Shantanu Sahoo

activity

20242026

collaborators

6 papers

hep-ph2026

Precision Study of Semileptonic and Non-Leptonic $B_{c}$ Decays to $I^\cdot_{c}$ 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

A Comprehensive Analysis of $B_{s} \to D_{s}^{**} ℓ I^½_{ℓ}$ Decays Within and Beyond the Standard Model

Karthik Jain, Tarun Kumar, Barilang Mawlong +1

We examine the exclusive semileptonic decays $B_{s} \to D_{s}^{**} ℓ I^½_{ℓ}$ , with $D_{s}^{**} =$ ${D_{s 0}^{*}, D_{s 1}^{*}, D_{s 1}, D_{s 2}^{*}}$ , within the Standard Model and bey…

hep-ph2026

Probing Invisible Fermions in $B \to D^{*} ℓ X_{inv}$ via Angular Observables

Lipika Kolay, Soumitra Nandi, Shantanu Sahoo

Semileptonic decays $B \to D^{*} ℓ X_{inv}$ provide a sensitive probe of light invisible particles, such as sterile neutrinos or dark-sector fermions. Within a general we…

hep-ph2026

Probing Light Dark Fermions in $B \to D^{(*)} ℓ X_{inv}$ via Rate Distributions

Lipika Kolay, Soumitra Nandi, Shantanu Sahoo +1

Experimental analyses of the semileptonic decays $B \to D^{(*)} ℓ I^ˉ ½$ typically rely on the assumption that the missing energy originates from a massless neutrino, as predi…

hep-ph2025

Analyzing the semileptonic and nonleptonic $B_{c} \to J / I ¨ , I^\cdot_{c}$ decays

Aritra Biswas, Soumitra Nandi, Shantanu Sahoo

This study focuses on the decay of the $B_{c}$ meson to S-wave charmonia. Starting with lattice inputs on $B_{c} \to J / I ¨ $ form factors, we have obtained the $B_{c} \to I^\cdot_{c}$ form factors u…

hep-ph2024

An Imperative study of the angular observables in $I^_{b} \to I^_{c}^{+} (\to I^ I ¨ ^{+}) ℓ^{-} I^ˉ ½_{ℓ}$ decay and probing the footprint of new physics

Soumitra Nandi, Shantanu Sahoo, Ria Sain

We study the four-fold angular distribution of the semileptonic $I^_{b} \to I^_{c}^{+} (\to I^ I ¨ ^{+}) ℓ^{-} I^ˉ ½_{ℓ}$ decay and find out analytical expressions for various asymmetr…

Precision Study of Semileptonic and Non-Leptonic Bc​ Decays to I^⋅c​ and P Wave Charmonia

A Comprehensive Analysis of Bs​→Ds∗∗​ℓI^½ℓ​ Decays Within and Beyond the Standard Model

Probing Invisible Fermions in B→D∗ℓXinv​ via Angular Observables

Probing Light Dark Fermions in B→D(∗)ℓXinv​ via Rate Distributions

Analyzing the semileptonic and nonleptonic Bc​→J/I¨,I^⋅c​ decays

An Imperative study of the angular observables in I^b​→I^c+​(→I^I¨+)ℓ−I^ˉ½ℓ​ decay and probing the footprint of new physics

Precision Study of Semileptonic and Non-Leptonic $B_{c}$ Decays to $I^\cdot_{c}$ and P Wave Charmonia

A Comprehensive Analysis of $B_{s} \to D_{s}^{**} ℓ I^½_{ℓ}$ Decays Within and Beyond the Standard Model

Probing Invisible Fermions in $B \to D^{*} ℓ X_{inv}$ via Angular Observables

Probing Light Dark Fermions in $B \to D^{(*)} ℓ X_{inv}$ via Rate Distributions

Analyzing the semileptonic and nonleptonic $B_{c} \to J / I ¨ , I^\cdot_{c}$ decays

An Imperative study of the angular observables in $I^_{b} \to I^_{c}^{+} (\to I^ I ¨ ^{+}) ℓ^{-} I^ˉ ½_{ℓ}$ decay and probing the footprint of new physics