Leading and higher twist contributions in semi-inclusive e+e- annihilation at high energies

被引：27
|
作者：
Wei, Shu-yi [1 ,2 ]
Chen, Kai-bao [1 ,2 ]
Song, Yu-kun [3 ]
Liang, Zuo-tang [1 ,2 ,4 ]
机构：
[1] Shandong Univ, Sch Phys, Jinan 250100, Shandong, Peoples R China
[2] Shandong Univ, Key Lab Particle Phys & Particle Irradiat MOE, Jinan 250100, Shandong, Peoples R China
[3] Univ Jinan, Sch Phys & Technol, Jinan 250022, Shandong, Peoples R China
[4] CAS Ctr Excellence Particle Phys, Beijing 10094, Peoples R China
来源：
PHYSICAL REVIEW D | 2015年 / 91卷 / 03期
基金：
中国国家自然科学基金;
关键词：
QUARK FRAGMENTATION FUNCTIONS; POWER CORRECTIONS; LAMBDA-BARYON; HADRONIC SCATTERING; SPIN ALIGNMENT; POLARIZATION; FLAVOR; ASYMMETRIES;
D O I：
10.1103/PhysRevD.91.034015
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
By applying the collinear expansion to the semi-inclusive hadron production process e(+)e(-) -> h + (q) over bar (jet) + X at high energies, we construct a theoretical framework where leading and higher twist contributions at the leading perturbative QCD can be calculated systematically. With this framework, we calculate the contributions up to twist-3 for spin-0, spin-1/2, and spin-1 hadrons, respectively. We present the results for the hadronic tensors, the differential cross sections, the azimuthal asymmetries, and the polarizations of the hadrons.
引用
收藏
页数：37
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