Hadronic Higgs production and decay in supersymmetry at next-to-leading order

被引:65
作者
Harlander, RV [1 ]
Steinhauser, M
机构
[1] CERN, Div Theory, CH-1211 Geneva 23, Switzerland
[2] Univ Hamburg, Inst Theoret Phys 2, D-22761 Hamburg, Germany
关键词
D O I
10.1016/j.physletb.2003.09.013
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Supersymmetric QCD corrections to the gluonic production and decay rate of a CP-even Higgs boson are evaluated at next-to-leading order. To this aim, we derive an effective Lagrangian for the gluon-Higgs coupling. We show that a consistent calculation requires the inclusion of gluino effects, in contrast to what has been done previously. The supersymmetric corrections to the gluon-Higgs coupling lead to a modification of the next-to-leading order K-factor for the Higgs production rate at the LHC by less than 5%. (C) 2003 Published by Elsevier B.V.
引用
收藏
页码:258 / 268
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]  
[Anonymous], HEPPH9903257
[3]  
[Anonymous], APPL ASYMPTOTIC EXPA
[4]   INFRARED SINGULARITIES AND MASSIVE FIELDS [J].
APPELQUIST, T ;
CARAZZONE, J .
PHYSICAL REVIEW D, 1975, 11 (10) :2856-2861
[5]   Higgs boson theory and phenomenology [J].
Carena, M ;
Haber, HE .
PROGRESS IN PARTICLE AND NUCLEAR PHYSICS, VOL 50, NO 1, 2003, 50 (01) :63-152
[6]   Hadronic Higgs boson decay to order alpha(4)(s) [J].
Chetyrkin, KG ;
Kniehl, BA ;
Steinhauser, M .
PHYSICAL REVIEW LETTERS, 1997, 79 (03) :353-356
[7]   Decoupling relations to O(αs3) and their connection to low-energy theorems [J].
Chetyrkin, KG ;
Kniehl, BA ;
Steinhauser, M .
NUCLEAR PHYSICS B, 1998, 510 (1-2) :61-87
[8]   INTEGRATION BY PARTS - THE ALGORITHM TO CALCULATE BETA-FUNCTIONS IN 4-LOOPS [J].
CHETYRKIN, KG ;
TKACHOV, FV .
NUCLEAR PHYSICS B, 1981, 192 (01) :159-204
[9]   RADIATIVE-CORRECTIONS TO HIGGS BOSON PRODUCTION [J].
DAWSON, S .
NUCLEAR PHYSICS B, 1991, 359 (2-3) :283-300
[10]   QCD corrections to supersymmetric Higgs boson production: The role of squark loops [J].
Dawson, S ;
Djouadi, A ;
Spira, M .
PHYSICAL REVIEW LETTERS, 1996, 77 (01) :16-19