Resummation for rapidity distributions in top-quark pair production

被引：3
|
作者：
Pecjak, Benjamin D. [1 ]
Scott, Darren J. [2 ,3 ]
Wang, Xing [4 ,5 ]
Yang, Li Lin [4 ,5 ,6 ,7 ]
机构：
[1] Univ Durham, Inst Particle Phys Phenomenol, Durham DH1 3LE, England
[2] Univ Amsterdam, Inst Theoret Phys, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands
[3] Nikhef Theory Grp, Sci Pk 105, NL-1098 XG Amsterdam, Netherlands
[4] Peking Univ, Sch Phys, Beijing 100871, Peoples R China
[5] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China
[6] Collaborat Innovat Ctr Quantum Matter, Beijing, Peoples R China
[7] Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2019年 / 2019卷 / 03期
基金：
中国国家自然科学基金;
关键词：
QCD Phenomenology;
D O I：
10.1007/JHEP03(2019)060
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We extend our framework for the simultaneous resummation of soft and small-mass logarithms to rapidity distributions in top quark pair production. We give numerical results for the rapidity distribution of the top quark or the anti-top quark, as well as the rapidity distribution of the tt<overbar></mml:mover> pair, finding that resummation effects stabilize the dependence of the differential cross sections on the choice of factorization scale. We compare our results with recent measurements at the Large Hadron Collider and find good agreement. Our results may be useful in the extraction of the gluon parton distribution function from t production.
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收藏
页数：15
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