The decays h0 → b(b)over-bar and h0 → c(c)over-bar in the light of the MSSM with quark flavour violation

被引：0

作者：

Eberl, H. ^{[1
]}

Ginina, E. ^{[1
]}

Bartl, A. ^{[2
]}

Hidaka, K. ^{[3
]}

Majerotto, W. ^{[1
]}

机构：

[1] Austrian Acad Sci, Inst Hochenergiephys, A-1050 Vienna, Austria

[2] Univ Vienna, Fak Phys, A-1090 Vienna, Austria

[3] Tokyo Gakugei Univ, Dept Phys, Koganei, Tokyo 1848501, Japan

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2016年 / 06期

基金：

奥地利科学基金会;

关键词：

Higgs Physics; Supersymmetric Standard Model; HIGGS-BOSON; EXTENSIONS; SPHENO;

D O I：

10.1007/JHEP06(2016)143

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：

We calculate the decay width of h(0) -> b (b) over bar in the Minimal Supers linnet Standard Model (MSSM) with quark flavour violation (QFV) at full one-loop level. study the effect of (c) over tilde-(t) over tilde mixing and (s) over tilde-(b) over tilde mixing taking into account the constraints from the B meson data. We discuss and compare in detail the decays h(0) -> c (c) over bar and h(0) -> b (b) over bar within the framework of the perturbative mass insertion technique using the Flavour Expansion Theorem. The deviation of both decay widths from the Standard Model values can be quite large. Whereas in h(0) -> c (c) over bar it is almost entirely due to the flavour violating part of the MSSM, in h(0) -> b (b) over bar it is mainly due to the flavour conserving part. Nevertheless the QFV contribution to Gamma(h(0) -> b (b) over bar) due to (c) over tilde-(t) over tilde mixing and chargino exchange can go up to similar to 7%.

引用

页数：23

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