Shantanu Sahoo

activity

20202026

most citedAnalyzing the semileptonic and nonleptonic

B_{c} \to J / ψ, η_{c}

decays

6 citations · 11 across the 8 of their papers we have counts for

collaborators

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8 papers · 1 filter

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

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

Karthik Jain, Tarun Kumar, Barilang Mawlong +1

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

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 $B \to D^{(*)} ℓ ν ˉ$ typically rely on the assumption that the missing energy originates from a massless neutrino, as predic…

hep-ph2024★ 4 cited

An Imperative study of the angular observables in $Λ_{b} \to Λ_{c}^{+} (\to Λ π^{+}) ℓ^{-} ν ˉ_{ℓ}$ decay and probing the footprint of new physics

Soumitra Nandi, Shantanu Sahoo, Ria Sain

We study the four-fold angular distribution of the semileptonic $Λ_{b} \to Λ_{c}^{+} (\to Λ π^{+}) ℓ^{-} ν ˉ_{ℓ}$ decay and find out analytical expressions for various asymmetric an…

hep-ph2023★ 6 cited

Analyzing the semileptonic and nonleptonic $B_{c} \to J / ψ, η_{c}$ 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 $B_{c} \to J / ψ$ form factors, we have obtained the $B_{c} \to η_{c}$ form factors usi…

hep-ph2020★ 1 cited

'Deep' Dive into $b \to c$ Anomalies: Standardized and Future-proof Model Selection Using Self-normalizing Neural Networks

Srimoy Bhattacharya, Soumitra Nandi, Sunando Kumar Patra +1

Noting the erroneous proclivity of information-theoretic approaches, like the Akaike information criterion (AIC), to select simpler models while performing model selection with a s…

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

A Comprehensive Analysis of Bs​→Ds∗∗​ℓνℓ​ 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

An Imperative study of the angular observables in Λb​→Λc+​(→Λπ+)ℓ−νˉℓ​ decay and probing the footprint of new physics

Analyzing the semileptonic and nonleptonic Bc​→J/ψ,ηc​ decays

'Deep' Dive into b→c Anomalies: Standardized and Future-proof Model Selection Using Self-normalizing Neural Networks

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

A Comprehensive Analysis of $B_{s} \to D_{s}^{**} ℓ ν_{ℓ}$ 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

An Imperative study of the angular observables in $Λ_{b} \to Λ_{c}^{+} (\to Λ π^{+}) ℓ^{-} ν ˉ_{ℓ}$ decay and probing the footprint of new physics

Analyzing the semileptonic and nonleptonic $B_{c} \to J / ψ, η_{c}$ decays

'Deep' Dive into $b \to c$ Anomalies: Standardized and Future-proof Model Selection Using Self-normalizing Neural Networks