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：

JOURNAL OF HIGH ENERGY PHYSICS | 2017年 / 04期

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.

引用

页数：19

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