Recent results from HERMES

被引:0
|
作者
Ruh, M [1 ]
机构
[1] Univ Freiburg, Fak Phys, D-79104 Freiburg, Germany
来源
ACTA PHYSICA POLONICA B | 1998年 / 29卷 / 05期
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暂无
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The study of the spill structure of the nucleon is the primary goal of the HERMES experiment. In 1995, the first year of the experiment, the neutron structure function g(1)(n) was measured using a polarised He-3 target. Additionally, semi-inclusive hadron and pion asymmetries were extracted from He-3. In 1996/97 a polarised hydrogen target was employed and preliminary results of the inclusive asymmetry as well as semi-inclusive hadron and pion asymmetries are presented. Preliminary results from the HERMES unpolarised physics program are shown including the valence quark distribution ratio d(v)(x)/u(v)(x), the flavour asymmetry of the light quark sea, measurements of fragmentation functions and the decay angular distributions of rho(o) mesons produced in exclusive deep inelastic electro-production.
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页码:1275 / 1293
页数:19
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