Analysis of the semileptonic $$B\rightarrow K_1 \ell ^+ \ell ^-$$ B → K 1 ℓ + ℓ - transitions and non-leptonic $$B \rightarrow K_1 \gamma $$ B → K 1 γ decay in the AdS/QCD correspondence

1 B → K ∗ γ decay on APE ∗

We present results for the radiative decay B → K * γ, obtained by using the Clover action at β = 6.0 on APE. The compatibility between the scaling laws predicted by the Heavy Quark Effective Theory (HQET) and pole dominance is discussed. The final result depends crucially on the assumed q 2-dependence of the form factors.

Analysis of the semileptonic B c → B ∗ u l + l − decay from QCD sum rules

We analyze the semileptonic Bc → B∗ ull decay in the frame work of the Standard Model. We calculate the Bc to B ∗ u transition form factors in QCD sum rules. Analytical expressions for the spectral densities and gluon condensates are presented. The branching ratio of the Bc → B∗ ull decay is calculated, and it is obtained that this decay can be detectable at forthcoming LHC machines. PACS numbe...

Probing right - handed currents in B → K ∗ l + l − transitions

QCD sum rule analysis of the decays B-->Kl+l- and B-->K*l+l-

We use QCD sum rules to calculate the hadronic matrix elements governing the rare decays B → Kl+l− and B → K∗l+l− induced by the flavour changing neutral current b → s transition. We also study relations among semileptonic and rare B → K(∗) decay form factors. The analysis of the invariant mass distribution of the lepton pair in B → K(∗)l+l− and of the angular asymmetry in B → K∗l+l− provides u...

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...