Dijet angular distributions in direct and resolved photoproduction at HERA

ZEUS Collaboration; J Repond; U Mallik

doi:10.1016/0370-2693(96)00931-8

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Dijet angular distributions in direct and resolved photoproduction at HERA

Journal article

Peer reviewed

Dijet angular distributions in direct and resolved photoproduction at HERA

ZEUS Collaboration, J Repond and U Mallik

Physics letters. B, Vol.384(1-4), pp.401-413

09/19/1996

DOI: 10.1016/0370-2693(96)00931-8

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Abstract

Jet photoproduction, where the two highest transverse energy (E(T)(jet)) jets have E(T)(jet) above 6 GeV and a jet-jet invariant mass above 23 GeV, has been studied with the ZEUS detector at the HERA ep collider. Resolved and direct photoproduction samples have been separated. The cross section as a function of the angle between the jet-jet axis and the beam direction in the dijet rest frame has been measured for the two samples. The measured angular distributions differ markedly from each other. They agree with the predictions of QCD calculations, where the different angular distributions reflect the different spins of the quark and gluon exchanged in the hard subprocess.

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Details

Title: Subtitle: Dijet angular distributions in direct and resolved photoproduction at HERA
Creators: ZEUS Collaboration
J Repond (Contributor)
U Mallik (Contributor)
Resource Type: Journal article
Publication Details: Physics letters. B, Vol.384(1-4), pp.401-413
DOI: 10.1016/0370-2693(96)00931-8
ISSN: 0370-2693
eISSN: 1873-2445
Publisher: Elsevier
Number of pages: 13
Language: English
Date published: 09/19/1996
Academic Unit: Physics and Astronomy
Record Identifier: 9984627201302771

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