Effective field theory for Higgs boson plus jet production

被引:58
作者
Dawson, S. [1 ]
Lewis, I. M. [1 ]
Zeng, Mao [2 ]
机构
[1] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA
[2] SUNY Stony Brook, CN Yang Inst Theoret Phys, Stony Brook, NY 11794 USA
来源
PHYSICAL REVIEW D | 2014年 / 90卷 / 09期
基金
美国国家科学基金会;
关键词
LARGE TRANSVERSE-MOMENTUM; QCD CORRECTIONS; RENORMALIZATION; FUSION;
D O I
10.1103/PhysRevD.90.093007
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We use an effective field theory which includes all possible gluon-Higgs dimension-5 and dimension-7 operators to study Higgs boson plus jet production in next-to-leading order QCD. The effective field theory sheds light on the effect of a finite top quark mass as well as any beyond-the-Standard-Model modifications of Higgs-gluon effective couplings. In the gluon channel, the accuracy of the heavy-top approximation for differential distributions arises from the noninterference between the helicity amplitudes of the G(3)h and G(2)h operators in the m(h) < p(T) limit at lowest order. One dimension-7 operator involving quark bilinears, however, contributes significantly at high pT and potentially offers a channel for seeing beyond-the-Standard- Model effects. One-loop renormalization of these operators is determined, allowing resummation of large logarithms via renormalization group running. Next-to-leading-order numerical results at the LHC are presented, which include O(1/m(t)(2)) contributions in the Standard Model limit.
引用
收藏
页数:19
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