Single-Spin Asymmetries AULsinφh in Semi-Inclusive Pions Production

被引：1

作者：

Lu, Zhun ^{[1
]}

Mao, Wenjuan ^{[1
,2
,3
]}

机构：

[1] Southeast Univ, Dept Phys, Nanjing 211189, Jiangsu, Peoples R China

[2] Peking Univ, Sch Phys, Beijing 100871, Peoples R China

[3] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China

来源：

PROCEEDINGS OF THE 21ST INTERNATIONAL SYMPOSIUM ON SPIN PHYSICS (SPIN2014) | 2016年 / 40卷

关键词：

Single-spin asymmetries; semi-inclusive deep inelastic scattering; transverse-momentum dependent distribution function; FRAGMENTATION; SCATTERING;

D O I：

10.1142/S2010194516600454

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The single-spin asymmetry A(UL)(sin phi h) of charged and neutral pion production in semi-inclusive deep-inelastic scattering on longitudinally polarized nucleon targets is studied. We particularly consider the effects of the twist-3 transverse-momentum dependent distribution functions f(L)(perpendicular to) and h(L), which are calculated in two different spectator-diquark models. We estimate the asymmetry for pi(+), pi(-) and pi(0) produced off the proton target at HERMES and compare the results with the HERMES measurements. We also predict the same asymmetric moment for different pions at the kinematics of CLAS 5.5 GeV on a proton target, as well as at COMPASS on a deuteron target for comparison.

引用

页数：6

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