Nuclear Physics Seminar

"Experimental Study of Quarkonium Production Mechanisms at RHIC"

Presented by Cesar Luiz da Silva, Iowa State University

Tuesday, July 14, 2009, 11:00 am — Small Seminar Room, Bldg. 510

Quarkonia hadroproduction is an excellent tool to investigate gluon
distributions and QCD in the regime of Q^2>> Lambda_{QCD}.
However, the understanding of quarkonia
production from first-principal QCD is still under development. The
formation of colorless final states require the inclusion of one or
more soft gluons in the process which is inherently non-perturbative.

RHIC can play some role in the understanding of quarkonia production
in many observables. Examples include the measurement of relative
yields in different quarkonium states, J/psi polarization in a vast
momentum range from different rapidity ranges, hadronic activity
around J/psi, associated production channels, nuclear modification
factors and polarization in d+Au collisions. Many of these
observables were not explored yet.

In this seminar, the current quarkonia experimental results from
PHENIX will be studied in the view of the state of the art models
and observations from other facilities. Future measurements will be
proposed and the contribution from detector upgrades in RHIC will
also be discussed.

Hosted by: Jeffery Mitchell

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