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Diffractive {rho}0 production at COMPASS

Journal Article · · AIP Conference Proceedings
DOI:https://doi.org/10.1063/1.2122072· OSTI ID:20726475
 [1]
  1. CEA-Saclay, DSM/DAPNIA/SphN, F-91191 Gif-sur-Yvette Cedex (France)
Diffractive leptoproduction of {rho}0 mesons, {mu} + N {yields} {mu} + N + {rho} is measured at COMPASS at < W > = 10 GeV over a wide range of Q2, 0.01 < Q2 < 10 GeV2. Angular distributions allow to determine spin density matrix elements. Preliminary results from COMPASS 2002 data are presented. They are consistent with a substantial increase of R = {sigma}L/{sigma}T with Q2 and a weak violation of SCHC, in agreement with other high energy experiments.
OSTI ID:
20726475
Journal Information:
AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 792; ISSN APCPCS; ISSN 0094-243X
Country of Publication:
United States
Language:
English

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