期刊
PHYSICAL REVIEW LETTERS
卷 101, 期 18, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.101.182502
关键词
-
资金
- National Science Foundation
- US Department of Energy (DOE) [DE-AC05-84ER40150]
We present experimental results of the first high-precision test of quark-hadron duality in the spin-structure function g(1) of the neutron and He-3 using a polarized He-3 target in the four-momentum-transfer-squared range from 0.7 to 4.0 (GeV/c)(2). Global duality is observed for the spin-structure function g(1) down to at least Q(2)=1.8 (GeV/c)(2) in both targets. We have also formed the photon-nucleon asymmetry A(1) in the resonance region for He-3 and found no strong Q(2) dependence above 2.2 (GeV/c)(2).
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