Elastic and proton-dissociative photoproduction of J/ψ mesons at HERA

被引：152

作者：

Alexa, C. ^{[6
]}

Andreev, V. ^{[26
]}

Baghdasaryan, A. ^{[39
]}

Baghdasaryan, S. ^{[39
]}

Bartel, W. ^{[12
]}

Begzsuren, K. ^{[36
]}

Belousov, A. ^{[26
]}

Belov, P. ^{[12
]}

Boudry, V. ^{[29
]}

Bozovic-Jelisavcic, I. ^{[2
]}

Brandt, G. ^{[43
]}

Brinkmann, M. ^{[12
]}

Brisson, V. ^{[28
]}

Britzger, D. ^{[12
]}

Buniatyan, A. ^{[15
]}

Bylinkin, A. ^{[25
,48
]}

Bystritskaya, L. ^{[25
]}

Campbell, A. J. ^{[12
]}

Cantun Avila, K. B. ^{[23
]}

Ceccopieri, F. ^{[4
,5
]}

Cerny, K. ^{[32
]}

Chekelian, V. ^{[27
]}

Contreras, J. G. ^{[23
]}

Cvach, J. ^{[31
]}

Dainton, J. B. ^{[19
]}

Daum, K. ^{[38
,44
]}

De Wolf, E. A. ^{[4
,5
]}

Diaconu, C. ^{[22
]}

Dobre, M. ^{[6
]}

Dodonov, V. ^{[14
]}

Dossanov, A. ^{[13
,27
]}

Eckerlin, G. ^{[12
]}

Egli, S. ^{[37
]}

Elsen, E. ^{[12
]}

Favart, L. ^{[4
,5
]}

Fedotov, A. ^{[25
]}

Felst, R. ^{[12
]}

Feltesse, J. ^{[11
]}

Ferencei, J. ^{[17
]}

Fischer, D. -J. ^{[12
]}

Fleischer, M. ^{[12
]}

Fomenko, A. ^{[26
]}

Gabathuler, E. ^{[19
]}

Gayler, J. ^{[12
]}

Ghazaryan, S. ^{[12
]}

Glazov, A. ^{[12
]}

Goerlich, L. ^{[8
]}

Gogitidze, N. ^{[26
]}

Gouzevitch, M. ^{[12
,45
]}

Grab, C. ^{[41
]}

机构：

[1] Phys Inst RWTH, Aachen, Germany

[2] Univ Belgrade, Vinca Inst Nucl Sci, Belgrade 1100, Serbia

[3] Univ Birmingham, Sch Phys & Astron, Birmingham, W Midlands, England

[4] Interuniv Inst High Energies ULB VUB, Brussels, Belgium

[5] Univ Antwerp, Antwerp, Belgium

[6] Natl Inst Phys & Nucl Engn NIPNE, Bucharest, Romania

[7] STFC, Rutherford Appleton Lab, Didcot, Oxon, England

[8] Inst Nucl Phys, Krakow, Poland

[9] TU Dortmund, Inst Phys, Dortmund, Germany

[10] Joint Inst Nucl Res, Dubna, Russia

[11] CEA, DSM Irfu, CE Saclay, Gif Sur Yvette, France

[12] DESY, Hamburg, Germany

[13] Univ Hamburg, Inst Expt Phys, Hamburg, Germany

[14] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany

[15] Heidelberg Univ, Inst Phys, Heidelberg, Germany

[16] Heidelberg Univ, Kirchhoff Inst Phys, Heidelberg, Germany

[17] Slovak Acad Sci, Inst Expt Phys, Kosice 04353, Slovakia

[18] Univ Lancaster, Dept Phys, Lancaster, England

[19] Univ Liverpool, Dept Phys, Liverpool L69 3BX, Merseyside, England

[20] Univ London, Sch Phys & Astron, London, England

[21] Lund Univ, Dept Phys, S-22362 Lund, Sweden

[22] Aix Marseille Univ, CPPM, CNRS, IN2P3, F-13288 Marseille, France

[23] CINVESTAV, Dept Fis Aplicada, Merida, Yucatan, Mexico

[24] CINVESTAV IPN, Dept Fis, Mexico City, DF, Mexico

[25] Inst Theoret & Expt Phys, Moscow 117259, Russia

[26] PN Lebedev Phys Inst, Moscow 117924, Russia

[27] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany

[28] Univ Paris 11, CNRS, LAL, IN2P3, F-91405 Orsay, France

[29] Ecole Polytech, CNRS, LLR, IN2P3, F-91128 Palaiseau, France

[30] Univ Montenegro, Fac Sci, Podgorica, Montenegro

[31] Acad Sci Czech Republ, Inst Phys, Prague, Czech Republic

[32] Charles Univ Prague, Fac Math & Phys, Prague, Czech Republic

[33] Univ Roma Tre, Dipartimento Fis, Rome, Italy

[34] INFN Roma 3, Rome, Italy

[35] Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, Sofia, Bulgaria

[36] Mongolian Acad Sci, Inst Phys & Technol, Ulaanbaatar, Mongolia

[37] Paul Scherrer Inst, Villigen, Switzerland

[38] Univ Wuppertal, Fachbereich C, Wuppertal, Germany

[39] Yerevan Phys Inst, Yerevan 375036, Armenia

[40] DESY, Zeuthen, Germany

[41] ETH, Inst Teilchenphys, Zurich, Switzerland

[42] Univ Zurich, Inst Phys, Zurich, Switzerland

[43] Univ Oxford, Dept Phys, Oxford, England

[44] Univ Wuppertal, Rechenzentrum, Wuppertal, Germany

[45] Univ Lyon 1, CNRS, IPNL, IN2P3, F-69622 Villeurbanne, France

[46] CERN, Geneva, Switzerland

[47] Ulaanbaatar Univ, Ulaanbaatar, Mongolia

[48] Moscow Inst Phys & Technol, Moscow, Russia

[49] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada

[50] Univ Savoie, LAPP, CNRS, IN2P3, Annecy Le Vieux, France

来源：

EUROPEAN PHYSICAL JOURNAL C | 2013年 / 73卷 / 06期

基金：

英国科学技术设施理事会; 俄罗斯基础研究基金会; 瑞士国家科学基金会;

关键词：

LIQUID ARGON CALORIMETER; DIFFRACTIVE PHOTOPRODUCTION; EXCLUSIVE ELECTROPRODUCTION; VECTOR-MESON; H1; DETECTOR; CALIBRATION; VERTEX;

D O I：

10.1140/epjc/s10052-013-2466-y

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：

Cross sections for elastic and proton-dissociative photoproduction of J/psi mesons are measured with the H1 detector in positron-proton collisions at HERA. The data were collected at ep centre-of-mass energies root s approximate to 318 GeV and root s approximate to 225 GeV, corresponding to integrated luminosities of L = 130 pb(-1) and L = 10.8 pb(-1), respectively. The cross sections are measured as a function of the photon-proton centre-of-mass energy in the range 25 < W-gamma p < 110 GeV. Differential cross sections d sigma/dt, where t is the squared four-momentum transfer at the proton vertex, are measured in the range vertical bar t vertical bar < 1.2 GeV2 for the elastic process and vertical bar t vertical bar < 8 GeV2 for proton dissociation. The results are compared to other measurements. The W-gamma p and t-dependences are parametrised using phenomenological fits.

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页数：17

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[1] Elastic and proton-dissociative photoproduction of J/ψ mesons at HERA
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A. Belousov
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V. Boudry
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J. G. Contreras
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