Diffractive photoproduction of ψ(2S) mesons at HERA

Brian Cox; C. Adloff; V. Andreev; B. Andrieu; T. Anthonis; A. Astvatsatourov; A. Babaev; J. Bähr; P. Baranov; E. Barrelet; W. Bartel; S. Baumgartner; J. Becker; M. Beckingham; A. Beglarian; O. Behnke; C. Beier; A. Belousov; Ch Berger; T. Berndt; J. C. Bizot; J. Böhme; V. Boudry; W. Braunschweig; V. Brisson; H. B. Bröker; D. P. Brown; W. Brückner; D. Bruncko; F. W. Büsser; A. Bunyatyan; A. Burrage

doi:10.1016/S0370-2693(02)02275-X

Diffractive photoproduction of ψ(2S) mesons at HERA

Brian Cox, C. Adloff, V. Andreev, B. Andrieu, T. Anthonis, A. Astvatsatourov, A. Babaev, J. Bähr, P. Baranov, E. Barrelet, W. Bartel, S. Baumgartner, J. Becker, M. Beckingham, A. Beglarian, O. Behnke, C. Beier, A. Belousov, Ch Berger, T. BerndtJ. C. Bizot, J. Böhme, V. Boudry, W. Braunschweig, V. Brisson, H. B. Bröker, D. P. Brown, W. Brückner, D. Bruncko, F. W. Büsser, A. Bunyatyan, A. Burrage

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Abstract

Results on diffractive photoproduction of ψ(2S) mesons are presented using data collected between 1996 and 2000 with the H1 detector at the HERA ep collider. The data correspond to an integrated luminosity of 77 pb-1. The energy dependence of the diffractive ψ(2S) cross section is found to be similar to or possibly somewhat steeper than that for J/ψ mesons. The dependences of the elastic and proton dissociative ψ(2S) photoproduction cross sections on the squared momentum transfer t at the proton vertex are measured. The t-dependence of the elastic channel, parametrised as ebt, yields bψ(2S)el = (4.31 ± 0.57 ± 0.46) GeV-2, compatible with that of the J/φ. For the proton dissociative channel the result bψ(2S)pd (0.59 ± 0.13 ± 0.12) GeV-2 is 2.3 standard deviations smaller than that measured for the J/ψ. With proper account of the individual wavefunctions theoretical predictions based on perturbative QCD are found to describe the measurements well. © 2002 Elsevier Science B.V. All rights reserved.

Original language	English
Pages (from-to)	251-264
Number of pages	13
Journal	Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	541
Issue number	3-4
DOIs	https://doi.org/10.1016/S0370-2693(02)02275-X
Publication status	Published - 15 Aug 2002

Keywords

Electron collisions; Gamma ray interactions; Perturbative QCD (diffractive photoprodn. of y(2S) mesons at HERA e+-p collider and perturbative QCD predictions)

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10.1016/S0370-2693(02)02275-X

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Cox, B., Adloff, C., Andreev, V., Andrieu, B., Anthonis, T., Astvatsatourov, A., Babaev, A., Bähr, J., Baranov, P., Barrelet, E., Bartel, W., Baumgartner, S., Becker, J., Beckingham, M., Beglarian, A., Behnke, O., Beier, C., Belousov, A., Berger, C., ... Burrage, A. (2002). Diffractive photoproduction of ψ(2S) mesons at HERA. Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, 541(3-4), 251-264. https://doi.org/10.1016/S0370-2693(02)02275-X

@article{18246813b5ef4d0eaecd3a87d06b69b8,

title = "Diffractive photoproduction of ψ(2S) mesons at HERA",

abstract = "Results on diffractive photoproduction of ψ(2S) mesons are presented using data collected between 1996 and 2000 with the H1 detector at the HERA ep collider. The data correspond to an integrated luminosity of 77 pb-1. The energy dependence of the diffractive ψ(2S) cross section is found to be similar to or possibly somewhat steeper than that for J/ψ mesons. The dependences of the elastic and proton dissociative ψ(2S) photoproduction cross sections on the squared momentum transfer t at the proton vertex are measured. The t-dependence of the elastic channel, parametrised as ebt, yields bψ(2S)el = (4.31 ± 0.57 ± 0.46) GeV-2, compatible with that of the J/φ. For the proton dissociative channel the result bψ(2S)pd (0.59 ± 0.13 ± 0.12) GeV-2 is 2.3 standard deviations smaller than that measured for the J/ψ. With proper account of the individual wavefunctions theoretical predictions based on perturbative QCD are found to describe the measurements well. {\textcopyright} 2002 Elsevier Science B.V. All rights reserved.",

keywords = "Electron collisions; Gamma ray interactions; Perturbative QCD (diffractive photoprodn. of y(2S) mesons at HERA e+-p collider and perturbative QCD predictions)",

