The decays h <sup>0</sup>→ bb¯ and h <sup>0</sup>→ 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