Virtual QCD corrections to Higgs boson plus four parton processes

被引:45
作者
Ellis, RK [1 ]
Giele, WT [1 ]
Zanderighi, G [1 ]
机构
[1] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA
来源
PHYSICAL REVIEW D | 2005年 / 72卷 / 05期
关键词
D O I
10.1103/PhysRevD.72.054018
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We report on the calculation of virtual processes contributing to the production of a Higgs boson and two jets in hadron-hadron collisions. The coupling of the Higgs boson to gluons, via a virtual loop of top quarks, is treated using an effective theory, valid in the large top quark mass limit. The calculation is performed by evaluating one-loop diagrams in the effective theory. The primary method of calculation is a numerical evaluation of the virtual amplitudes as a Laurent series in D-4, where D is the dimensionality of space-time. For the cases H -> q (q) over barq (q) over bar and H -> q (q) over bar (')q (q) over bar' we confirm the numerical results by an explicit analytic calculation.
引用
收藏
页数:11
相关论文
共 39 条
[1]   Higgs boson production at hadron colliders in NNLO QCD [J].
Anastasiou, C ;
Melnikov, K .
NUCLEAR PHYSICS B, 2002, 646 (1-2) :220-256
[2]  
ANDONOV A, HEPPH0411186
[3]  
Badger SD, 2005, J HIGH ENERGY PHYS
[4]  
BELANGER G, HEPPH0308080
[5]   RECURSIVE CALCULATIONS FOR PROCESSES WITH N GLUONS [J].
BERENDS, FA ;
GIELE, WT .
NUCLEAR PHYSICS B, 1988, 306 (04) :759-808
[6]   Supersymmetric regularization, two-loop QCD amplitudes, and coupling shifts [J].
Bern, Z ;
De Freitas, A ;
Dixon, L ;
Wong, HL .
PHYSICAL REVIEW D, 2002, 66 (08)
[7]   One-loop amplitudes for e+e- to four partons [J].
Bern, Z ;
Dixon, L ;
Kosower, DA .
NUCLEAR PHYSICS B, 1998, 513 (1-2) :3-86
[8]   COLOR DECOMPOSITION OF ONE-LOOP AMPLITUDES IN GAUGE-THEORIES [J].
BERN, Z ;
KOSOWER, DA .
NUCLEAR PHYSICS B, 1991, 362 (1-2) :389-448
[9]   THE COMPUTATION OF LOOP AMPLITUDES IN GAUGE-THEORIES [J].
BERN, Z ;
KOSOWER, DA .
NUCLEAR PHYSICS B, 1992, 379 (03) :451-561
[10]   A numerical evaluation of the scalar hexagon integral in the physical region [J].
Binoth, T ;
Heinrich, G ;
Kauer, N .
NUCLEAR PHYSICS B, 2003, 654 (1-2) :277-300