Basanta Kumar Nandi
A5050922598- High-Energy Particle Collisions Research
- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Nuclear reactor physics and engineering
- Cosmology and Gravitation Theories
- Nuclear physics research studies
- Dark Matter and Cosmic Phenomena
- Stochastic processes and statistical mechanics
- Statistical Methods and Bayesian Inference
- Theoretical and Computational Physics
- Complex Systems and Time Series Analysis
- Statistical Mechanics and Entropy
- Superconducting Materials and Applications
- Pulsars and Gravitational Waves Research
- Earth Systems and Cosmic Evolution
- Radiation Detection and Scintillator Technologies
- Particle Accelerators and Free-Electron Lasers
- Solar and Space Plasma Dynamics
- Radioactive Decay and Measurement Techniques
- Radiation Effects in Electronics
- Neutrino Physics Research
- Computational Physics and Python Applications
- Markov Chains and Monte Carlo Methods
- Astrophysics and Cosmic Phenomena
Indian Institute of Technology Bombay
2016-2025
A. Alikhanyan National Laboratory
2014-2024
Central University of Tamil Nadu
2024
Variable Energy Cyclotron Centre
2003-2016
European Organization for Nuclear Research
2012
Institute of Physics, Bhubaneshwar
1999-2011
Forschungszentrum Jülich
2009-2010
Jagiellonian University
2009
University of California, Riverside
2001-2007
The University of Tokyo
2003-2007
We report on an exclusive and kinematically complete high-statistics measurement of the basic double-pionic fusion reaction pn→dπ(0)π(0) over full energy region ABC effect, a pronounced low-mass enhancement in ππ-invariant mass spectrum. The measurements, which cover also transition to conventional t-channel ΔΔ process, were performed with upgraded WASA detector setup at COSY. data reveal Abashian-Booth-Crowe effect be uniquely correlated Lorentzian dependence integral cross section....
Exclusive measurements of the quasifree $pn\ensuremath{\rightarrow}pp{\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{\ensuremath{-}}$ reaction have been performed by means $pd$ collisions at ${T}_{p}$ $=$ 1.2 GeV using wide angle shower apparatus (WASA) detector setup cooler synchrotron COSY (Institut f\"ur Kernphysik, J\"ulich). Total and differential cross sections obtained covering energy region $\sqrt{s}$ (2.35--2.46) GeV, which includes ABC effect its associated resonance structure. No...
Measurement of higher-order cumulants conserved quantities, like net-charge, net-baryon, and net-strangeness in heavy-ion collisions, is proposed as a sensitive tool to determine the freeze-out parameters nature phase transitions at CERN Large Hadron Collider (LHC) energies. Baseline measurements for collisions are essential understand experimental observations. Recently, several observations have shown QGP-like scenarios small systems (𝑝𝑝 collisions). The first Monte-Carlo study their...
An exclusive measurement of the excitation function for dd->3Heppi- reaction was performed at Cooler Synchrotron COSY-Juelich with WASA-at-COSY detection system. The data were taken during a slow acceleration beam from 2.185 GeV/c to 2.400 crossing kinematic threshold eta meson production in dd->4He-eta 2.336 GeV/c. corresponding excess energy respect 4He-eta system varied -51.4MeV 22MeV. integrated luminosity experiment determined using dd->3Hen reaction. shape examined. No signal bound...
We report the excitation energy dependence of specific heat (\cv) hadronic matter at freeze-out in Au+Au and Cu+Cu collisions Relativistic Heavy Ion Collider energies by analyzing published data on event-by-event mean transverse momentum (\meanpt) distributions. The \meanpt~distributions finite \pt~ranges are converted to distributions effective temperatures, dynamical fluctuations temperature extracted subtracting widths corresponding mixed event capacity per particle kinetic surface is...
Exclusive and kinematically complete high-statistics measurements of the double pionic fusion reaction $dd \to ^4$He$\pi^0\pi^0$ have been performed in energy range 0.8 - 1.4 GeV covering thus region ABC effect, which denotes a pronounced low-mass enhancement $\pi\pi$-invariant mass spectrum. The experiments were carried out with WASA detector setup at COSY. Similar to observation basic $pn d \pi^0\pi^0$ reaction, data reveal correlation between effect resonance-like dependence total cross...
The heavy quark drag and momentum diffusion coefficients in the presence of both collisional radiative processes have been studied a hot viscous QCD medium. thermal medium effects are incorporated by employing effective fugacity quasiparticle model based on lattice equation state. Viscous embedded into transport through near-equilibrium distribution functions constituent particles quark-gluon plasma. corrections to distributions estimated from Boltzmann equation. effect shear correction is...
