Erratum:Bs→l+l−in a type-II two-Higgs-doublet model and

Abstract

In this paper we analyze the process B s → ℓ + ℓ − in a model II 2HDM and MSSM. All the leading terms of Wilson coefficients relevant to the process are given in the large tanβ limit. It is shown that the decay width for B s → ℓ + ℓ − depends on all parameters except m A 0 in the 2HDM. The branching ratio of B s → µ + µ − can reach its experimental bound in some large tanβ regions of the parameter space in MSSM because the amplitude increases like tan 3 β in the regions. For l=τ , the branching ratio can even reach 10 −4 in the regions. Therefore, the experimental measurements of leptonic decays of B s could put a constraint on the contributions of neutral Higgs bosons and consequently the parameter space in MSSM.

Correlation between ΔMs and B0s,d→μ+μ− in supersymmetry at large tanβ

“…[9,10,11] the effects 1) and 4) have been discussed in the context of theB → X s γ decay. In [12] the effects 1)-3) have been calculated in the SU(2) × U(1) symmetry limit in the context of B 0 s,d → µ + µ − decays and B 0 s,d -B 0 s,d mixings confirming the increase of BR(B 0 s,d → µ + µ − ) and the suppression of ∆M s pointed out in [1,2,3,4] and [6], respectively.…”

“…(4.4) and (4.9), not included in [6] and [1,2,3,4], has been pointed out in [12]. While we confirm these additional factors, we would like to emphasize that depending on the sign of the supersymmetric parameter µ they can suppress ∆M DP s and BR(B 0 s → µ + µ − ) relative to the estimates in the papers in question, as stressed in [12], but can also provide additional enhancements.…”

“…They have been first considered in [5] and subsequently found to increase by orders of magnitude the branching ratios of the rare decays B 0 s,d → µ + µ − [1,2,3,4] and to decrease significantly the B 0 s -B 0 s mass difference ∆M s [6] relative to the expectations based on the SM. Since both these effects are caused by the same neutral Higgs boson mediated FCNC (see figs.…”

The soft supersymmetry-breaking Lagrangian: theory and applications

“…Higgs-mediated effects have been discussed for various FCNC processes including B → X s γ [235,237], leptonic and semileptonic B decays [257,258,259,260,261,262,263,264,265,266] as well as B 0 -B 0 mixing [267] either individually or combined [268,269]. See also e.g.…”

Longitudinal polarization asymmetry of leptons in pure leptonicBdecays

“…It has been already pointed out by several authors [1,2,3,4] that the pure leptonic B decays B q → ℓ + ℓ − (q = d, s and ℓ = e, µ, τ ) are very good probes to test new physics beyond the standard model (SM), mainly to reveal the Higgs sector. Those previous works were focused on the contributions induced by the scalar and pseudoscalar interactions realized in Higgs-doublets models.…”