A5107827652- 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
- Cold Atom Physics and Bose-Einstein Condensates
- Statistical Methods and Bayesian Inference
- Theoretical and Computational Physics
- Pediatric Urology and Nephrology Studies
- Network Security and Intrusion Detection
- Dark Matter and Cosmic Phenomena
- Nuclear physics research studies
- Black Holes and Theoretical Physics
- Neutrino Physics Research
- Appendicitis Diagnosis and Management
- Atomic and Subatomic Physics Research
- Particle Accelerators and Free-Electron Lasers
- Atomic and Molecular Physics
- Pulsars and Gravitational Waves Research
- Mobile Agent-Based Network Management
- Service-Oriented Architecture and Web Services
- Advanced Frequency and Time Standards
- Stochastic processes and statistical mechanics
- Magnetic confinement fusion research
University of Jammu
2014-2024
Indian Institute of Technology Indore
2024
A. Alikhanyan National Laboratory
2016-2021
European Organization for Nuclear Research
2012-2013
University of Chicago
2002-2012
Fermi National Accelerator Laboratory
2008-2012
GSI Helmholtz Centre for Heavy Ion Research
2010
We report a new measurement of ${D}^{0}$-meson production at mid-rapidity $(|y|<1)$ in Au + collisions $\sqrt{{s}_{\mathrm{NN}}}=200\phantom{\rule{0.16em}{0ex}}\mathrm{GeV}$ utilizing the heavy flavor tracker, high resolution silicon detector STAR experiment. Invariant yields ${D}^{0}$ mesons with transverse momentum ${p}_{T}\ensuremath{\lesssim}9\phantom{\rule{0.16em}{0ex}}\mathrm{GeV}/c$ are reported various centrality bins (0--10%, 10--20%, 20--40%, 40--60%, and 60--80%). Blast-wave...
Elliptic flow (v_2) values for identified particles at midrapidity in Au + collisions measured by the STAR experiment Beam Energy Scan Relativistic Heavy Ion Collider sqrt{s_{NN}}= 7.7--62.4 GeV are presented three centrality classes. The dependence and data 14.5 new. Except lowest beam energies we observe a similar relative v_2 baryon-meson splitting all classes which is agreement within 15% with number-of-constituent quark scaling. larger most to antiparticles, already observed minimum...
We present high precision measurements of elliptic flow near midrapidity (|y|<1.0) for multistrange hadrons and ϕ meson as a function centrality transverse momentum in Au+Au collisions at center mass energy √[sNN]=200 GeV. observe that the dependence Ω v2 is similar to π p, respectively, which may indicate heavier strange quark flows strongly lighter up down quarks. This observation constitutes clear piece evidence development partonic collectivity heavy-ion top RHIC energy. Number...
We present results from a harmonic decomposition of two-particle azimuthal correlations measured with the STAR detector in Au+Au collisions for energies ranging $\sqrt{s_{NN}}=7.7$ GeV to 200 GeV. The third $v_3^2\{2\}=\langle \cos3(\phi_1-\phi_2)\rangle$, where $\phi_1-\phi_2$ is angular difference azimuth, studied as function pseudorapidity between particle pairs $\Delta\eta = \eta_1-\eta_2$. Non-zero {\vthree} directly related previously observed large-$\Delta\eta$ narrow-$\Delta\phi$...
Measurements of exclusive $J/\ensuremath{\psi}, \ensuremath{\psi}(2s)$, and electron-positron (${e}^{+}{e}^{\ensuremath{-}}$) pair photoproduction in $\mathrm{Au}+\mathrm{Au}$ ultraperipheral collisions are reported by the STAR experiment at $\sqrt{{s}_{{}_{\mathrm{NN}}}}=200\phantom{\rule{4pt}{0ex}}\mathrm{GeV}$. We report several first measurements BNL Relativistic Heavy Ion Collider, which (i) $J/\ensuremath{\psi}$ with large momentum transfer up to...
