A. Biswas

activity

20152026

most citedTo (b)e or not to (b)e: No electrons at LHCb

106 citations · 365 across the 27 of their papers we have counts for

collaborators

27 papers

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-ph2024

Optimised observables and new physics prospects in the penguin-mediated decays $B_{d (s)} \to K^{(*) 0} ϕ$

Aritra Biswas, Sébastien Descotes-Genon, Joaquim Matias +1

We study penguin-mediated $B ˉ_{d (s)} \to K ˉ^{* 0} (K^{* 0}) ϕ$ transitions, proposing a new optimised observable $L_{K^{*} ϕ}$ from the ratio of the corresponding branching ratios…

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-ph2023

A new puzzle in non-leptonic B decays

Aritra Biswas, Sébastien Descotes-Genon, Joaquim Matias +1

We propose a set of new optimized observables using penguin mediated $B ˉ_{d}$ and $B ˉ_{s}$ decays: $B ˉ_{d, s} \to K^{* 0} K ˉ^{* 0}$ , ${\bar B}_{d,s} \to K^{0} \bar{K}…

hep-ph2023★ 106 cited

To (b)e or not to (b)e: No electrons at LHCb

Marcel Algueró, Aritra Biswas, Bernat Capdevila +3

We discuss the impact of the recent LHCb update on the two lepton-flavour universality ratios $R_{K}$ and $R_{K^{*}}$ , and the CMS update of $B (B_{s} \to μ^{+} μ^{-})$ regarding the possibi…

hep-ph2023★ 22 cited

A new puzzle in non-leptonic B decays

Aritra Biswas, Sebastien Descotes-Genon, Joaquim Matias +1

We build a set of new observables using closely related non-leptonic penguin-mediated $B_{d}$ and $B_{s}$ decays: $B ˉ_{d, s} \to K^{* 0} K ˉ^{* 0}$ , ${\bar B}_{d,s}\to K^{0}\bar{K…

hep-ph2022★ 13 cited

Extractions of $∣ V_{u b} ∣/∣ V_{c b} ∣$ from a combined study of the exclusive $b \to u (c) ℓ ν_{ℓ}$ decays

Aritra Biswas, Soumitra Nandi, Ipsita Ray

We have extracted the ratio $∣ V_{u b} ∣/∣ V_{c b} ∣$ from a combined study of the available inputs on $B ˉ \to (π, ρ, ω) ℓ^{-} ν ˉ_{ℓ}$ and $\bar{B}(\bar{B}_s)\to (D^{(\ast)}, D_s…

hep-ph2022★ 10 cited

Study of the $b \to d ℓℓ$ transitions in the Standard Model and test of New Physics sensitivities

Aritra Biswas, Soumitra Nandi, Sunando Kumar Patra +1

After incorporating all the available experimental data and the most up-to-date Lattice and light cone sum rule (LCSR) inputs on the form factors, we analyze the exclusive $b\to u\…

hep-ph2021

Constraining New Physics with Possible Dark Matter Signatures from a Global CKM Fit

Aritra Biswas, Lopamudra Mukherjee, Soumitra Nandi +1

We constrain the parameters of a representative new physics model with possible dark matter (DM) signature from a global CKM fit analysis. The model has neutral quark current inter…

hep-ph2021★ 8 cited

A closer look at observables from exclusive semileptonic $B \to (π, ρ) ℓ ν_{ℓ}$ decays

Aritra Biswas, Soumitra Nandi

This article analyses the available inputs in $\btopilnu$ and $\btorholnu$ decays which include the measured values of differential rate in different $q^{2}$ -bins (lepton invariant m…

hep-ph2021★ 14 cited

A closer look at the extraction of $∣ V_{u b} ∣$ from $B \to π l ν$

Aritra Biswas, Soumitra Nandi, Sunando Kumar Patra +1

To extract the Cabibbo-Kobayashi-Maskawa (CKM) matrix element $∣ V_{u b} ∣$ , we have re-analyzed all the available inputs (data and theory) on the $B \to π l ν$ decays including the newly…

hep-ph2020★ 35 cited

New physics in $b \to s ℓℓ$ decays with complex Wilson coefficients

Aritra Biswas, Soumitra Nandi, Ipsita Ray +1

We perform a data-driven analysis of new physics (NP) effects in exclusive $b \to s ℓ^{+} ℓ^{-}$ decays in a model-independent effective theory approach with dimension six operato…

hep-ph2019★ 31 cited

Exhaustive Model Selection in $b \to s ℓℓ$ Decays: Pitting Cross-Validation against AIC $_{c}$

Srimoy Bhattacharya, Aritra Biswas, Soumitra Nandi +1

In the light of recent data, we study the new physics effects in the exclusive $b \to s ℓ^{+} ℓ^{-}$ decays from a model independent perspective. Different combinations of the dim…

hep-ph2019★ 4 cited

An in-depth analysis of $b \to c (s)$ semileptonic observables with possible $μ - τ$ mixing

Srimoy Bhattacharya, Aritra Biswas, Zaineb Calcuttawala +1

In a couple of recent publications ( arXiv:1706.08437 and arXiv:1712.01593 ), the authors attempted to achieve simultaneous explanation of the persistent flavor anomalies in $b\to…

hep-ph2018★ 10 cited

Collider signature of $V_{2}$ Leptoquark with $b \to s$ flavour observables

Aritra Biswas, Avirup Shaw, Abhaya Kumar Swain

The Leptoquark model has been instrumental in explaining the observed lepton flavour universality violating charged ( $b \to c$ ) and neutral ( $b \to s$ ) current anomalies that have be…

hep-ph2018

$b \to c l ν$ anomalies in light of vector and scalar interactions

Aritra Biswas

We perform a model independent analysis of the charged current $b \to c l ν$ anomalies under the presence of scalar and vector interactions. The analysis is carried out in two stages:…

hep-ph2018★ 23 cited

Collider signature of $U_{1}$ Leptoquark and constraints from $b \to c$ observables

