S. Choudhury

activity

20112025

B^{+} \to K^{+} ν ν ˉ

decays

90 citations · 169 across the 16 of their papers we have counts for

collaborators

19 papers

hep-ex2025★ 4 cited

Search for a Dark Higgs Boson Produced in Association with Inelastic Dark Matter at the Belle II Experiment

Belle II Collaboration, I. Adachi, L. Aggarwal +437

Inelastic dark matter models that have two dark matter particles and a massive dark photon can reproduce the observed relic dark matter density without violating cosmological limit…

hep-ex2024★ 1 cited

Measurement of $B \to K^{*} (892) γ$ decays at Belle II

Belle II Collaboration, I. Adachi, L. Aggarwal +451

We present measurements of $B \to K^{*} (892) γ$ decays using $365 fb^{- 1}$ of data collected from 2019 to 2022 by the Belle~II experiment at the SuperKEKB asymmetric-energy…

hep-ex2024

Study of $Υ (10753)$ decays to $π^{+} π^{-} Υ (n S)$ final states at Belle II

Belle II Collaboration, I. Adachi, L. Aggarwal +393

We present an analysis of the process $e^{+} e^{-} \to π^{+} π^{-} Υ (n S)$ (where $n$ = 1, 2, or 3) reconstructed in $19.6$ $f b^{- 1}$ of Belle II data during a special run of the…

physics.ins-det2023★ 4 cited

Timing Performance of the CMS High Granularity Calorimeter Prototype

CMS HGCAL collaboration

This paper describes the experience with the calibration, reconstruction and evaluation of the timing capabilities of the CMS HGCAL prototype in the beam tests in 2018. The calibra…

hep-ex2023★ 90 cited

Evidence for $B^{+} \to K^{+} ν ν ˉ$ decays

Belle II Collaboration, I. Adachi, K. Adamczyk +452

We search for the rare decay $B^{+} \to K^{+} ν ν ˉ$ in a $362 fb^{- 1}$ sample of electron-positron collisions at the $Υ (4 S)$ resonance collected with the Belle II det…

hep-ex2023

Measurement of Angular Coefficients of $B ˉ \to D^{*} ℓ ν ˉ_{ℓ}$ : Implications for $∣ V_{c b} ∣$ and Tests of Lepton Flavor Universality

Belle Collaboration, M. T. Prim, F. Bernlochner +158

We measure the complete set of angular coefficients $J_{i}$ for exclusive $B ˉ \to D^{*} ℓ ν ˉ_{ℓ}$ decays ( $ℓ = e, μ$ ). Our analysis uses the full $711 fb^{- 1}$ …

nucl-ex2022★ 11 cited

Beam energy dependence of the linear and mode-coupled flow harmonics in Au+Au collisions

STAR Collaboration, B. E. Aboona, J. Adam +341

The linear and mode-coupled contributions to higher-order anisotropic flow are presented for Au+Au collisions at $s_{NN}$ = 27, 39, 54.4, and 200 GeV and compared t…

nucl-ex2022★ 2 cited

Beam Energy Dependence of Fifth and Sixth-Order Net-proton Number Fluctuations in Au+Au Collisions at RHIC

STAR Collaboration, B. E. Aboona, J. Adam +357

We report the beam energy and collision centrality dependence of fifth and sixth order cumulants ( $C_{5}$ , $C_{6}$ ) and factorial cumulants ( $κ_{5}$ , $κ_{6}$ ) of net-proton and pro…

physics.acc-ph2022★ 13 cited

Snowmass 2021 White Paper on Upgrading SuperKEKB with a Polarized Electron Beam: Discovery Potential and Proposed Implementation

A. Accardi, D. M. Asner, H. Atmacan +105

Upgrading the SuperKEKB electron-positron collider with polarized electron beams opens a new program of precision physics at a center-of-mass energy of 10.58 GeV. This white paper…

nucl-ex2021

Measurements of Proton High Order Cumulants in 3 GeV Au+Au Collisions and Implications for the QCD Critical Point

STAR Collaboration, M. S. Abdallah, B. E. Aboona +388

We report cumulants of the proton multiplicity distribution from dedicated fixed-target Au+Au collisions at 3.0 GeV, measured by the STAR experiment in the kinematic acceptance of…

physics.ins-det2021★ 19 cited

Response of a CMS HGCAL silicon-pad electromagnetic calorimeter prototype to 20-300 GeV positrons

