Prompt contributions to the dilepton yield in heavy ion collisions

• Verfasst von: Hüfner, Jörg [VerfasserIn]
• Verfasst von: Ivanov, Yuri P. [VerfasserIn]
• Verfasst von: Raufeisen, Jörg [VerfasserIn]
• Titel: Prompt contributions to the dilepton yield in heavy ion collisions
• Verf.angabe: J. Hüfner, Yu P. Ivanov, B.Z. Kopeliovich and J. Raufeisen
• Fussnoten: Gesehen am 06.03.2018
• Titel Quelle: Enthalten in: De.arxiv.org
• Jahr Quelle: 2000
• Band/Heft Quelle: (2000) Artikel-Nummer 9911064, 10 Seiten
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1570437807

Abstract

The mass spectrum is calculated for those dileptons which are produced in the early phase of a heavy ion collisions via the direct production NN -> (l^+)(l^-)X and via the Compton process GN -> (l^+)(l^-)X with prompt gluons radiated in preceding NN interactions. Both mechanisms produce a mass spectrum which decreases steeply with invariant mass of the l^+l^- pair and which is below the CERES data for Pb-Au collisions by about one order of magnitude.