parton distributions;
sigma hyperon;
flavor asymmetry;
D O I:
10.1016/S0375-9474(98)89010-6
中图分类号:
O57 [原子核物理学、高能物理学];
学科分类号:
070202 ;
摘要:
We use the meson cloud model and the Sullivan mechanism to estimate the sea flavor asymmetry in the Sigma(+) baryon and calculate the distribution functions of both sea and valence quarks. We find large deviations from SU(3). (C) 1998 Elsevier Science B.V.