S. Nandi

collaborators

4 papers

hep-ph2026

Signatures of Invisible Fermions in $Λ_{b}^{0} \to Λ_{c}^{+} ℓ^{-} X ˉ_{inv}$ Decays

Shantanu Sahoo, Soumitra Nandi

We investigate the effects of a massive invisible fermion in $Λ_{b}^{0} \to Λ_{c}^{+} ℓ^{-} X ˉ_{inv}$ decays using a model-independent weak effective theory. Through a comprehens…

hep-ph2026

Precision Study of Semileptonic and Non-Leptonic $B_{c}$ Decays to $η_{c}$ and P Wave Charmonia

Aritra Biswas, Soumitra Nandi, Shantanu Sahoo

We analyse semileptonic and non-leptonic decays of the $B_{c}$ meson into P wave charmonium states. The analytic expressions for the transition form factors are taken from NRQCD, whi…

hep-ph2026

Study of Form Factors and Observables in $B_{c}^{-} \to D_{s}^{-} ℓ^{+} ℓ^{-}$ and $B_{c}^{-} \to D_{s}^{-} ν ν ˉ$ decays

Utsab Dey, Soumitra Nandi

We investigate the decays $B_{c}^{-} \to D_{s}^{(*) -} ℓ^{+} ℓ^{-}$ and $B_{c}^{-} \to D_{s}^{(*) -} ν ν ˉ$ within the Standard Model (SM), employing perturbative QCD form fa…

hep-ph2025

Correlated study on some $B_{c} \to P$ and $B_{c} \to S$ wave channels in light of new inputs

Utsab Dey, Soumitra Nandi

This study investigates the decay modes of the $B_{c}$ meson, focusing on semileptonic and nonleptonic decay into S and P wave charmonia. The primary objective is to extract the shap…

Signatures of Invisible Fermions in Λb0​→Λc+​ℓ−Xˉinv​ Decays

Precision Study of Semileptonic and Non-Leptonic Bc​ Decays to ηc​ and P Wave Charmonia

Study of Form Factors and Observables in Bc−​→Ds∗−​ℓ+ℓ− and Bc−​→Ds∗−​ννˉ decays

Correlated study on some Bc​→ P and Bc​→ S wave channels in light of new inputs

Signatures of Invisible Fermions in $Λ_{b}^{0} \to Λ_{c}^{+} ℓ^{-} X ˉ_{inv}$ Decays

Precision Study of Semileptonic and Non-Leptonic $B_{c}$ Decays to $η_{c}$ and P Wave Charmonia

Study of Form Factors and Observables in $B_{c}^{-} \to D_{s}^{-} ℓ^{+} ℓ^{-}$ and $B_{c}^{-} \to D_{s}^{-} ν ν ˉ$ decays

Correlated study on some $B_{c} \to P$ and $B_{c} \to S$ wave channels in light of new inputs