Diffractive J/ψ photoproduction as a probe of the gluon density

M. G. Ryskin; R. G. Roberts; A. D. Martin; E. M. Levin

doi:10.1007/s002880050547

Diffractive J/ψ photoproduction as a probe of the gluon density

M. G. Ryskin, R. G. Roberts, A. D. Martin, E. M. Levin

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

We use perturbative QCD, beyond the leading ln Q² approximation, to show how measurements of diffractive J/ψ production at HERA can provide a sensitive probe of the gluon density of the proton at small values of Bjorken x. We estimate both the effect of the relativistic motion of the c and c̄ within the J/ψ and of the rescattering of the cc̄ quark pair on the proton. We find that the available data for diffractive J/ψ photoproduction can discriminate between the gluon distributions of the most recent sets of partons.

Original language	English
Pages (from-to)	231-239
Number of pages	9
Journal	Zeitschrift fur Physik C-Particles and Fields
Volume	76
Issue number	2
DOIs	https://doi.org/10.1007/s002880050547
State	Published - Oct 1997

Access to Document

10.1007/s002880050547

Cite this

@article{b41e90857e974345a419ee1fb923e44f,

title = "Diffractive J/ψ photoproduction as a probe of the gluon density",

abstract = "We use perturbative QCD, beyond the leading ln Q2 approximation, to show how measurements of diffractive J/ψ production at HERA can provide a sensitive probe of the gluon density of the proton at small values of Bjorken x. We estimate both the effect of the relativistic motion of the c and {\=c} within the J/ψ and of the rescattering of the c{\=c} quark pair on the proton. We find that the available data for diffractive J/ψ photoproduction can discriminate between the gluon distributions of the most recent sets of partons.",

author = "Ryskin, {M. G.} and Roberts, {R. G.} and Martin, {A. D.} and Levin, {E. M.}",

note = "Funding Information: Acknowledgements. We thank Drs. R. C. E. Devenish and M. R. Whalley for organizing the Durham Workshop on “HERA Physics”, where this work originated. We thank the UK Particle Physics and Astronomy Research Council and the Royal Society for financial support. Also EML thanks CNPq of Brazil for financial support.",

year = "1997",

month = oct,

doi = "10.1007/s002880050547",

language = "אנגלית",

volume = "76",

pages = "231--239",

journal = "European Physical Journal C",

issn = "1434-6044",

publisher = "Springer New York",

number = "2",

}

TY - JOUR

T1 - Diffractive J/ψ photoproduction as a probe of the gluon density

AU - Ryskin, M. G.

AU - Roberts, R. G.

AU - Martin, A. D.

AU - Levin, E. M.

N1 - Funding Information: Acknowledgements. We thank Drs. R. C. E. Devenish and M. R. Whalley for organizing the Durham Workshop on “HERA Physics”, where this work originated. We thank the UK Particle Physics and Astronomy Research Council and the Royal Society for financial support. Also EML thanks CNPq of Brazil for financial support.

PY - 1997/10

Y1 - 1997/10

N2 - We use perturbative QCD, beyond the leading ln Q2 approximation, to show how measurements of diffractive J/ψ production at HERA can provide a sensitive probe of the gluon density of the proton at small values of Bjorken x. We estimate both the effect of the relativistic motion of the c and c̄ within the J/ψ and of the rescattering of the cc̄ quark pair on the proton. We find that the available data for diffractive J/ψ photoproduction can discriminate between the gluon distributions of the most recent sets of partons.

AB - We use perturbative QCD, beyond the leading ln Q2 approximation, to show how measurements of diffractive J/ψ production at HERA can provide a sensitive probe of the gluon density of the proton at small values of Bjorken x. We estimate both the effect of the relativistic motion of the c and c̄ within the J/ψ and of the rescattering of the cc̄ quark pair on the proton. We find that the available data for diffractive J/ψ photoproduction can discriminate between the gluon distributions of the most recent sets of partons.

UR - http://www.scopus.com/inward/record.url?scp=0009082497&partnerID=8YFLogxK

U2 - 10.1007/s002880050547

DO - 10.1007/s002880050547

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

AN - SCOPUS:0009082497

VL - 76

SP - 231

EP - 239

JO - European Physical Journal C

JF - European Physical Journal C

SN - 1434-6044

IS - 2

ER -

Diffractive J/ψ photoproduction as a probe of the gluon density

Abstract

Access to Document

Other files and links

Fingerprint

Cite this