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star focus: Long range rapidity correlations
Highlights from the STAR papers: Long range rapidity correlations and jet production in high energy nuclear collisions and Growth of Long Range Forward-Backward Multiplicity Correlations with Centrality in Au+Au Collisions at sqrt(sNN) = 200 GeV . Submitted for publication to Physical Review C and Physical Review Letters respectively.
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).

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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.

July 14, 2009

Congratulations to Zbigniew Chajecki from the Ohio State University for successfully defending his Ph.D. dissertation on Monday, July 13th, 2009. The title of his thesis is: "Global Conservation Laws and Femtoscopy at RHIC".

July 10, 2009

Congratulations to Paul Sorensen, from BNL, who is among the winners of this year's Presidential Early Career Award for Scientists and Engineers. This award was announced in a White House press release, is given to a select few candidates nominated by the U.S. government's science and technology agencies, including DOE.

June 5, 2009

Congratulations to Oleksandr Grebenyuk of Lawrence Berkeley National Laboratory for winning the poster award at the 2009 RHIC & AGS Annual Users' Meeting. Title of the poster is "Local Polarimetry with Zero Degree Calorimeter at STAR".


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