Five-flavour scheme predictions for t(t)over-barb(b)over-bar at next-to-leading order accuracy

被引：0

作者：

Frederix, Rikkert ^{[1
]}

Moskalets, Tetiana ^{[2
,3
]}

机构：

[1] Lund Univ, Dept Phys, Div Particle & Nucl Phys, Box 118, S-E22100 Lund, Sweden

[2] Freiburg Univ, Inst Phys, Hermann Herder Str 3a, D-79104 Freiburg, Germany

[3] Southern Methodist Univ, Dept Phys, POB 750399, Dallas, TX 75275 USA

来源：

EUROPEAN PHYSICAL JOURNAL C | 2024年 / 84卷 / 07期

基金：

瑞典研究理事会;

关键词：

D O I：

10.1140/epjc/s10052-024-13128-3

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 compute top quark pair production in association with a bottom quark pair at the LHC within the five-flavour scheme, matched to a parton shower, employing the FxFx merging scheme for t (t) over bar+ jets production with up to 2jets at NLO accuracy. To enhance the selection efficiency for the events with b-jets within the inclusive five-flavour sample, we augment the generation probability of bottom quark flavours in the short-distance event generation. Our analysis reveals some differences from NLO predictions within thefour-flavour scheme.

引用

页数：9

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