B. Mohanty
A5065762505- High-Energy Particle Collisions Research
- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- Nuclear reactor physics and engineering
- Particle Detector Development and Performance
- Dark Matter and Cosmic Phenomena
- Cosmology and Gravitation Theories
- Radiation Detection and Scintillator Technologies
- Stochastic processes and statistical mechanics
- Statistical Methods and Bayesian Inference
- Atomic and Subatomic Physics Research
- Nuclear physics research studies
- Pulsars and Gravitational Waves Research
- Theoretical and Computational Physics
- Neutrino Physics Research
- Superconducting Materials and Applications
- Cold Atom Physics and Bose-Einstein Condensates
- Markov Chains and Monte Carlo Methods
- Statistical Mechanics and Entropy
- CCD and CMOS Imaging Sensors
- Astrophysics and Cosmic Phenomena
- X-ray Spectroscopy and Fluorescence Analysis
- Black Holes and Theoretical Physics
- Particle Accelerators and Free-Electron Lasers
- Fusion materials and technologies
Homi Bhabha National Institute
2018-2025
National Institute of Science Education and Research
2016-2025
A. Alikhanyan National Laboratory
2015-2024
Aligarh Muslim University
2020-2024
Central China Normal University
2016-2024
University of California, Riverside
2022-2024
Ball State University
2023-2024
Argonne National Laboratory
2016-2024
Frankfurt Institute for Advanced Studies
2024
Creighton University
2004-2024
Matter described by Quantum Chromodynamics (QCD), the theory of strong interactions, may undergo phase transitions when its temperature and chemical potentials are varied. QCD at finite is studied in laboratory colliding heavy-ions varying beam energies. We present a test non-perturbative domain through comparison thermodynamic fluctuations predicted lattice computations with experimental data baryon number distributions high-energy heavy-ion collisions. This study provides evidence for...
We present the first limits on inelastic electron-scattering dark matter and photon absorption using a prototype SuperCDMS detector having charge resolution of 0.1 electron-hole pairs (CDMS HVeV, 0.93 g CDMS high-voltage device). These electron-recoil significantly improve experimental constraints particles with masses as low 1 MeV/c^{2}. demonstrate sensitivity to photons competitive other leading approaches but substantially less exposure (0.49 d). results scientific potential...
The SuperCDMS experiment is designed to directly detect weakly interacting massive particles (WIMPs) that may constitute the dark matter in our Galaxy. During its operation at Soudan Underground Laboratory, germanium detectors were run CDMSlite mode gather data sets with sensitivity specifically for WIMPs masses ${<}$10 GeV/$c^2$. In this mode, a higher detector-bias voltage applied amplify phonon signals produced by drifting charges. This paper presents studies of experimental noise and...
This article presents an analysis and the resulting limits on light dark matter inelastically scattering off of electrons, photon axion-like particle absorption, using a second-generation SuperCDMS high-voltage eV-resolution detector. The 0.93 gram Si detector achieved 3 eV phonon energy resolution; for bias 100 V, this corresponds to charge resolution 3% single electron-hole pair. spectrum is reported from blind with 1.2 gram-days exposure acquired in above-ground laboratory. With carrier...
We present limits on spin-independent dark matter-nucleon interactions using a 10.6 g Si athermal phonon detector with baseline energy resolution of ${\ensuremath{\sigma}}_{E}=3.86\ifmmode\pm\else\textpm\fi{}0.04(\mathrm{stat}{)}_{\ensuremath{-}0.00}^{+0.19}(\mathrm{syst})\text{ }\text{ }\mathrm{eV}$. This exclusion analysis sets the most stringent scattering cross-section achieved by cryogenic for matter particle masses from 93 to $140\text{ }\mathrm{MeV}/{c}^{2}$, raw exposure 9.9 d...
This article presents constraints on dark-matter-electron interactions obtained from the first underground data-taking campaign with multiple SuperCDMS HVeV detectors operated in same housing. An exposure of <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mn>7.63</a:mn><a:mtext> </a:mtext><a:mtext> </a:mtext><a:mi mathvariant="normal">g</a:mi><a:mtext>−</a:mtext><a:mi>days</a:mi></a:mrow></a:math> is used to set upper limits scattering cross section for dark...
We report the result of a blinded search for Weakly Interacting Massive Particles (WIMPs) using majority SuperCDMS Soudan dataset. With an exposure 1690 kg days, single candidate event is observed, consistent with expected backgrounds. This analysis (combined previous Ge results) sets upper limit on spin-independent WIMP--nucleon cross section $1.4 \times 10^{-44}$ ($1.0 10^{-44}$) cm$^2$ at 46 GeV/$c^2$. These results set strongest limits WIMP--germanium-nucleus interactions masses $>$12
The Cryogenic Dark Matter Search low ionization threshold experiment (CDMSlite) searches for interactions between dark matter particles and germanium nuclei in cryogenic detectors. has achieved a energy with improved sensitivity to low-mass (<10 GeV/c$^2$) particles. We present an analysis of the final CDMSlite data set, taken different detector than was used two previous sets. This includes "salting" method protect against bias, noise discrimination, background modeling, use profile...
