Exclusive semileptonic rare decays $B \to K^{(*)} l^ + l^-$ in a SUSY SO(10) GUT
نویسندگان
چکیده
منابع مشابه
Exclusive Semileptonic Rare Decays B → (K,K∗)l+l− in Supersymmetric Theories
The invariant mass spectrum, forward-backward asymmetry, and lepton longitude polarization of the exclusive processes B → K(K)ll, l = μ, τ are analyzed under supersymmetric context. Special attention is given to the effects of neutral Higgs bosons. Our analysis shows that for the process B → Kμμ, the branching ratio can be quite largely modified by the effects neutral Higgs bosons and the forwa...
متن کاملExclusive Decays of B → K ( ∗ ) l + l − in the PQCD
We study the exclusive decays of B → Kll within the framework of the PQCD. We obtain the form factors for the B → K transitions in all allowed values of q, which agree with the lattice results. We find that our distributions of the decay rates and leptonic asymmetries are consistent with that given in the other QCD models in the literature.
متن کاملSemileptonic and Exclusive Rare B Decays
The exclusive rare decay B → Kγ takes place in a region of maximum recoil, q = 0, posing a problem for nonrelativistic quark models which are usually thought to be most reliable at zero recoil. The Bauer–Stech–Wirbel (BSW) model, formulated in the infinite–momentum–frame (IMF) formalism, is designed to work at q = 0. We show in this model that the ratio relating the decay B → Kγ and the q–spect...
متن کاملExclusive Semileptonic and Rare B Meson Decays in QCD
We present first complete results for the semileptonic and rare radiative form factors of B mesons weak decay into a light vector meson (ρ, ω,K, φ) in the light-cone sum rule approach. The calculation includes radiative corrections, higher twist corrections and SU(3) breaking effects. The theoretical uncertainty is investigated in detail. A simple parametrization of the form factors is given in...
متن کاملFactorization in exclusive semileptonic radiative B decays
We derive a new factorization relation for the semileptonic radiative decay B → πlνγ in the kinematical region of a slow pion |~ pπ | ∼ Λ and an energetic photon Eγ ≫ Λ, working at leading order in Λ/mb. In the limit of a soft pion, the nonperturbative matrix element appearing in this relation can be computed using chiral perturbation theory. We present a phenomenological study of this decay, w...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The European Physical Journal C
سال: 2005
ISSN: 1434-6044,1434-6052
DOI: 10.1140/epjc/s2005-02132-2