I. Ray

activity

20202026

b \to s ℓℓ

decays with complex Wilson coefficients

35 citations · 87 across the 11 of their papers we have counts for

collaborators

11 papers

quant-ph2026

Sustained growth of quantum circuit complexity in many-body Hamiltonian dynamics

Wonjun Lee, Saúl Pilatowsky-Cameo, Soonwon Choi

The quantum circuit complexity of an evolving many-body quantum system is believed to exhibit a sustained growth, maintained for timescales much longer than the onset of thermaliza…

hep-ph2026

Anomalies in Hadronic $B \to V V$ Decays

Bhubanjyoti Bhattacharya, Marianne Bouchard, Alexandre Jean +2

Recently, a fit of charmless $B \to P P$ decays ( $B \in {B^{0}, B^{+}, B_{s}^{0}}$ , $P \in {π, K, η, η^{'}}$ ) to the latest data was performed under the assumption of flavour SU(3) symmet…

hep-ph2025★ 1 cited

Isospin-based EWP-tree Relations

Bhubanjyoti Bhattacharya, Marianne Bouchard, Alexandre Jean +2

In 1998, it was shown that, if flavor SU(3) symmetry [SU(3) $_{F}$ ] is assumed in charmless $B \to P P$ decays ( $P$ is a light pseudoscalar meson), some reduced matrix elements involvi…

hep-ph2025

Investigating non-local contributions in $B_{s} \to ϕ ℓ ˉ ℓ$ including higher-twist effects

M. S. A. Alam Khan, Rusa Mandal, Praveen S Patil +1

We analyze the impact of higher-twist three-particle $B_{s}$ -meson light-cone distribution amplitudes (LCDAs) on the non-local form factors for the $B_{s} \to ϕ ℓ ˉ ℓ$ transiti…

hep-ph2024★ 3 cited

Probing the inverse moment of $B_{s}$ -meson distribution amplitude via $B_{s} \to η_{s}$ form factors

Rusa Mandal, Praveen S Patil, Ipsita Ray

We investigate the inverse moment of the $B_{s}$ -meson light-cone distribution amplitude (LCDA), denoted as $λ_{B_{s}}$ and defined within the heavy quark effective theory, through the…

hep-ph2023★ 9 cited

Constraining inverse moment of $B$ -meson distribution amplitude using Lattice QCD data

Rusa Mandal, Soumitra Nandi, Ipsita Ray

We constrain the inverse moment of the $B$ -meson light-cone distribution amplitude (LCDA), $λ_{B}$ in heavy quark effective theory, using form factor estimates from Lattice QCD colla…

hep-ph2023★ 2 cited

Test of new physics effects in $B ˉ \to (D^{(*)}, π) ℓ^{-} ν ˉ_{ℓ}$ decays with heavy and light leptons

Ipsita Ray, Soumitra Nandi

We study the $B ˉ \to D (D^{*}) ℓ^{-} ν ˉ_{ℓ}$ decays based on the up-to-date available inputs from experiments and the lattice. First, we review the standard model (SM) predi…

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★ 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…

Sustained growth of quantum circuit complexity in many-body Hamiltonian dynamics

Anomalies in Hadronic B→VV Decays

Isospin-based EWP-tree Relations

Investigating non-local contributions in Bs​→ϕℓˉℓ including higher-twist effects

Probing the inverse moment of Bs​-meson distribution amplitude via Bs​→ηs​ form factors

Constraining inverse moment of B-meson distribution amplitude using Lattice QCD data

Test of new physics effects in Bˉ→(D(∗),π)ℓ−νˉℓ​ decays with heavy and light leptons

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

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

New physics in b→sℓℓ decays with complex Wilson coefficients