"Antiflow" of antiprotons in heavy ion collisions

  • In the framework of the relativistic quantum dynamics approach we investigate antiproton observables in Au-Au collisions at 10.7A GeV. The rapidity dependence of the in-plane directed transverse momentum p(y) of p's shows the opposite sigh of the nucleon flow, which has indeed recently been discovered at 10.7A GeV by the E877 group. The "antiflow" of p's is also predicted at 2A GeV and at 160 A GeV and appears at all energies also for pi's and K's. These predicted p anticorrelations are a direct proof of strong p annihilation in massive heavy ion reactions.

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Author:André Jahns, Christian Spieles, Heinz Sorge, Horst StöckerORCiDGND, Walter GreinerGND
Parent Title (German):Physical review letter
Document Type:Article
Year of Completion:2006
Year of first Publication:1994
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2006/02/22
Tag:Kollisionen schwerer Ionen; RQMD
RQMD; heavy ion collisions; relativistic quantum molecular dynamics
First Page:3464
Last Page:3467
Source:Phys.Rev.Lett. Vol. 72,22:p. 3464-3467,1994.
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):License LogoDeutsches Urheberrecht