author = "Brian Cox and C. Adloff and V. Andreev and B. Andrieu and T. Anthonis and A. Astvatsatourov and A. Babaev and J. B{\"a}hr and P. Baranov and E. Barrelet and W. Bartel and S. Baumgartner and J. Becker and M. Beckingham and A. Beglarian and O. Behnke and C. Beier and A. Belousov and Ch Berger and T. Berndt and Bizot, {J. C.} and J. B{\"o}hme and V. Boudry and W. Braunschweig and V. Brisson and Br{\"o}ker, {H. B.} and Brown, {D. P.} and W. Br{\"u}ckner and D. Bruncko and B{\"u}sser, {F. W.} and A. Bunyatyan and A. Burrage",

year = "2002",

month = aug,

day = "15",

doi = "10.1016/S0370-2693(02)02275-X",

language = "English",

volume = "541",

pages = "251--264",

journal = "Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier BV",

number = "3-4",

}

Cox, B, Adloff, C, Andreev, V, Andrieu, B, Anthonis, T, Astvatsatourov, A, Babaev, A, Bähr, J, Baranov, P, Barrelet, E, Bartel, W, Baumgartner, S, Becker, J, Beckingham, M, Beglarian, A, Behnke, O, Beier, C, Belousov, A, Berger, C, Berndt, T, Bizot, JC, Böhme, J, Boudry, V, Braunschweig, W, Brisson, V, Bröker, HB, Brown, DP, Brückner, W, Bruncko, D, Büsser, FW, Bunyatyan, A & Burrage, A 2002, 'Diffractive photoproduction of ψ(2S) mesons at HERA', Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 541, no. 3-4, pp. 251-264. https://doi.org/10.1016/S0370-2693(02)02275-X

TY - JOUR

T1 - Diffractive photoproduction of ψ(2S) mesons at HERA

AU - Cox, Brian

AU - Adloff, C.

AU - Andreev, V.

AU - Andrieu, B.

AU - Anthonis, T.

AU - Astvatsatourov, A.

AU - Babaev, A.

AU - Bähr, J.

AU - Baranov, P.

AU - Barrelet, E.

AU - Bartel, W.

AU - Baumgartner, S.

AU - Becker, J.

AU - Beckingham, M.

AU - Beglarian, A.

AU - Behnke, O.

AU - Beier, C.

AU - Belousov, A.

AU - Berger, Ch

AU - Berndt, T.

AU - Bizot, J. C.

AU - Böhme, J.

AU - Boudry, V.

AU - Braunschweig, W.

AU - Brisson, V.

AU - Bröker, H. B.

AU - Brown, D. P.

AU - Brückner, W.

AU - Bruncko, D.

AU - Büsser, F. W.

AU - Bunyatyan, A.

AU - Burrage, A.

PY - 2002/8/15

Y1 - 2002/8/15

N2 - Results on diffractive photoproduction of ψ(2S) mesons are presented using data collected between 1996 and 2000 with the H1 detector at the HERA ep collider. The data correspond to an integrated luminosity of 77 pb-1. The energy dependence of the diffractive ψ(2S) cross section is found to be similar to or possibly somewhat steeper than that for J/ψ mesons. The dependences of the elastic and proton dissociative ψ(2S) photoproduction cross sections on the squared momentum transfer t at the proton vertex are measured. The t-dependence of the elastic channel, parametrised as ebt, yields bψ(2S)el = (4.31 ± 0.57 ± 0.46) GeV-2, compatible with that of the J/φ. For the proton dissociative channel the result bψ(2S)pd (0.59 ± 0.13 ± 0.12) GeV-2 is 2.3 standard deviations smaller than that measured for the J/ψ. With proper account of the individual wavefunctions theoretical predictions based on perturbative QCD are found to describe the measurements well. © 2002 Elsevier Science B.V. All rights reserved.

AB - Results on diffractive photoproduction of ψ(2S) mesons are presented using data collected between 1996 and 2000 with the H1 detector at the HERA ep collider. The data correspond to an integrated luminosity of 77 pb-1. The energy dependence of the diffractive ψ(2S) cross section is found to be similar to or possibly somewhat steeper than that for J/ψ mesons. The dependences of the elastic and proton dissociative ψ(2S) photoproduction cross sections on the squared momentum transfer t at the proton vertex are measured. The t-dependence of the elastic channel, parametrised as ebt, yields bψ(2S)el = (4.31 ± 0.57 ± 0.46) GeV-2, compatible with that of the J/φ. For the proton dissociative channel the result bψ(2S)pd (0.59 ± 0.13 ± 0.12) GeV-2 is 2.3 standard deviations smaller than that measured for the J/ψ. With proper account of the individual wavefunctions theoretical predictions based on perturbative QCD are found to describe the measurements well. © 2002 Elsevier Science B.V. All rights reserved.

KW - Electron collisions; Gamma ray interactions; Perturbative QCD (diffractive photoprodn. of y(2S) mesons at HERA e+-p collider and perturbative QCD predictions)

U2 - 10.1016/S0370-2693(02)02275-X

DO - 10.1016/S0370-2693(02)02275-X

M3 - Article

SN - 0370-2693

VL - 541

SP - 251

EP - 264

JO - Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 3-4

ER -

Diffractive photoproduction of ψ(2S) mesons at HERA

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Keywords

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