Associated production of a top pair and a W boson at next-to-next-to-leading logarithmic accuracy

被引：29

作者：

Broggio, Alessandro ^{[1
]}

Ferroglia, Andrea ^{[2
,3
,4
]}

Ossola, Giovanni ^{[2
,3
,4
]}

Pecjak, Ben D. ^{[5
]}

机构：

[1] Tech Univ Munich, Phys Dept T31, James Franck Str 1, D-85748 Garching, Germany

[2] CUNY, New York City Coll Technol, Dept Phys, 300 Jay St, Brooklyn, NY 11201 USA

[3] CUNY, Grad Sch, 365 Fifth Ave, New York, NY 10016 USA

[4] CUNY, Univ Ctr, 365 Fifth Ave, New York, NY 10016 USA

[5] Univ Durham, Dept Phys, Ogden Ctr Fundamental Phys, Inst Particle Phys Phenomenol,Sci Labs, South Rd, Durham DH1 3LE, England

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2016年 / 09期

基金：

美国国家科学基金会;

关键词：

NLO Computations; QCD Phenomenology; REDUCTION; RESUMMATION;

D O I：

10.1007/JHEP09(2016)089

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 consider soft gluon emission corrections to the production of a top-antitop pair in association with a W boson at the Large Hadron Collider. We obtain a soft-gluon resummation formula for this production process which is valid up to next-to-next-to-leading logarithmic accuracy. We evaluate the soft gluon resummation formula in Mellin space by means of an in-house parton level Monte Carlo code which allows us to obtain predictions for the total cross section as well as for several differential distributions. We study the impact of the soft-gluon resummation corrections in comparison to fixed order calculations.

引用

页数：27

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