Hadron scattering from polarized 3He

B. Larson, D. Whittal, E. Brash, P. Delheij, O. Häusser, R. Henderson, A. Rahav, M. Vetterli
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Abstract

Polarized 3He targets suitable for experiments with a variety of primary and secondary beams have been developed using the method of optical pumping of Rb and polarization transfer by spin exchange collisions. Results obtained with these targets include: i) spin‐momentum correlations of nucleons probed by 3He(p,2p) and (p,pn) knockout reactions at Ep=220 and 290 MeV; ii) spin‐dependent amplitudes for elastic scattering of polarized protons from measurements of Aon, Ano, and Ann at Ep=200−500 MeV; iii) spin‐dependent amplitudes for elastic pion scattering from asymmetries measured at Eπ+ = 100 MeV.
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极化3He的强子散射
利用铷原子的光泵浦和自旋交换碰撞的极化转移方法,研制了适合多种主次光束实验的极化3He靶。用这些靶得到的结果包括:i)在Ep=220和290 MeV下,3He(p,2p)和(p,pn)敲除反应探测到的核子的自旋动量相关性;ii)在Ep=200−500 MeV下测量的Aon、Ano和Ann极化质子弹性散射的自旋依赖振幅;iii)在π+ = 100 MeV下测量的不对称弹性介子散射的自旋相关振幅。
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