The decays h ⁰→ bb¯ and h ⁰→ cc¯ in the light of the MSSM with quark flavour violation

Author(s)

H. Eberl, E. Ginina, A. Bartl, K. Hidaka, W. Majerotto

Abstract

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%.

Organisation(s)

Particle Physics

External organisation(s)

Österreichische Akademie der Wissenschaften (ÖAW), Tokyo Gakugei University (TGU)

Journal

Journal of High Energy Physics

Volume

2016

No. of pages

23

ISSN

1029-8479

DOI

https://doi.org/10.1007/JHEP06(2016)143

Publication date

06-2016

Peer reviewed

Yes

Austrian Fields of Science 2012

103034 Particle physics

Keywords

ASJC Scopus subject areas

Nuclear and High Energy Physics

Portal url

https://ucrisportal.univie.ac.at/en/publications/the-decays-h-0-bb-and-h-0-cc-in-the-light-of-the-mssm-with-quark-flavour-violation(27e6cfa5-34f4-48e4-ae33-b689067f0df2).html