The acceptance-corrected dielectron excess mass spectra, where the known hadronic sources have been subtracted from inclusive are reported for first time at mid-rapidity |yee|<1 in minimum-bias Au+Au collisions sNN=19.6 and 200 GeV. spectra consistently described by a model calculation with broadened ρ spectral function Mee<1.1GeV/c2. integrated yield sNN=19.6GeV 0.4<Mee<0.75GeV/c2, normalized to charged particle multiplicity mid-rapidity, has value similar that In+In sNN=17.3GeV. For...
We present measurements of three-particle correlations for various harmonics in Au+Au collisions at energies ranging from $\sqrt{{s}_{\mathrm{NN}}}=7.7$ to 200 GeV using the STAR detector. The quantity $\ensuremath{\langle}cos(m{\ensuremath{\phi}}_{1}+n{\ensuremath{\phi}}_{2}\ensuremath{-}(m+n){\ensuremath{\phi}}_{3})\ensuremath{\rangle}$, with $\ensuremath{\phi}$ being azimuthal angles particles is evaluated as a function $\sqrt{{s}_{\mathrm{NN}}}$, collision centrality, transverse...
We report the first dijet transverse momentum asymmetry measurements from Au+Au and pp collisions at RHIC. The two highest-energy back-to-back jets reconstructed fragments with momenta above 2 GeV/c display a significantly higher imbalance in heavy-ion than reference. When reexamined correlated soft particles included, we observe that these dijets then exhibit unique new feature-momentum balance is restored to observed for jet resolution parameter of R=0.4, while rebalancing not attained...
A search for the quantum chromodynamics (QCD) critical point was performed by STAR experiment at BNL Relativistic Heavy Ion Collider, using dynamical fluctuations of unlike particle pairs. ion collisions were studied over a large range collision energies with homogeneous acceptance and excellent identification, covering significant in QCD phase diagram where may be located. Dynamical $K\ensuremath{\pi}$, $p\ensuremath{\pi}$, $Kp$ as measured central 0--5% Au + from center-of-mass...
ALICE (A Large Ion Collider Experiment) is a detector dedicated to the studies with heavy ion collisions exploring physics of strongly interacting nuclear matter and quark-gluon plasma at CERN LHC (Large Hadron Collider). After second long shutdown LHC, Experiment will be upgraded make high precision measurements rare probes low pT, which cannot selected trigger, therefore require very large sample events recorded on tape. The online computing system completely redesigned address major...
In this erratum we report changes on the $D^0$ $p_T$ spectra and nuclear modification factor ($R_{AA}$) in Au+Au collisions at $\sqrt{s_{_{\mathrm{NN}}}}$ = 200 GeV by fixing errors efficiency selection criteria that affected results. The p+p reference spectrum has changed as well is updated with new fragmentation parameters.
The chiral magnetic effect (CME) is a phenomenon that arises from the QCD anomaly in presence of an external field. experimental search for its evidence has been one key goals physics program Relativistic Heavy-Ion Collider. STAR collaboration previously presented results blind analysis isobar collisions (${^{96}_{44}\text{Ru}}+{^{96}_{44}\text{Ru}}$, ${^{96}_{40}\text{Zr}}+{^{96}_{40}\text{Zr}}$) CME. ratio ($Y$) CME-sensitive observable, charge separation scaled by elliptic anisotropy,...
We report the measurement of leptonic ($e^{+}e^{-}$) decay channel $ϕ$(1020) meson in Au+Au collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV by STAR experiment. The transverse momentum ($p_{\rm T}$) spectrum is measured for 0.1 $\le p_{\rm T} \le 2.5$ GeV/$c$ mid-rapidity ($|y|\le1$). obtain $p_{\rm T}$-integrated mass $M_ϕ=1017.7\pm0.8 (\rm {stat.}) \pm0.9 {sys.})$ MeV/$c^{2}$ and width $Γ_ϕ 8.0\pm 2.5(\rm \pm 2.3(\rm {sys.}) \textrm{MeV/}c^{2}$, which are within 1.5\,$σ$ 1.1\,$σ$ vacuum values,...