Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2008-07-25
Phys.Rev.D78:075004,2008
Physics
High Energy Physics
High Energy Physics - Phenomenology
28 pages, 8 figures, LaTeX. Minor updates. Version to be published in PRD
Scientific paper
10.1103/PhysRevD.78.075004
Higgs singlet superfields are usually present in most extensions of the Minimal Supersymmetric Standard Model (MSSM) that address the mu-problem, such as the Next-to-Minimal Supersymmetric Standard Model (NMSSM) and the Minimal Nonminimal Supersymmetric Standard Model (MNSSM). Employing a gauge- and flavour-covariant effective Lagrangian formalism, we show how the singlet Higgs bosons of such theories can have significant contributions to B-meson flavour-changing neutral current (FCNC) observables for large values of $\tan\beta \stackrel{>}{{}_\sim} 50$ at the 1-loop level. Illustrative results are presented including effects on the B_s and B_d mass differences and on the rare decay $B_s\to\mu^+\mu^-$. In particular, we find that depending on the actual value of the lightest singlet pseudoscalar mass in the NMSSM, the branching ratio for $B_s\to\mu^+\mu^-$ can be enhanced or even suppressed with respect to the Standard Model prediction by more than one order of magnitude.
Hodgkinson Robert N.
Pilaftsis Apostolos
No associations
LandOfFree
Supersymmetric Higgs Singlet Effects on B-Meson FCNC Observables at Large tan(beta) does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Supersymmetric Higgs Singlet Effects on B-Meson FCNC Observables at Large tan(beta), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Supersymmetric Higgs Singlet Effects on B-Meson FCNC Observables at Large tan(beta) will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-326240