Associated production of a top pair and a Z boson at the LHC to NNLL accuracy

被引:23
|
作者
Broggio, Alessandro [1 ]
Ferroglia, Andrea [2 ,3 ]
Ossola, Giovanni [2 ,3 ]
Pecjak, Ben D. [4 ]
Sameshima, Ray D. [2 ,3 ]
机构
[1] Tech Univ Munich, Phys Dept T31, James Franck Str 1, D-85748 Garching, Germany
[2] CUNY, New York City Coll Technol, Phys Dept, 300 Jay St, Brooklyn, NY 11201 USA
[3] CUNY, Grad Sch & Univ Ctr, 365 Fifth Ave, New York, NY 10016 USA
[4] Univ Durham, Inst Particle Phys Phenomenol, Dept Phys, Sci Labs,Ogden Ctr Fundamental Phys, South Rd, Durham DH1 3LE, England
来源
基金
美国国家科学基金会;
关键词
NLO Computations; QCD Phenomenology; ONE-LOOP CALCULATIONS; REDUCTION; RESUMMATION; QCD;
D O I
10.1007/JHEP04(2017)105
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 study the resummation of soft gluon emission corrections to the production of a top-antitop pair in association with a Z boson at the Large Hadron Collider to next-to-next-to-leading logarithmic accuracy. By means of an in-house parton level Monte Carlo code we evaluate the resummation formula for the total cross section and several differential distributions at a center-of-mass energy of 13TeV, and we match these calculations to next-to- leading order results.
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收藏
页数:19
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