Improved model-independent analysis of semileptonic and radiative rare B decays
By A. Ali, E. Lunghi, C. Greub, G. Hiller. 2001
198 citations recorded by the source corpus.
We update the branching ratios for the inclusive decays $\stackrel{\ensuremath{\rightarrow}}{B}{X}_{s}{l}^{+}{l}^{\ensuremath{-}}$ and the exclusive decays $\stackrel{\ensuremath{\rightarrow}}{B}{(K,K}^{*}{)l}^{+}{l}^{\ensuremath{-}},$ with $l=e, \ensuremath{\mu},$ in the standard model by including the explicit $O({\ensuremath{\alpha}}_{s})$ and ${\ensuremath{\Lambda}}_{\mathrm{QCD}}{/m}_{b}$ corrections. This framework is used in conjunction with the current measurements of the branching ratios for $\stackrel{\ensuremath{\rightarrow}}{B}{X}_{s}\ensuremath{\gamma}$ and $\stackrel{\ensuremath{\rightarrow}}{B}{\mathrm{Kl}}^{+}{l}^{\ensuremath{-}}$ decays and upper limits on the branching ratios for the decays $\stackrel{\ensuremath{\rightarrow}}{B}{(K}^{*}{,X}_{s}{)l}^{+}{l}^{\ensuremath{-}}$ to work out bounds on the Wilson coefficients ${C}_{7},$ ${C}_{8},$ ${C}_{9}$ and ${C}_{10}$ appearing in the effective Hamiltonian formalism. The resulting bounds are found to be consistent with the predictions of the standard model and some variants of supersymmetric theories. We illustrate the constraints on supersymmetric parameters that the current data on rare B decays implies in the context of the minimal flavor violating model and in more general scenarios admitting additional flavor changing mechanisms. Precise measurements of the dilepton invariant mass distributions in the decays $\stackrel{\ensuremath{\rightarrow}}{B}{(X}_{s}{,K}^{*}{,K)l}^{+}{l}^{\ensuremath{-}},$ in particular in the lower dilepton mass region, and the forward-backward asymmetry in the decays $\stackrel{\ensuremath{\rightarrow}}{B}{(X}_{s}{,K}^{*}{)l}^{+}{l}^{\ensuremath{-}},$ will greatly help in discriminating among the SM and various supersymmetric theories.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/5fcdc55d93dd34a124c4d0f17541ef177d2f218e
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Nuclear and High Energy Physics
Citations in the corpus
- Angular analysis and differential branching fraction of the decay $B^0_s\toφμ^+μ^-$ (2015, unknown): “[36] with updated form factors from ref.”
- Rare $B$ Decays as Tests of the Standard Model (2016, methodology): “These analysis remove the q(2) regions around the J/ψ and ψ′ masses and correct for the excluded region using a phenomenological model for the shape of the differential decay distribution as a function of q(2) (in the absence of the narrow charmonimum states) [167, 182].”
- Flavor Physics in the Quark Sector (2009, result): “Total branching fractions measured by BABAR, Belle, and CDF are in agreement with each other and the SM predictions [772,794].”
- Present Status of Inclusive Rare B Decays (2002, methodology): “Recently these analyses have been updated in [154] based on the new experimental data of the semi-leptonic decays and on partial results in the NNLL theoretical predictions.”