Top-quark pair hadroproduction in association with a heavy boson at NLO plus NNLL including EW corrections

被引：68

作者：

Broggio, Alessandro ^{[1
,2
]}

Ferroglia, Andrea ^{[3
,4
]}

Frederix, Rikkert ^{[5
]}

Pagani, Davide ^{[6
]}

Pecjak, Benjamin D. ^{[7
]}

Tsinikos, Ioannis ^{[6
]}

机构：

[1] Univ Milano Bicocca, Piazza Sci 3, I-20126 Milan, Italy

[2] INFN, Sez Milano Bicocca, Piazza Sci 3, I-20126 Milan, Italy

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

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

[5] Lund Univ, Theoret Particle Phys, Dept Astron & Theoret Phys, Solvegatan 14A, SE-22362 Lund, Sweden

[6] Tech Univ Munich, James Franck Str 1, D-85748 Garching, Germany

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

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2019年 / 2019卷 / 08期

基金：

美国国家科学基金会; 瑞典研究理事会;

关键词：

NLO Computations; QCD Phenomenology; QCD CORRECTIONS; CROSS-SECTIONS; COLLISIONS; REDUCTION; EXPANSION;

D O I：

10.1007/JHEP08(2019)039

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：

This work studies the associated production of a top-quark pair with a W, Z, or Higgs boson at the LHC. Predictions for the total cross sections as well as for several differential distributions of the massive particles in the final state are provided. These predictions, valid for the LHC operating at 13 TeV, include without any approximation all the NLO electroweak and QCD contributions of O (alpha(s)alpha(j+1)) with i + j = 2, 3. In addition, the predictions presented here improve upon the NLO QCD results by adding the effects of soft gluon emission corrections resummed to next-to-next-to-leading logarithmic accuracy. The residual dependence of the predictions on scale and PDF choices is analyzed.

引用

页数：46

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