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Physics of Large-x Nuclear Suppression
- 1.0338855 - ÚJF 2010 RIV NL eng J - Journal Article
Nemchik, J. - Šumbera, Michal
Physics of Large-x Nuclear Suppression.
Nuclear Physics. A. Roč. 830, - (2009), 611C-614C. ISSN 0375-9474. E-ISSN 1873-1554.
[21st International Conference on Ultrarelativistic Nucleus-Nucleus Collisions (Quark Matter 2009). Knoxville, 30.03.2009-04.04.2009]
R&D Projects: GA ČR GA202/07/0079; GA MŠMT LC07048
Institutional research plan: CEZ:AV0Z10480505
Keywords : nuclear target * high-pT process * large-x effects
Subject RIV: BG - Nuclear, Atomic and Molecular Physics, Colliders
Impact factor: 1.706, year: 2009
We discuss a common feature of all known reactions on nuclear targets - a significant suppression at large x. Simple interpretation of this effect is based on energy conservation restrictions in initial state parton rescatterings. Using the light-cone dipole approach this mechanism is shown to control variety of processes on nuclear targets: high-pT particle production at different rapidities as well as direct and virtual (Drell-Yan) photon production. We demonstrate universality and wide applicability of this mechanism allowing to describe large-x effects also at SPS and FNAL energies too low for the onset of coherent effects or shadowing.
Permanent Link: http://hdl.handle.net/11104/0182517
Number of the records: 1