Measurement of the t dependence in exclusive photoproduction of gamma(1s) mesons at HERA

H. Abramowicz; I. Abt; L. Adamczyk; M. Adamus; R. Aggarwal; S. Antonelli; P. Antonioli; A. Antonov; M. Arneodo; V. Aushev; Y. Aushev; O. Bachynska; A. Bamberger; A. N. Barakbaev; G. Barbagli; G. Bari; F. Barreiro; N. Bartosik; D. Bartsch; M. Basile; O. Behnke; J. Behr; U. Behrens; L. Bellagamba; A. Bertolin; S. Bhadra; M. Bindi; C. Blohm; V. Bokhonov; T. Bold; K. Bondarenko; E. G. Boos; K. Borras; D. Boscherini; D. Bot; I. Brock; E. Brownson; R. Brugnera; N. Bruemmer; A. Bruni; G. Bruni; B. Brzozowska; P. J. Bussey; B. Bylsma; A. Caldwell; M. Capua; R. Carlin; C. D. Catterall; S. Chekanov; J. Chwastowski; J. Ciborowski; R. Ciesielski; L. Cifarelli; F. Cindolo; A. Contin; A. M. Cooper-Sarkar; N. Coppola; M. Corradi; F. Corriveau; M. Costa; G. D'Agostini; F. Dal Corso; J. del Peso; R. K. Dementiev; S. De Pasquale; M. Derrick; R. C. E. Devenish; D. Dobur; B. A. Dolgoshein; G. Dolinska; A. T. Doyle; V. Drugakov; L. S. Durkin; S. Dusini; Y. Eisenberg; P. F. Ermolov; A. Eskreys; S. Fang; S. Fazio; J. Ferrando; M. I. Ferrero; J. Figiel; M. Forrest; B. Foster; G. Gach; A. Galas; E. Gallo; A. Garfagnini; A. Geiser; I. Gialas; L. K. Gladilin; D. Gladkov; C. Glasman; O. Gogota; Yu. A. Golubkov; P. Goettlicher; I. Grabowska-Bold; J. Grebenyuk; I. Gregor; G. Grigorescu; ZEUS Collaboration

doi:10.1016/j.physletb.2012.01.009

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Measurement of the t dependence in exclusive photoproduction of gamma(1s) mesons at HERA

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Measurement of the t dependence in exclusive photoproduction of gamma(1s) mesons at HERA

H. Abramowicz, I. Abt, L. Adamczyk, M. Adamus, R. Aggarwal, S. Antonelli, P. Antonioli, A. Antonov, M. Arneodo, V. Aushev, …

Physics letters. B, Vol.708(1-2), pp.14-20

02/14/2012

DOI: 10.1016/j.physletb.2012.01.009

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Abstract

The exclusive photoproduction reaction gamma p -> gamma(1S)p has been studied with the ZEUS detector in ep collisions at HERA using an integrated luminosity of 468 pb(-1). The measurement covers the kinematic range 60 < W < 220 GeV and Q(2) < 1 GeV2, where W is the photon-proton centre-of-mass energy and Q(2) is the photon virtuality. The exponential slope, b, of the t dependence of the cross section, where t is the squared four-momentum transfer at the proton vertex, has been measured, yielding b = 4.3(-1.3)(+2.0)(stat.)(-0.6)(+0.5) (syst.) GeV-2. This constitutes the first measurement of the t dependence of the gamma p -> gamma(1S)p cross section. (C) 2012 Elsevier B.V. All rights reserved.