B. Acar, G. Adamov, C. Adloff +385

The Compact Muon Solenoid Collaboration is designing a new high-granularity endcap calorimeter, HGCAL, to be installed later this decade. As part of this development work, a protot…

physics.ins-det2020

Construction and commissioning of CMS CE prototype silicon modules

B. Acar, G. Adamov, C. Adloff +327

As part of its HL-LHC upgrade program, the CMS Collaboration is developing a High Granularity Calorimeter (CE) to replace the existing endcap calorimeters. The CE is a sampling cal…

physics.ins-det2020★ 10 cited

The DAQ system of the 12,000 Channel CMS High Granularity Calorimeter Prototype

B. Acar, G. Adamov, C. Adloff +327

The CMS experiment at the CERN LHC will be upgraded to accommodate the 5-fold increase in the instantaneous luminosity expected at the High-Luminosity LHC (HL-LHC). Concomitant wit…

hep-ex2020★ 2 cited

Studies of the semileptonic $B ˉ^{0} \to D^{*+} ℓ^{-} ν ˉ_{ℓ}$ and $B^{-} \to D^{0} ℓ^{-} ν ˉ_{ℓ}$ decay processes with 34.6 fb $^{- 1}$ of Belle II data

Belle II Collaboration, F. Abudinén, I. Adachi +542

We report measurements of the $B ˉ^{0} \to D^{*+} ℓ^{-} ν ˉ_{l}$ and $B^{-} \to D^{0} ℓ^{-} ν ˉ_{l}$ processes using 34.6 fb $^{- 1}$ of collision events recorded by the Belle…

hep-ex2020★ 1 cited

Measurement of the $B^{0}$ lifetime using fully reconstructed hadronic decays in the 2019 Belle II dataset

Belle II Collaboration, F. Abudinén, I. Adachi +534

This document presents the measurement of $B^{0}$ meson lifetimes using the 2019 Belle II dataset that corresponds to an integrated luminosity of $8.7 \pm 0.2$ fb $^{- 1}$ . Each candid…

hep-ex2019

Experimental determination of the isospin of $Λ_{c} (2765)^{+} / Σ_{c} (2765)^{+}$

The Belle Collaboration, A. Abdesselam, I. Adachi +454

We report an experimental determination of the isospin of $Λ_{c} (2765)^{+} / Σ_{c} (2765)^{+}$ using 980 fb $^{- 1}$ data in the $e^{+} e^{-}$ annihilation around $s = 10.6$ GeV collected by…

hep-ex2018★ 1 cited

Measurements of branching fraction and $C P$ asymmetry of the $B ˉ^{0} (B^{0}) \to K_{S}^{0} K^{\mp} π^{\pm}$ decay at Belle

A. Abdesselam, I. Adachi, K. Adamczyk +446

We report the measurement of the branching fraction and $C P$ asymmetry for the $B ˉ^{0} (B^{0}) \to K_{S}^{0} K^{\mp} π^{\pm}$ decay. The analysis is performed on a data sample of…

physics.ins-det2017★ 8 cited

Test Beam Performance Measurements for the Phase I Upgrade of the CMS Pixel Detector

M. Dragicevic, M. Friedl, J. Hrubec +481

A new pixel detector for the CMS experiment was built in order to cope with the instantaneous luminosities anticipated for the Phase~I Upgrade of the LHC. The new CMS pixel detecto…

hep-ph2011★ 3 cited

Analysis of the lepton polarisation asymmetries of $B ˉ \to K ˉ_{2} (1430) ℓ^{+} ℓ^{-}$ decay

S. R. Choudhury, A. S. Cornell, J. D. Roussos

In this work we will study the longitudinal polarisations of both leptons in the decay process $B ˉ \to K ˉ_{2} (1430) ℓ^{+} ℓ^{-}$ . This process has all the features…

Search for a Dark Higgs Boson Produced in Association with Inelastic Dark Matter at the Belle II Experiment

Measurement of B→K∗(892)γ decays at Belle II

Study of Υ(10753) decays to π+π−Υ(nS) final states at Belle II