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Higher Twists and the Measurements of g{sub 2}

Conference ·
OSTI ID:840090
The 6 GeV accelerator at Jefferson Lab was used to perform precision studies of the neutron spin structure functions, g(x, Q2) and g(x, Q2). Using a dense polarized 3He target allowed us to determine the lowest moment, (Q2), for three different momentum-transfers (< 1 GeV2) in the resonance region. Together with data from other laboratories we were able to perform a systematic analysis of higher twist effects. In addition, a first precision measurement of g outside the resonance region (W> 1.9 GeV) indicates clear evidence for higher twist contributions for Q2 values less than 1 GeV2.
Research Organization:
Thomas Jefferson National Accelerator Facility, Newport News, VA (US)
Sponsoring Organization:
USDOE Office of Energy Research (ER) (US)
DOE Contract Number:
AC05-84ER40150
OSTI ID:
840090
Report Number(s):
JLAB-PHY-05-303; DOE/ER/40150-3388
Country of Publication:
United States
Language:
English

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