ITP OpenIR  > 理论物理所2015年知识产出
Gauge invariance and QCD twist-3 factorization for single spin asymmetries
Ma, JP; Zhang, GP; Ma, JP (reprint author), Acad Sinica, Inst Theoret Phys, State Key Lab Theoret Phys, POB 2735, Beijing 100190, Peoples R China.
2015
发表期刊JOURNAL OF HIGH ENERGY PHYSICS
期号2页码:163
文章类型Article
摘要The collinear factorization at twist-3 for Drell-Yan processes is studied with the motivation to solve the discrepancy in literature about the single spin asymmetry in the lepton angular distribution, and to show how QCD gauge invariance is realized in the hadronic tensor. The obtained result here agrees with our early result derived with a totally different approach. In addition to the asymmetry we can construct another two observables to identify the spin effect. We show that the gauge invariance of different contributions in the hadronic tensor is made in different ways by summing the effects of gluon exchanges. More interestingly is that we can show that the virtual correction to one structure function of the hadronic tensor, hence to some weighted SSA observables, is completely determined by the quark form factor. This will simplify the calculation of higher order corrections. The corresponding result in semi-inclusive DIS is also given for the comparison with Drell-Yan processes.
关键词Qcd Phenomenology
学科领域Physics
资助者National Nature Science Foundation of P.R. China [11275244] ; National Nature Science Foundation of P.R. China [11275244] ; CAS center for excellence in particle physics ; CAS center for excellence in particle physics ; National Nature Science Foundation of P.R. China [11275244] ; National Nature Science Foundation of P.R. China [11275244] ; CAS center for excellence in particle physics ; CAS center for excellence in particle physics
DOIhttp://dx.doi.org/10.1007/JHEP02(2015)163
关键词[WOS]DRELL-YAN PROCESS
收录类别SCI
语种英语
资助者National Nature Science Foundation of P.R. China [11275244] ; National Nature Science Foundation of P.R. China [11275244] ; CAS center for excellence in particle physics ; CAS center for excellence in particle physics ; National Nature Science Foundation of P.R. China [11275244] ; National Nature Science Foundation of P.R. China [11275244] ; CAS center for excellence in particle physics ; CAS center for excellence in particle physics
WOS类目Physics, Particles & Fields
引用统计
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/21083
专题理论物理所2015年知识产出
通讯作者Ma, JP (reprint author), Acad Sinica, Inst Theoret Phys, State Key Lab Theoret Phys, POB 2735, Beijing 100190, Peoples R China.
推荐引用方式
GB/T 7714
Ma, JP,Zhang, GP,Ma, JP . Gauge invariance and QCD twist-3 factorization for single spin asymmetries[J]. JOURNAL OF HIGH ENERGY PHYSICS,2015(2):163.
APA Ma, JP,Zhang, GP,&Ma, JP .(2015).Gauge invariance and QCD twist-3 factorization for single spin asymmetries.JOURNAL OF HIGH ENERGY PHYSICS(2),163.
MLA Ma, JP,et al."Gauge invariance and QCD twist-3 factorization for single spin asymmetries".JOURNAL OF HIGH ENERGY PHYSICS .2(2015):163.
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