Next-to-Leading Order QCD Corrections to the Production of Two Bottom-Antibottom Pairs at the LHC

被引:53
作者
Greiner, Nicolas [1 ]
Guffanti, Alberto [2 ]
Reiter, Thomas [3 ,4 ]
Reuter, Juergen [2 ,5 ]
机构
[1] Univ Illinois, Dept Phys, Urbana, IL 61801 USA
[2] Univ Freiburg, Inst Phys, D-79104 Freiburg, Germany
[3] Nikhef, NL-1098 XG Amsterdam, Netherlands
[4] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany
[5] DESY, D-22607 Hamburg, Germany
关键词
FINAL-STATES; HIGGS; GENERATION;
D O I
10.1103/PhysRevLett.107.102002
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We report the results of a computation of the full next-to-leading order QCD corrections to the production of two b (b) over bar pairs at the LHC. This calculation at the parton level provides predictions for well separated b jets. The results show that the next-to-leading order corrections lead to an enhancement of the cross section for the central scale choice by roughly 50% with respect to the leading order result. The theoretical uncertainty estimated by variation of the renormalization and factorization scales is strongly reduced by the inclusion of next-to-leading order corrections.
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页数:4
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