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We are actively participating in the STAR experiment at Brookhaven National Laboratory, NY, USA. The STAR Experiment comprises 65 institutions spanning 14 countries, boasting a collaborative team of 667 members. This diverse workforce includes students, university faculty and staff, national laboratory personnel, and engineers.
The Physics of the Star Experiment:
The primary physics task of STAR is to study the formation and characteristics of the quark-gluon plasma (QGP), a state of matter believed to exist at sufficiently high energy densities. Detecting and understanding the QGP allows us to understand better the universe in the moments after the Big Bang, where the symmetries (and lack of symmetries) of our surroundings were put into motion.
Unlike other physics experiments where a theoretical idea can be tested directly by a single measurement, STAR must make use of a variety of simultaneous studies in order to draw strong conclusions about the QGP. This is due both to the complexity of the system formed in the high-energy nuclear collision and the unexplored landscape of the physics we study. STAR therefore consists of several types of detectors, each specializing in detecting certain types of particles or characterizing their motion. These detectors work together in an advanced data acquisition and subsequent physics analysis that allows final statements to be made about the collision.
Source: https://www.star.bnl.gov/central/physics/
Our contributions (selected) to the STAR experiment in terms of physics :
First measurement of charm-strange meson production at midrapidity in Au+Au collisions at √sNN = 200 GeV
Probing charm hadronization in QGP.
First observation of the directed flow of D0 and D0-bar in Au+Au collisions at √ sNN = 200 GeV.
Can be used to measure the initial Electromagnetic filed produced in non-central Au+Au collisions
Correlation Measurements Between Flow Harmonics in Au+Au Collisions at RHIC.
Can be used to extract the viscosity of QGP
Observation of break-down of hydrodynamic inspire mass ordering in angular anisotropy at low transverse momentum.
First experimental evidence of late stage hadronic interaction on angular anisotropy of proton
Observation of change in particle production mechanism at low beam energy.
This results will help us to understand the QCD phase-diagram
First observation of an energy-dependent difference in elliptic flow between particles and antiparticles in relativistic heavy ion collisions
This results will help us to understand the QCD phase-diagram
Deviation of phi-meson v2 from NCQ scaling.
Evidence for formation of non-QGP medium
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