, L ;
HAMATSU, R ;
HANNA, D ;
HARTMANN, J ;
HASEGAWA, T ;
HASELL, D ;
HAZUMI, M ;
HERVAS, L ;
HILGER, E ;
HOLM, U ;
ISHII, T ;
DEJONG, P ;
KAMMERLOCHER, H ;
KASAI, S ;
KITAMURA, S ;
KLANNER, R ;
KOOIJMAN, P ;
KOTZ, U ;
KRAMER, M ;
KREBS, B ;
KROGER, W ;
KRUGER, J ;
KUZE, M ;
LEVMAN, G ;
LINDENBERG, T ;
MARTIN, J ;
MAYER, J ;
VANDERLUGT, H .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1991, 309 (1-2) :101-142
[7]  
Andruszków J, 2001, ACTA PHYS POL B, V32, P2025
[8]  
Andruszkow J., 1992, DESY92066
[9]   Some tests for the helicity structure of the Pomeron in ep collisions [J].
Arens, T ;
Nachtmann, O ;
Diehl, M ;
Landshoff, PV .
ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1997, 74 (04) :651-669
[10]   The presampler for the forward and rear calorimeter in the ZEUS detector [J].
Bamberger, A ;
Bornheim, A ;
Crittenden, J ;
Grabosch, HJ ;
Grothe, M ;
Hervas, L ;
Hilger, E ;
Holm, U ;
Horstmann, D ;
Kaufmann, V ;
Kharchilava, A ;
Kotz, U ;
Kummerow, D ;
Mallik, U ;
Meyer, A ;
Nowoczyn, M ;
Ossowski, R ;
Schlenstedt, S ;
Tiecke, H ;
Verkerke, W ;
Vossebeld, J ;
Vreeswijk, M ;
Wang, SM ;
Wu, J .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1996, 382 (03) :419-429