Charmonium suppression by gluon bremsstrahlung in p-A and A-B collisions

• Verfasst von: Hüfner, Jörg [VerfasserIn]
• Verfasst von: He, Yong-Bin [VerfasserIn]
• Verfasst von: Kopeliovich, Boris Z. [VerfasserIn]
• Titel: Charmonium suppression by gluon bremsstrahlung in p-A and A-B collisions
• Verf.angabe: J. Hüfner, Y.B. He, B.Z. Kopeliovich
• Umfang: 6 S.
• Fussnoten: Gesehen am 06.03.2018
• Titel Quelle: Enthalten in: The European physical journal / A
• Jahr Quelle: 2000
• Band/Heft Quelle: 7(2000), 2, S. 239-244
• ISSN Quelle: 1434-601X
• DOI: doi:10.1007/s100500050387
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1570435545

Abstract

Prompt gluons are an additional source for charmonium suppression in nuclear collisions, in particular for nucleus-nucleus collisions. These gluons are radiated as bremsstrahlung in N-N collisions and interact inelastically with the charmonium states while the nuclei still overlap. The spectra and mean number <ng> of the prompt gluons are calculated perturbatively and the inelastic cross section σabsΨg is estimated. The integrated cross sections σ(A B →J/ψX) for p-A and A-B collisions and the dependence on transverse energy for S-U and Pb-Pb can be described quantitatively with some adjustment of one parameter <ng>σabsΨg.