190 citations · 1k across the 95 of their papers we have counts for
70 papers · 1 filter
Fluctuations in slope parameter in event-by-event hydrodynamics and momentum anisotropy in heavy ion collisions
A. K. Chaudhuri
In event by event hydrodynamic model, we have simulated 30-40\% Au+Au collisions at RHIC and computed the slope parameter from the invariant pion distribution. In each event, the s…
Effect of high frequency modes of medium on an open quantum system
Nirupam Dutta, A. K. Chaudhuri, P. K. Panigrahi
We present a method to calculate the real time effective propagator of a generic open quantum system, immersed in a medium using a wave function based framework. The medium is char…
Direct photon production and interferometry in =200 GeV Au+Au and in =2.76 TeV Pb+Pb collisions
A. K. Chaudhuri
Direct photon production, in =200 GeV Au+Au and in =2.76 TeV Pb+Pb collisions, are studied in a hydrodynamic model. Ideal hydrodynamic model, initiali…
Even-by-event hydrodynamical simulations for =200 GeV Au+Au collisions and the correlation between flow coefficients and initial asymmetry measures
A. K. Chaudhuri, Md. Rihan Haque, Victor Roy +1
Centrality dependence of charged particles multiplicity, transverse momentum spectra, integrated and differential elliptic flow, in =200 GeV Au+Au collisions are ana…
Effect of charged particle's multiplicity fluctuations on flow harmonics in even-by-event hydrodynamics
A. K. Chaudhuri
In nucleon-nucleon collisions, charged particle's multiplicity fluctuates. We have studied the effect of multiplicity fluctuation on flow harmonics in nucleus-nucleus collision in…
Elliptic and Hexadecapole flow of charged hadron in viscous hydrodynamics with Glauber and Color Glass Condensate initial conditions for Pb-Pb collision at =2.76 TeV
Victor Roy, Bedangadas Mohanty, A. K. Chaudhuri
The experimentally measured elliptic () and hexadecapole () flow of charged particles as a function of transverse momentum () at midrapidity in Pb-Pb collision…
A short course on Relativistic Heavy Ion Collisions
A. K. Chaudhuri
Some ideas/concepts in relativistic heavy ion collisions are discussed. To a large extent, the discussions are non-comprehensive and non-rigorous. It is intended for fresh graduate…
suppression and QCD phase diagram
A. K. Chaudhuri, Partha Pratim Bhaduri
QCD phase diagram is obtained by analysing centrality dependence of suppression in $\snn$=17.3 Pb+Pb and $\snn$=200 GeV Au+Au collisions. 's produced in initial interact…
Comparison of results from a 2+1D relativistic viscous hydrodynamic model to elliptic and hexadecapole flow of charged hadrons measured in Au-Au collisions at = 200 GeV
Victor Roy, A. K. Chaudhuri, Bedangadas Mohanty
Simulated results from a 2+1D relativistic viscous hydrodynamic model have been compared to the experimental data on the centrality dependence of invariant yield, elliptic flow ($v…
Bulk viscosity in heavy ion collision
Victor Roy, A. K. Chaudhuri
The effect of a temperature dependent bulk viscosity to entropy density ratio~() along with a constant shear viscosity to entropy density ratio~() on the space time evolu…
Dilepton to photon ratio, a viscometer of QGP
A. K. Chaudhuri, Bikash Sinha
In the Israel-Stewart's 2nd order hydrodynamics, a viscous effect on dilepton emission from a QGP medium is investigated. Dileptons are strongly affected by QGP viscosity. Large in…
Influence of shear viscosity on the correlation between the triangular flow and initial spatial triangularity
A. K. Chaudhuri
In a hydrodynamic model, with fluctuating initial conditions, the correlation between triangular flow and initial spatial triangularity is studied. The triangular flow, even in ide…
Temperature dependence of QGP viscosity over entropy ratio from hydrodynamical analysis of ALICE data in =2.76 TeV Pb+Pb collisions
A. K. Chaudhuri
Within Israel-Stewart's theory of dissipative hydrodynamics, we have analyzed ALICE data for the centrality dependence of charged particles multiplicity, elliptic flow and sp…
Elliptic flow of thermal dileptons as a probe of QCD matter
Payal Mohanty, Victor Roy, Sabyasachi Ghosh +5
We study the variation of elliptic flow of thermal dileptons with transverse momentum and invariant mass of the pairs for Pb+Pb collisions at = 2.76 TeV. The dilept…
2+1 dimensional hydrodynamics including bulk viscosity: a systematics study
Victor Roy, A. K. Chaudhuri
We have studied the effect of nonzero bulk viscosity with peak near the lattice QCD predicted crossover temperature on charged particle transverse momentum spe…
Fluctuating initial conditions and fluctuations in elliptic and triangular flow
A. K. Chaudhuri
In heavy ion collisions, event-by-event fluctuations in participating nucleon positions can lead to triangular flow. With fluctuating initial conditions, flow coefficients will als…
Modified Knudsen ansatz and elliptic flow in =14 TeV pp collisions
A. K. Chaudhuri
Assuming that hot spots are formed in initial pp collisions, in a modified Knudsen ansatz, which accounts for the entropy generation in viscous fluid evolution, we have given predi…
Charged particle's elliptic flow in 2+1D viscous hydrodynamics at LHC (= 2.76 TeV) energy in Pb+Pb collision
Victor Roy, A. K. Chaudhuri
In the Israel-Stewart's theory of second order hydrodynamics, we have simulated =2.76 TeV Pb+Pb collisions. ALICE data for the centrality dependence of charged particles…
Hydrodynamical analysis of centrality dependence of charged particle's multiplicity in =2.76 TeV Pb+Pb collisions
A. K. Chaudhuri, Victor Roy
In Israel-Stewart's theory of dissipative hydrodynamics, we have analyzed the recent ALICE data for the centrality dependence of charged particle multiplicity, centrality dependenc…
Causal dissipative hydrodynamics for heavy ion collisions
A. K. Chaudhuri
We briefly discuss the recent developments in causal dissipative hydrodynamic for relativistic heavy ion collisions. Phenomenological estimate of QGP viscosity over entropy ratio f…
Direct photon production from viscous QGP
A. K. Chaudhuri, Bikash Sinha
We simulate direct photon production in evolution of viscous QGP medium. Photons from Compton and annihilation processes are considered. Viscous effect on photon production is very…
Charged particle's spectra and elliptic flow in =200 GeV Au+Au collisions: QGP vs. hadronic resonance gas
A. K. Chaudhuri, Victor Roy
We show that if the hadronic resonance gas (HRG), with viscosity to entropy ratio 0.24, is physical at temperature 220 MeV, charged particles spectra an…
Hadronic resonance gas and charged particle's spectra and elliptic flow in =200 GeV Au+Au collisions
Victor Roy, A. K. Chaudhuri
Charged particles spectra and elliptic flow in 0-60% Au+Au collisions at RHIC are analyzed in a hydrodynamic model with hot, hadronic resonance gas in the initial state. Phys…
Knudsen number, ideal hydrodynamic limit for elliptic flow and QGP viscosity in =62 and 200 GeV Cu+Cu/Au+Au collisions
A. K. Chaudhuri
Taking into account of entropy generation during evolution of a viscous fluid, we have estimated inverse Knudsen number, ideal hydrodynamic limit for elliptic flow and QGP viscosit…