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

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25 papers · 1 filter

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…

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…

hep-ph2015★ 7 cited

High scale mixing relations as a natural explanation for large neutrino mixing

Gauhar Abbas, Mehran Zahiri Abyaneh, Aritra Biswas +4

The origin of small mixing among the quarks and a large mixing among the neutrinos has been an open question in particle physics. In order to answer this question, we postulate gen…

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

New physics in neutral D→VV modes

Schottky Anomaly and Hadronic Spectrum

High scale mixing relations as a natural explanation for large neutrino mixing

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