QCD corrections to single slepton production at hadron colliders

被引：10

作者：

Chen, Yu-Qi ^{[1
]}

Han, Tao

Si, Zong-Guo

机构：

[1] Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China

[2] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA

[3] Tsinghua Univ, Ctr High Energy Phys Res, Dept Phys, Beijing 100080, Peoples R China

[4] Shandong Univ, Dept Phys, Jinan 250100, Peoples R China

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2007年 / 05期

关键词：

NLO; computations; supersymmetry; phenomenology; hadronic colliders;

D O I：

10.1088/1126-6708/2007/05/068

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 evaluate the cross section for single slepton production at hadron colliders in supersymmetric theories with R-parity violating interactions to the next-to-leading order in QCD. We obtain fully differential cross section by using the phase space slicing lethod. We also perform soft-gluon resummation to all order in alpha(s) of leading logarithm to obtain a complete transverse momentum spectrum of the slepton. We find that the full transverse momentum spectrum is peaked at a few GeV, consistent with the early results for Drell-Yan production of lepton pairs. We also consider the contribution from gluon fusion via quark-triangle loop diagrams dominated by the b-quark loop. The cross section of this process is significantly smaller than that of the tree-level process induced by the initial b (b) over bar annihilation.

引用

页数：23

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