학술논문

Source-size measurements in the e3He(4He) → e′ pΛ X reaction.
Document Type
Article
Source
Physics of Atomic Nuclei. Apr2009, Vol. 72 Issue 4, p668-674. 7p. 6 Graphs.
Subject
*PARTICLES (Nuclear physics)
*SCATTERING (Physics)
*PROTONS
*ELECTROMAGNETISM
*COLLIDERS (Nuclear physics)
Language
ISSN
1063-7788
Abstract
We report preliminary data on proton-lambda correlations at small relative momentum q in the e3He(4He) → e′ pΛ X reaction at E0 = 4.7(4.46) GeV using the CLAS detector at Jefferson Lab. The enhancement of the correlation function at small q was found to be in qualitative agreement with theoretical expectations. The size of emission region about 1.5 fm was estimated using Lednický-Lyuboshitz analytical model. The experimental correlation function is comparable with the P-matrix fit of the hyperon-nucleon data. Small-relative-momentum-proton-lambda correlations both for 3He(4He) target and for electroproduction reaction were studied for the first time. [ABSTRACT FROM AUTHOR]