Bose-Einstein correlations in one and two dimensions in deep inelastic scattering
arXiv:hep-ex/0311030 · doi:10.1016/j.physletb.2003.12.068
Abstract
Bose-Einstein correlations in one and two dimensions have been studied in deep inelastic EP scattering events measured with the ZEUS detector at HERA using an integrated luminosity of 121 pb-1. The correlations are independent of the virtuality of the exchanged photon, Q2, in the range 0.1<Q2<8000 GeV2. There is no significant difference between the correlations in the current and target regions of the Breit frame for Q2>100 GeV2. The two-dimensional shape of the particle-production source was investigated, and a significant difference between the transverse and the longitudinal dimensions of the source is observed.This difference also shows no Q2 dependence.The results demonstrate that Bose-Einstein interference, and hence the size of the particle-production source, is insensitive to the hard subprocess.
17 pages, 4 EPS figures, 2 tables
References in corpus (4)
Cited by in corpus (9)
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