Moments (Variance ($\sigma^2$), Skewness($S$), Kurtosis($\kappa$)) of multiplicity distributions conserved quantities, such as net-baryon,net-charge and net-strangeness, are predicted to be sensitive the correlation length system connected thermodynamic susceptibilities computed in Lattice QCD Hadron Resonance Gas (HRG) model. In this paper, we present several measurement artifacts that could lead volume fluctuation auto-correlation effects moment analysis net-proton heavy-ion collisions...
We review the chemical and kinetic freeze-out conditions in high energy heavy-ion collisions for AGS, SPS, RHIC, LHC energies. Chemical parameters are obtained using produced particle yields central while corresponding transverse momentum distributions of particles. For freeze-out, different scenarios discussed such as single double/flavor dependent surfaces. Kinetic by doing hydrodynamic inspired blast wave fit to distributions. The beam centrality dependence per charged multiplicity...
This report summarizes the presentations and discussions during Rapid Reaction Task Force "Dynamics of critical fluctuations: Theory – phenomenology heavy-ion collisions", which was organized by ExtreMe Matter Institute EMMI held at GSI, Darmstadt, Germany in April 2019. We address current understanding dynamics fluctuations QCD their measurement collision experiments. In addition, we outline what might be learned from studying correlations other physical systems, such as cold atomic gases.
Abstract This paper reports the development and testing of n-type silicon pad array detectors intended for Forward Calorimeter (FoCal) detector, which is an upgrade ALICE detector at CERN, scheduled data taking in Run 4 (2029–2034). The FoCal will consist a hadronic electromagnetic calorimeter. part made up alternating tungsten absorber layers, read out using High Granularity Readout Chip (HGCROC). covers various processes involved design, fabrication detector. current vs voltage (IV)...
A measurement of direct photon production in ${}^{208}\mathrm{Pb}{+}^{208}\mathrm{Pb}$ collisions at $158A$ GeV has been carried out the CERN WA98 experiment. The invariant yield photons central is extracted as a function transverse momentum interval $0.5<{p}_{T}<4\mathrm{GeV}/c$. significant signal, compared to statistical and systematical errors, seen ${p}_{T}>1.5\mathrm{GeV}/c$. result constitutes first observation ultrarelativistic heavy-ion collisions. It could be for diagnosis...
We present an analysis of electron recoils in cryogenic germanium detectors operated during the SuperCDMS Soudan experiment. The data are used to set new constraints on axioelectric coupling axionlike particles and kinetic mixing parameter dark photons, assuming respective species constitutes all galactic matter. This study covers mass range from $40\text{ }\text{ }\mathrm{eV}/{c}^{2}$ $500\text{ }\mathrm{keV}/{c}^{2}$ for both candidates, excluding previously untested space masses below...
We present the first results using STAR detector from Beam Energy Scan (BES) program at Relativistic Heavy-Ion Collider (RHIC).In this program, Au ion collisions center of mass energies ( √ s NN ) 7.7, 11.5 and 39 GeV allowed RHIC to extend study QCD phase diagram baryonic chemical potential values 20 MeV about 400 MeV.For high net-baryon density matter midrapidity, formed in these collisions, we report several interesting measurements.These include observation difference between...
We discuss the production of light nuclei in heavy ion collisions within a multiple freezeout scenario. Thermal parameters extracted from fits to observed hadron yields are used predict multiplicities nuclei. Ratios strange nonstrange found be most sensitive details chemical freezeout. The well-known disagreement between data ${}_{\ensuremath{\Lambda}}^{3}\text{H}{/}^{3}\text{He}$ and $\overline{{}_{\ensuremath{\Lambda}}^{3}\text{H}{/}^{3}\text{He}}$ at $\sqrt{{s}_{NN}}=200$ GeV models based...
We extract the freezeout hypersurface in Pb-Pb collisions at $\sqrt{s_{\rm NN}}=$ 2760 GeV CERN Large Hadron Collider by analysing data on transverse momentum spectra within a unified model for chemical and kinetic freezeout. The study has been done two different schemes of freezeout, single where all hadrons together versus double those with non-zero strangeness content have parameters compared to non-strange ones. demonstrate that is better described latter scenario. obtain strange which...
Two-particle correlations of direct photons were measured in central 208Pb+208Pb collisions at 158A GeV. The invariant interferometric radii extracted for 100<K(T)<300 MeV/c and compared to from charged pion correlations. yield soft photons, K(T)<300 MeV/c, was the correlation strength theoretical calculations.
Predictions of elliptic flow (v2) and nuclear modification factor (RAA) are provided as a function centrality in U+U collisions at sNN=200 GeV. Since the 238U nucleus is naturally deformed, one could adjust properties fireball, density duration hot dense system, for example, high energy by carefully selecting colliding geometry. Within our Monte Carlo Glauber based approach, v2 with respect to reaction plane v2RP consistent that Au+Au collisions, while participant v2PP increases ∼30–60% top...
We have compared the experimental data on charged-particle elliptic flow parameter (${v}_{2}$) in Au $+$ collisions at midrapidity for $\sqrt{{s}_{\mathrm{NN}}}=9.2$, $19.6$, $62.4$, and $200$ GeV with results from various models heavy-ion such as ultrarelativistic quantum molecular dynamics (UrQMD) model, a multiphase transport model (AMPT), jet interaction generator (HIJING). observe that average ${v}_{2}$ ($\ensuremath{\langle}{v}_{2}\ensuremath{\rangle}$) UrQMD agrees well measurements...