Wb(b)over-barj production at NLO with POWHEG plus MiNLO

被引：0

作者：

Luisoni, Gionata ^{[1
]}

Oleari, Carlo ^{[2
,3
]}

Tramontano, Francesco ^{[4
,5
]}

机构：

[1] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany

[2] Univ Milano Bicocca, I-20126 Milan, Italy

[3] Ist Nazl Fis Nucl, Sez Milano Bicocca, I-20126 Milan, Italy

[4] Univ Naples Federico II, I-80126 Naples, Italy

[5] Ist Nazl Fis Nucl, Sez Napoli, I-80126 Naples, Italy

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2015年 / 04期

关键词：

Monte Carlo Simulations; NLO Computations; LOOP; INTEGRALS; LIBRARY;

D O I：

10.1007/JHEP04(2015)161

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 present a next-to-leading order plus parton-shower event generator for the production of a W boson plus two bottom quarks and a jet at hadron colliders, implemented in the POWHEG BOX framework. Bottom-mass effects and spin correlations of the decay products of the W boson are fully taken into account. The code has been automatically generated using the two available interfaces to MadGraph4 and GoSam, the last one updated to a new version. We have applied the MiNLO prescription to our Wb (b) over barj calculation, obtaining a finite differential cross section also in the limit of vanishing jet transverse momentum. Furthermore, we have compared several key distributions for Wb (b) over barj production with those generated with a next-to-leading order plus parton-shower event generator for Wb (b) over bar production, and studied their factorization-and renormalization-scale dependence. Finally, we have compared our results with recent experimental data from the ATLAS and CMS Collaborations.

引用

页数：25

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