Published May 12, 2003 | Version v1
Journal article

Leading proton production in e+p collisions at HERA

Creators

Description

Events with a final-state proton carrying a large fraction of the proton beam momentum, xL>0.6, and the square of the transverse momentum pT2<0.5 GeV2, have been studied in e+p collisions with the ZEUS detector at HERA. Data with different photon virtualities were used: Q2<0.02 GeV2, 0.1<Q2<0.74 GeV2 and 3<Q2<254 GeV2, corresponding to integrated luminosities of 0.9, 1.85 and 3.38 pb-1. The cross sections are given as a function of xL, pT2, Q2 and the Bjorken scaling variable, x. The ratio of the cross section for leading proton production to the inclusive e+p cross section shows only a mild dependence on Q2 and on x. In the region 0.6<xL<0.97, the relative yield of protons is only a weak function of xL

Additional details

Identifiers

PII
S0550321303001524;

Publishing Information

Journal Title
Nuclear Physics. B
Journal Volume
658
Journal Issue
1-2
Journal Page Range
p. 3-46
ISSN
0550-3213
CODEN
NUPBBO

Optional Information

Copyright
Copyright (c) 2003 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.