Neutron News from Jefferson Lab
Understanding the spin structure of the nucleon in terms of quarks and gluons has been a challenging endeavor for more than 25 years. The quark's contribution to the spin of the nucleon is well established and amounts to about 30% of 1/2[h-bar]. The study of gluon contributions and orbital angular momenta has been the main experimental (and theoretical) focus in recent years. New results of single-spin asymmetries in semi-inclusive deep-inelastic scattering will be presented. The Sivers- and Collins-Effects were investigated using asymmetries in pion electro-production off transversely polarized helium-3 targets.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- AC05-06OR23177
- OSTI ID:
- 1017152
- Report Number(s):
- JLAB-PHY-10-1317; DOE/OR/23177-1580; TRN: US1103174
- Journal Information:
- AIP Conf. Proc., Vol. 1343; Conference: Quark Confinement and the Hadron Spectrum IX Conference 30 Aug - 3 Sep 2010, Madrid, SPAIN
- Country of Publication:
- United States
- Language:
- English
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