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Title: Subtitle: Measurement of the t dependence in exclusive photoproduction of gamma(1s) mesons at HERA
Creators: H. Abramowicz - Tel Aviv University
I. Abt - Max Planck Institute for Physics
L. Adamczyk - Institute of Metallurgy and Materials Science
M. Adamus - National Centre for Nuclear Research
R. Aggarwal - Panjab University
S. Antonelli - University of Bologna
P. Antonioli - Argonne National Laboratory
A. Antonov - Moscow Engineering Physics Institute
M. Arneodo - Università degli Studi del Piemonte Orientale “Amedeo Avogadro”
V. Aushev - Institute for Nuclear Research
Y. Aushev - Institute for Nuclear Research
O. Bachynska - Deutsches Elektronen-Synchrotron DESY
A. Bamberger - University of Freiburg
A. N. Barakbaev - Alma
G. Barbagli - Florence
G. Bari - INFN Sezione di Bologna
F. Barreiro - Autonomous University of Madrid
N. Bartosik - Taras Shevchenko National University of Kyiv
D. Bartsch - University of Bonn
M. Basile - University of Bologna
O. Behnke - Deutsches Elektronen-Synchrotron DESY
J. Behr - Deutsches Elektronen-Synchrotron DESY
U. Behrens - Deutsches Elektronen-Synchrotron DESY
L. Bellagamba - INFN Sezione di Bologna
A. Bertolin - INFN Sezione di Padova
S. Bhadra - York University
M. Bindi - University of Bologna
C. Blohm - Deutsches Elektronen-Synchrotron DESY
V. Bokhonov - National Academy of Sciences of Ukraine
T. Bold - AGH University of Krakow
K. Bondarenko - Taras Shevchenko National University of Kyiv
E. G. Boos - Alma
K. Borras - Deutsches Elektronen-Synchrotron DESY
D. Boscherini - INFN Sezione di Bologna
D. Bot - Deutsches Elektronen-Synchrotron DESY
I. Brock - University of Bonn
E. Brownson - University of Wisconsin–Madison
R. Brugnera - University of Padua
N. Bruemmer - The Ohio State University
A. Bruni - Ist Nazl Fis Nucl, I-40126 Bologna, Italy
G. Bruni - Argonne National Laboratory
B. Brzozowska - Deutsches Elektronen-Synchrotron DESY
P. J. Bussey - University of Glasgow
B. Bylsma - The Ohio State University
A. Caldwell - Max Planck Institute for Physics
M. Capua - University of Calabria
R. Carlin - University of Padua
C. D. Catterall - York University
S. Chekanov - Argonne National Laboratory
J. Chwastowski - Institute of Nuclear Physics, Polish Academy of Sciences
J. Ciborowski - University of Warsaw
R. Ciesielski - Deutsches Elektronen-Synchrotron DESY
L. Cifarelli - University of Bologna
F. Cindolo - INFN Sezione di Bologna
A. Contin - University of Bologna
A. M. Cooper-Sarkar - University of Oxford
N. Coppola - Deutsches Elektronen-Synchrotron DESY
M. Corradi - INFN Sezione di Bologna
F. Corriveau - McGill University
M. Costa - University of Turin
G. D'Agostini - Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy
F. Dal Corso - Ist Nazl Fis Nucl, Padua, Italy
J. del Peso - Autonomous University of Madrid
R. K. Dementiev - Lomonosov Moscow State University
S. De Pasquale - University of Bologna
M. Derrick - Argonne National Laboratory
R. C. E. Devenish - University of Oxford
D. Dobur - University of Freiburg
B. A. Dolgoshein - Argonne National Laboratory
G. Dolinska - Taras Shevchenko National University of Kyiv
A. T. Doyle - University of Glasgow
V. Drugakov - Deutsches Elektronen-Synchrotron DESY
L. S. Durkin - The Ohio State University
S. Dusini - Argonne National Laboratory
Y. Eisenberg - Weizmann Institute of Science
P. F. Ermolov - Lomonosov Moscow State University
A. Eskreys - Polish Academy of Sciences
S. Fang - Deutsches Elektronen-Synchrotron DESY
S. Fazio - University of Calabria
J. Ferrando - University of Oxford
M. I. Ferrero - University of Turin
J. Figiel - Polish Academy of Sciences
M. Forrest - University of Glasgow
B. Foster - University of Oxford
G. Gach - AGH University of Krakow
A. Galas - Polish Academy of Sciences
E. Gallo - Florence
A. Garfagnini - University of Padua
A. Geiser - Deutsches Elektronen-Synchrotron DESY
I. Gialas - University of the Aegean
L. K. Gladilin - Lomonosov Moscow State University
D. Gladkov - Moscow Engineering Physics Institute
C. Glasman - Autonomous University of Madrid
O. Gogota - Deutsches Elektronen-Synchrotron DESY
Yu. A. Golubkov - Lomonosov Moscow State University
P. Goettlicher - Deutsch Elektronen Synchrotron DESY, Hamburg, Germany
I. Grabowska-Bold - AGH University of Krakow
J. Grebenyuk - Deutsches Elektronen-Synchrotron DESY
I. Gregor - Deutsches Elektronen-Synchrotron DESY
G. Grigorescu - National Institute for Subatomic Physics
ZEUS Collaboration
Resource Type: Journal article
Publication Details: Physics letters. B, Vol.708(1-2), pp.14-20
Publisher: Elsevier
DOI: 10.1016/j.physletb.2012.01.009
ISSN: 0370-2693
eISSN: 1873-2445
Number of pages: 7
Grant note: ST/K001418/1 / Science and Technology Facilities Council; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) Science and Technology Facilities Council, UK; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) FRGS from Malaysian government DPN/N188/DESY/2009 / Polish Ministry of Science and Higher Education; Ministry of Science and Higher Education, Poland 05 H09PDF / German Federal Ministry for Education and Research (BMBF); Federal Ministry of Education & Research (BMBF) Italian National Institute for Nuclear Physics (INFN); Istituto Nazionale di Fisica Nucleare (INFN) US National Science Foundation; National Science Foundation (NSF) DESY directorate US Department of Energy; United States Department of Energy (DOE)
Language: English
Date published: 02/14/2012
Academic Unit: Physics and Astronomy
Record Identifier: 9984627246802771

Measurement of the t dependence in exclusive photoproduction of gamma(1s) mesons at HERA

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