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Title: Spin-Flavor Decomposition in Polarized Semi-Inclusive Deep Inelastic Scattering Experiments at Jefferson Lab

Conference ·
OSTI ID:891610

A Jefferson Lab experiment proposal was discussed in this talk. The experiment is designed to measure the beam-target double-spin asymmetries A^h_1n in semi-inclusive deep-inelastic {vec}n({vec}e, e' pi^+)X and {vec}n({vec}e, e' pi^-)X reactions on a longitudinally polarized ^3He target. In addition to A^h_1n, the flavor non-singlet combination A[^pi^+][_1n][^-pi^+], in which the gluons do not contribute, will be determined with high precision to extract Delta d[_v](x) independent of the knowledge of the fragmentation functions. The data will also impose strong constraints on quark and gluon polarizations through a global NLO QCD fit.

Research Organization:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Organization:
USDOE - Office of Energy Research (ER)
DOE Contract Number:
AC05-84ER40150
OSTI ID:
891610
Report Number(s):
JLAB-PHY-06-538; DOE/ER/40150-4035; TRN: US0703477
Resource Relation:
Conference: 1st Workshop On Quark-Hadron Duality And The Transition To PQCD, 6-8 Jun 2005, Frascati, Rome, Italy
Country of Publication:
United States
Language:
English