STRANGENESS IN THE NUCLEON ON THE LIGHT-CONE

Citation
W. Melnitchouk et M. Malheiro, STRANGENESS IN THE NUCLEON ON THE LIGHT-CONE, Physical review. C. Nuclear physics, 55(1), 1997, pp. 431-440
Citations number
65
Categorie Soggetti
Physics, Nuclear
ISSN journal
05562813
Volume
55
Issue
1
Year of publication
1997
Pages
431 - 440
Database
ISI
SICI code
0556-2813(1997)55:1<431:SITNOT>2.0.ZU;2-U
Abstract
Strange matrix elements of the nucleon are calculated within the light -cone formulation of the meson cloud model. The Q(2) dependence of the strange vector and axial vector form factors is computed, and the str angeness radius and magnetic moment extracted, both of which are found to be very small and slightly negative. Within the same framework one finds a small but nonzero excess of the antistrange distribution over the strange at large x. Kaon loops are unlikely, however, to be the s ource of a large polarized strange quark distribution.