Title of article :
Results from the STAR Beam Energy Scan Program
Author/Authors :
Lokesh Kumar، نويسنده , , STAR Collaboration، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 2011
Abstract :
The main aim of the beam energy scan (BES) program at the Relativistic Heavy-Ion Collider (RHIC) is to explore the quantum chromodynamics (QCD) phase diagram. The specific physics goal is to search for the phase boundary and the QCD critical point. We present results from Au+Au collisions at various energies collected in the BES program by the Solenoidal Tracker At RHIC (STAR) experiment. First results on transverse momentum (image) spectra, image, and average transverse mass (image) for identified hadrons produced at mid-rapidity for image are presented. Centrality dependence of image and image are also discussed and compared to corresponding data from other energies. In addition, first results on charged hadron directed (image) and elliptic flow (image) for image, 11.5 and 39 GeV are presented. New results on event-by-event fluctuations (particle ratio, net-proton and net-charge higher moments) are presented for image.
Keywords :
dynamic fluctuations , Flow , phase diagram , spectra , QCD , higher moments
Journal title :
Nuclear physics A
Journal title :
Nuclear physics A