RADIATIVE-CORRECTIONS FOR H-]F(F)BAR(GAMMA) IN THE STANDARD MODEL

被引：115

作者：

KNIEHL, BA ^{[1
]}

机构：

[1] UNIV WISCONSIN, DEPT PHYS, MADISON, WI 53706 USA

来源：

NUCLEAR PHYSICS B | 1992年 / 376卷 / 01期

关键词：

D O I：

10.1016/0550-3213(92)90065-J

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：

The partial widths of the fermionic Higgs-boson decays are calculated in the one-loop approximation of the minimal standard model of electroweak interactions. The soft-photon bremsstrahlung is resummed by means of Yennie-Frautschi-Suura exponentiation and the hard-photon spectrum is integrated analytically for a variable maximum photon energy. A general expression for the weak corrections in the modified on-mass-shell scheme is presented. For the charged-lepton and light-quark modes the formulae may be greatly simplified by neglecting the masses of all fermions, except for the top quark. For the bbBAR and ttBAR channels individual approximation formulae are derived assuming that the Higgs boson and the top quark are heavy as compared to the weak gauge bosons. Below the ttBAR production threshold the electroweak corrections are generally at the few-percent level but for a 1 TeV Higgs boson they may become as large as 15%.

引用

页码：3 / 28

页数：26

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