ΔMs/ΔMd, sin2β and the angle γ in the presence of new ΔF=2 operators

Buras, Andrzej J.; Chankowski, Piotr H.; Rosiek, Janusz; Slawianowska, Lucja

doi:10.1016/s0550-3213(01)00517-x

Cited by 110 publications

(200 citation statements)

References 40 publications

Supporting

Mentioning

193

Contrasting

Order By: Relevance

“…[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.…”

Section: Introductionmentioning

confidence: 60%

“…In the supersymmetric scenario considered here, ∆M s is given by [6,13,17]. With respect to our previous analysis in [6] we have now included all resummed large tan β corrections to the relevant couplings as discussed in the previous section.…”

Section: ∆M S and Bmentioning

confidence: 99%

“…Since both these effects are caused by the same neutral Higgs boson mediated FCNC (see figs. 2 and 3), a correlation between them must exist [6]. This is particularly interesting as ∆M s and BR(B 0 s,d → µ + µ − ) can in principle be measured at the Tevatron and B-factories in the coming years.…”

Section: Introductionmentioning

confidence: 97%

“…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.…”

Section: Introductionmentioning

confidence: 99%

“…We present numerical results based on the formalism of [13] and explain them qualitatively using the formulae obtained in the SU(2)×U(1) symmetry limit. This allows us to analyze in detail the correlation between BR(B 0 s,d → µ + µ − ) and ∆M s pointed out in [6] taking into account theB → X s γ constraint.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

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

et al. 2002

Self Cite

View full text Add to dashboard Cite

Considering the MSSM with the CKM matrix as the only source of flavour violation and heavy supersymmetric particles at large tan β, we analyze the correlation between the increase of the rates of the decays B 0 s,d → µ + µ − and the suppression of ∆M s , that are caused by the enhanced flavour changing neutral Higgs couplings to down-type quarks. We give analytic formulae for the neutral and charged Higgs couplings to quarks including large tan β resummed corrections in the SU (2) × U (1) limit and comment briefly on the accuracy of this approximation. For 0.8 However, we point out that in the less likely scenario in which the squark mixing is so large that the neutral Higgs contributions dominate ∆M s , the rates for B 0 s,d → µ + µ − increase with increasing ∆M s and the bounds in question are weaker. Violation of all these correlations and bounds would indicate new sources of flavour violation.

show abstract

Section: Introductionmentioning

confidence: 60%

Section: ∆M S and Bmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

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

et al. 2002

Self Cite

View full text Add to dashboard Cite

show abstract

Waiting for Clear Signals of New Physics in B and K Decays

Buras

Springer Proceedings in Physics

Self Cite

View full text Add to dashboard Cite

We classify the extensions of the Standard Model (SM) according to the structure of local operators in the weak effective Hamiltonian and the presence or absence of new flavour and CP-violating interactions beyond those represented by the CKM matrix. In particular we review characteristic properties of models with minimal flavour violation (MFV), models with significant contributions from Higgs penguins and models with enhanced Z^0 penguins carrying a large new CP-violating phase. Within the latter models, the anomalous behaviour of certain B\to\pi K observables implies large departures from the SM predictions for rare and CP-violating K and B decays. Most spectacular is the enhancement of Br(K_L->pi^0 nu nubar) by one order of magnitude and a strong violation of the MFV relation (\sin2\beta)_{\pi\nu\bar\nu}=(\sin2\beta)_{\psi K_S}. On the other hand our prediction for (\sin2\beta)_{\phi K_S}\approx 0.9 differs from the Belle result by the sign but is consistent with the BaBar value. We give a personal shopping list for the coming years.Comment: Main latex-file, 4 figures, 22 page

show abstract

Enhanced Higgs mediated lepton flavour violating processes in the supersymmetric inverse seesaw model

Abada

Das

Weiland

2012

J. High Energ. Phys.

View full text Add to dashboard Cite

We study the impact of the inverse seesaw mechanism on several low-energy flavour violating observables such as τ → µµµ in the context of the Minimal Supersymmetric Standard Model. As a consequence of the inverse seesaw, the contributions of the right-handed sneutrinos significantly enhance the Higgs-mediated penguin diagrams. We find that different flavour violating branching ratios can be enhanced by as much as two orders of magnitude. We also comment on the impact of the Higgs-mediated processes on the leptonic B-meson decays and on the Higgs flavour violating decays.

show abstract

ΔMs/ΔMd, sin2β and the angle γ in the presence of new ΔF=2 operators

Cited by 110 publications

References 40 publications

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

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

Waiting for Clear Signals of New Physics in B and K Decays

Enhanced Higgs mediated lepton flavour violating processes in the supersymmetric inverse seesaw model

Contact Info

Product

Resources

About