Showing papers by "Somnath Choudhury published in 2022"
TL;DR: In this paper , the angular distribution of the rare B-decay B → K 2 (→ Kπ)l l, which is expected to be observed soon, was studied using the standard effective Hamiltonian approach, and use the form factors that have already been estimated for the corresponding radiative decay B 2γ.
Abstract: In this paper we study the angular distribution of the rare B-decay B → K 2 (→ Kπ)l l, which is expected to be observed soon. We use the standard effective Hamiltonian approach, and use the form factors that have already been estimated for the corresponding radiative decay B → K 2γ. The additional form factors that come into play for the dileptonic channel are estimated using the large energy effective theory (LEET), which enables one to relate the additional form factors to the form factors for the radiative mode. Our results provide, just like in the case of the K(892) resonance, an opportunity for a straightforward comparison of the basic theory with experimental results, which may be expected in the near future for this channel.
TL;DR: In this paper , the authors discuss the effects of supersymmetry on various experimentally measurable quantities like decay rate, Forward backward asymmetry, various polarization asymmetries and CP violation asymmetry in exclusive channels B → πℓ + ℓ −.
Abstract: Semi-leptonic decays of B-meson are known to be very sensitive to the any new physics effects. Amongst various possibilities the transition at the quark level b → dℓ + ℓ − is more suited than b → sℓ + ℓ − for purpose of study of CP violation. Here in this work we will discuss the effects of Supersymmetry on the various experimentally measurable quantities like decay rate, Forward backward asymmetry, various polarization asymmetries and CP violation asymmetries in exclusive channels B → πℓ + ℓ − and B → ρℓ + ℓ − . We will be going to focus mainly on the Neutral Higgs boson effects on these measurements, with a view of eliciting information about possible CP-violating as well as non-hermitian terms in the effective Hamiltonian.