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September 20, 2009 Congratulations to Stephen Baumgart, from the Yale University, on successfully defending his phd thesis on Open Heavy Flavor Production in sqrt(s)= 200 GeV collisions. August 27, 2009 Congratulations to Kohei Kajimoto, from the Physics Department, The University of Texas at Austin, on successfully defending his phd thesis title "A Large Area Time of Flight Detector for the STAR Experiment at RHIC". August 27, 2009 Congratulations to Sunil Manohar Dogra, from University of Jammu, on successfully defending his thesis titled "Particle Production and Correlations in Ultra-relativistic Nucleus-Nucleus Collisions". August 18, 2009 Congratulations to Jianhang Zhou, from Rice University, on successfully defending his thesis titled "Light (Anti-)Nuclei Production in the STAR Experiment at RHIC". July 20, 2009 Congratulations to Christine Nattrass from the Yale University for successfully defending her Ph.D. dissertation on "System, energy, and flavor dependence of jets through di-hadron correlations in heavy ion collisions" on Monday, July 20, 2009.
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The STAR experiment has now reported two interesting
results on long range correlations
in rapidity. One of the experimental observation
is from a correlation study in azimthal angle and
pseudorapidity for produced charged hadrons with
respect to a particle with larger transverse momentum. Such
studies revealed a jet-like
correlation at small pair phase space separation
(in azimuth and pseudorapidity - near side) which
seems to be unmodified in central Au+Au
collisions relative to d+Au and a significant
correlated yield in central Au+Au collisions at
large pair separation in pseudorapidity (the
RIDGE). The ridge is observed in Au+Au collisions
and not observed in d+Au collisions (See figures).
