12-18 August 2012
US/Eastern timezone

If you have any questions about the details of the program please contact Bolek Wyslouch

Unraveling Cold Nuclear Matter Effects with the sPHENIX Forward Upgrade

16 Aug 2012, 16:00
Regency 1/3 and Ambassador

Regency 1/3 and Ambassador

Poster Experiment upgrades, new facilities, and instrumentation Poster Session Reception


Prof. Seto Richard (University of California, Riverside)


Studies of proton (deuteron) - nucleus collisions allow for the detailed examination of cold nuclear matter effects (including gluon saturation, initial state parton energy loss, nuclear break up and others), while also providing a crucial baseline for nucleus-nucleus collisions with additional hot quark-gluon plasma effects. The PHENIX experiment is planning an ambitious upgrade program referred to as sPHENIX that includes a mid-rapidity solenoid with full calorimetry coverage. In addition, the sPHENIX planning includes extended forward rapidity coverage. In this presentation, we detail two example physics observables at forward rapidity that are key to unraveling these cold nuclear matter effects. The first is the extension of heavy quarkonia measurements to more forward rapidities where the effects of gluon saturation and initial state parton energy loss are predicted to be enhanced. The second is the determination of transverse momentum dependent (TMD) gluon parton distributions in nuclei. Recent theoretical progress indicates that while TMD factorization is broken, it is recovered at low-x and makes a direct connection to Color Glass Condensate calculations. These distributions will be measured using direct photon-jet and jet-jet correlations - a primary design requirement for the sPHENIX forward update plan.

Primary author

Prof. Seto Richard (University of California, Riverside)

Presentation Materials