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QCD factorization for quarkonium production in hadron collisions at low transverse momentum
Ma, JP; Wang, C; Ma, JP (reprint author), Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100190, Peoples R China.; Ma, JP (reprint author), Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China.
2016
发表期刊PHYSICAL REVIEW D
卷号93期号:1页码:14025
文章类型Article
摘要Inclusive production of a quarkonium eta(c,b) in hadron collisions at low transverse momentum can be used to extract various transverse-momentum-dependent (TMD) gluon distributions of hadrons, provided the TMD factorization for the process holds. The factorization involving unpolarized TMD gluon distributions of unpolarized hadrons has been examined with on-shell gluons at the one-loop level. In this work, we study the factorization at the one-loop level with a diagram approach in the most general case, where all TMD gluon distributions at leading twist are involved. We find that the factorization holds and the perturbative effects are represented by one perturbative coefficient. Since the initial gluons from hadrons are off shell, in general, there exists the so-called superleading region found recently. We find that the contributions from this region can come from individual diagrams at the one-loop level, but they are canceled in the sum. Our factorized result for the differential cross section is explicitly gauge invariant.
学科领域Astronomy & Astrophysics ; Physics
资助者National Nature Science Foundation of China [11275244] ; National Nature Science Foundation of China [11275244] ; National Nature Science Foundation of China [11275244] ; National Nature Science Foundation of China [11275244] ; CAS center for excellence in particle physics (CCEPP) ; CAS center for excellence in particle physics (CCEPP) ; CAS center for excellence in particle physics (CCEPP) ; CAS center for excellence in particle physics (CCEPP) ; National Nature Science Foundation of China [11275244] ; National Nature Science Foundation of China [11275244] ; National Nature Science Foundation of China [11275244] ; National Nature Science Foundation of China [11275244] ; CAS center for excellence in particle physics (CCEPP) ; CAS center for excellence in particle physics (CCEPP) ; CAS center for excellence in particle physics (CCEPP) ; CAS center for excellence in particle physics (CCEPP)
DOIhttp://dx.doi.org/10.1103/PhysRevD.93.014025
关键词[WOS]FINAL-STATE INTERACTIONS ; PARTON DISTRIBUTIONS ; HARD PROCESSES ; GAUGE ; UNIVERSALITY ; RESUMMATION ; SPIN
收录类别SCI
语种英语
资助者National Nature Science Foundation of China [11275244] ; National Nature Science Foundation of China [11275244] ; National Nature Science Foundation of China [11275244] ; National Nature Science Foundation of China [11275244] ; CAS center for excellence in particle physics (CCEPP) ; CAS center for excellence in particle physics (CCEPP) ; CAS center for excellence in particle physics (CCEPP) ; CAS center for excellence in particle physics (CCEPP) ; National Nature Science Foundation of China [11275244] ; National Nature Science Foundation of China [11275244] ; National Nature Science Foundation of China [11275244] ; National Nature Science Foundation of China [11275244] ; CAS center for excellence in particle physics (CCEPP) ; CAS center for excellence in particle physics (CCEPP) ; CAS center for excellence in particle physics (CCEPP) ; CAS center for excellence in particle physics (CCEPP)
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/21795
专题理论物理所SCI论文
通讯作者Ma, JP (reprint author), Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100190, Peoples R China.; Ma, JP (reprint author), Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China.
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Ma, JP,Wang, C,Ma, JP ,et al. QCD factorization for quarkonium production in hadron collisions at low transverse momentum[J]. PHYSICAL REVIEW D,2016,93(1):14025.
APA Ma, JP,Wang, C,Ma, JP ,&Ma, JP .(2016).QCD factorization for quarkonium production in hadron collisions at low transverse momentum.PHYSICAL REVIEW D,93(1),14025.
MLA Ma, JP,et al."QCD factorization for quarkonium production in hadron collisions at low transverse momentum".PHYSICAL REVIEW D 93.1(2016):14025.
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