Aritra Biswas, Dilip Kumar Ghosh, Nivedita Ghosh +2

One of the most popular models that is known to be able to solve the lepton flavour universality violating charged ( $b \to c$ ) and neutral current ( $b \to s$ ) anomalies is the Leptoq…

hep-ph2018★ 19 cited

$b \to c ℓ ν$ anomalies in light of extended scalar sectors

Aritra Biswas, Dilip Kumar Ghosh, Sunando Kumar Patra +1

Considering the recent experimental results on exclusive semileptonic $B$ meson decays showing sizable departure from their Standard Model prediction of lepton flavor universality…

hep-ph2017★ 18 cited

$R (D^{(*)})$ anomalies in light of Non-Minimal Universal Extra Dimension

Aritra Biswas, Sunando Kumar Patra, Avirup Shaw

We estimate contributions from Kaluza-Klein excitations of gauge bosons and physical charge scalar for the explanation of the lepton flavor universality violating excess in the rat…

hep-ph2017

Analyzing the mesonic spectrum using the method of Schottky anomaly

Aritra Biswas

A possible diagnostic is proposed which may be used to infer the different scales underlying the dynamical structure of hadronic resonances using the phenomenon of Schottky anomaly…

hep-ph2017★ 4 cited

Searching for New physics in Charm Radiative decays

Aritra Biswas, Sanjoy Mandal, Nita Sinha

We show that for a heavy vector-like quark model with a down type isosinglet, branching ratio for $c \to u γ$ decay is enhanced by more than $O (1 0^{2})$ as compared t…

physics.ins-det2017★ 13 cited

Cryogenic magnetic coil and superconducting magnetic shield for neutron electric dipole moment searches

S. Slutsky, C. M. Swank, A. Biswas +10

A magnetic coil operated at cryogenic temperatures is used to produce spatial, relative field gradients below 6 ppm/cm, stable for several hours. The apparatus is a prototype of th…

hep-ph2016

New physics in neutral $D \to VV$ modes

Aritra Biswas, Sanjoy Mandal

We show that it is possible to construct observables to test the existence of new physics in a model independent way for the $D^{0} \to V V$ modes using a time-dependent analys…

hep-ph2015★ 3 cited

Schottky Anomaly and Hadronic Spectrum

Aritra Biswas, M V N Murthy, Nita Sinha

We show that the hadronic "heat capacity" calculated as a function of temperature may be used to infer the possible presence of different scales underlying the dynamical structure…

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

Optimised observables and new physics prospects in the penguin-mediated decays Bd(s)​→K(∗)0ϕ

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

A new puzzle in non-leptonic B decays

To (b)e or not to (b)e: No electrons at LHCb

A new puzzle in non-leptonic B decays

Extractions of ∣Vub​∣/∣Vcb​∣ from a combined study of the exclusive b→u(c)ℓνℓ​ decays

Study of the b→dℓℓ transitions in the Standard Model and test of New Physics sensitivities

Constraining New Physics with Possible Dark Matter Signatures from a Global CKM Fit

A closer look at observables from exclusive semileptonic B→(π,ρ)ℓνℓ​ decays

A closer look at the extraction of ∣Vub​∣ from B→πlν

New physics in b→sℓℓ decays with complex Wilson coefficients

Exhaustive Model Selection in b→sℓℓ Decays: Pitting Cross-Validation against AICc​

An in-depth analysis of b→c(s) semileptonic observables with possible μ−τ mixing

Collider signature of V2​ Leptoquark with b→s flavour observables

b→clν anomalies in light of vector and scalar interactions

Collider signature of U1​ Leptoquark and constraints from b→c observables

b→cℓν anomalies in light of extended scalar sectors

R(D(∗)) anomalies in light of Non-Minimal Universal Extra Dimension

Analyzing the mesonic spectrum using the method of Schottky anomaly

Searching for New physics in Charm Radiative decays

Cryogenic magnetic coil and superconducting magnetic shield for neutron electric dipole moment searches

New physics in neutral D→VV modes

Schottky Anomaly and Hadronic Spectrum

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

Optimised observables and new physics prospects in the penguin-mediated decays $B_{d (s)} \to K^{(*) 0} ϕ$

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

Extractions of $∣ V_{u b} ∣/∣ V_{c b} ∣$ from a combined study of the exclusive $b \to u (c) ℓ ν_{ℓ}$ decays

Study of the $b \to d ℓℓ$ transitions in the Standard Model and test of New Physics sensitivities

A closer look at observables from exclusive semileptonic $B \to (π, ρ) ℓ ν_{ℓ}$ decays

A closer look at the extraction of $∣ V_{u b} ∣$ from $B \to π l ν$

New physics in $b \to s ℓℓ$ decays with complex Wilson coefficients

Exhaustive Model Selection in $b \to s ℓℓ$ Decays: Pitting Cross-Validation against AIC $_{c}$

An in-depth analysis of $b \to c (s)$ semileptonic observables with possible $μ - τ$ mixing

Collider signature of $V_{2}$ Leptoquark with $b \to s$ flavour observables

$b \to c l ν$ anomalies in light of vector and scalar interactions

Collider signature of $U_{1}$ Leptoquark and constraints from $b \to c$ observables

$b \to c ℓ ν$ anomalies in light of extended scalar sectors

$R (D^{(*)})$ anomalies in light of Non-Minimal Universal Extra Dimension

New physics in neutral $D \to VV$ modes