The variation of average transverse mass identified hadrons with charge multiplicity has been studied for AGS, SPS, and RHIC energies. observation a plateau in the multiplicities corresponding to SPS energies is attributed formation coexistence phase quark gluon plasma hadrons. A subsequent rise may indicate deconfined initial state. Several possibilities which can affect are discussed. Constraints on temperature thermalization time have put from various experimental data available at
The reaction pp->pppi0pi0 has been investigated at a beam energy of 1.4 GeV using the WASA-at-COSY facility. total cross section is found to be (324 +- 21_systematic 58_normalization) mub. In order study production mechanism, differential kinematical distributions have evaluated. indicate that both initial state protons are excited into intermediate Delta(1232) resonances, each decaying proton and single pion, thereby producing pion pair in final state. No significant contribution Roper...
We review the charged particle and photon multiplicity, transverse energy production in heavy-ion collisions starting from few GeV to TeV energies. The experimental results of pseudorapidity distribution particles photons at different collision energies centralities are discussed. also discuss hypothesis limiting fragmentation expansion dynamics using Landau hydrodynamics underlying physics. Meanwhile, we present estimation initial density multiplied with formation time as a function...
We introduce the use of Weibull distribution as a simple parametrization charged particle multiplicities in hadron-hadron collisions at all available energies, ranging from ISR energies to most recent LHC energies. In statistics, has wide applicability natural processes that involve fragmentation processes. This provides connection state-of-the-art models for multiparticle production collisions, which QCD parton and hadronization. The describes multiplicity data better than single negative...
The two-parameter Weibull function is used to describe the charged particle multiplicity distribution in ${e}^{+}{e}^{\ensuremath{-}}$ collisions at highest available energy measured by TASSO and ALEPH experiments. has wide applications naturally evolving processes based on fragmentation sequential branching. model describes very well, as production involve QCD parton fragmentation. effective of was verified using parameters same predict future collider energies.
The multiplicity dependence of the production charm mesons in pp collisions at [Formula: see text][Formula: text]TeV and 13[Formula: as measured by ALICE experiment has been investigated using Pythia 8 event generator studying effect various processes partonic level such different modes color reconnections rope hadronization. relative yields ([Formula: text]) D-mesons text] a function charged particle for transverse momentum ranges are reasonable agreement with estimations model within...
Anomalous event-by-event fluctuations of the relative yields neutral (${K}_{s}^{0}$) and charged kaon (${K}^{\ifmmode\pm\else\textpm\fi{}}$) have been predicted to yield a signature for formation disoriented chiral condensate (DCC) in relativistic heavy-ion collisions. In this work, we model production decay DCCs context collisions at CERN Large Hadron Collider, estimate sensitivity large acceptance detectors, such as ALICE detector, towards identification anomalous decays. Our study is...
Abstract The bottom quark transport coefficients, i.e., drag and diffusion have been studied for the collisional soft gluon radiative processes within viscous QCD medium. thermal medium effects are incorporated using effective fugacity quasiparticle model (EQPM). Both shear bulk at leading order embedded through near-equilibrium distribution functions of quark–gluon plasma (QGP) constituent quasiparticles. coefficients’ dependence on quark’s initial momentum QGP temperature investigated....
We estimate the transport coefficients like shear and bulk viscosities of hot hadronic matter in van der Walls hadron resonance gas ( VDW HRG ) model relaxation time approximation. also have compared these results with excluded volume EV calculations. $η/s$ decreases as temperature system increases at a fixed baryon chemical potential. is always less than that case due to large entropy density case. At potential, $ζ/s$ estimated along freezeout curve. There an increase determined from...
Abstract Resonance production in proton–proton collisions at $$\sqrt{s} = 7$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>7</mml:mn></mml:mrow></mml:math> TeV and 13 have been investigated using a Pythia 8 event generator within the framework of microscopic processes including color reconnection rope hadronization. Specifically, observable effects different modes reconnections on ratio yields mesonic...
In the framework of a nuclear overlap model, we estimate number nucleons and quark participants in proton-proton, proton-nucleus, nucleus-nucleus collisions. We observe nucleon- (<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M1"><mml:mrow><mml:msub><mml:mrow><mml:mi>N</mml:mi></mml:mrow><mml:mrow><mml:mi>N</mml:mi><mml:mtext>-part</mml:mtext></mml:mrow></mml:msub></mml:mrow></mml:math>-) normalized enhancement multistrange particles, which shows monotonic increase with...