Journalartikel
Autorenliste: Greiner, C; Leupold, S
Jahr der Veröffentlichung: 2001
Seiten: L95-L101
Zeitschrift: Journal of Physics G: Nuclear and Particle Physics
Bandnummer: 27
Heftnummer: 9
ISSN: 0954-3899
eISSN: 1361-6471
Open Access Status: Green
DOI Link: https://doi.org/10.1088/0954-3899/27/9/102
Verlag: IOP Publishing
Abstract:
Recently, it has been shown that the observed antiproton yield in heavy-ion collisions at CERN-SpS energies can be understood by multi-pionic interactions such as pi pi pi pi pi <----> p (p) over bar, which enforce local chemical equilibrium of the antiprotons with the nucleons and pions. Here we show that antihyperons are driven towards local chemical equilibrium with pions, nucleons and kaons on a timescale of 1-3 fm c(-1) when applying a similar argument for the antihyperons by considering the inverse channel of annihilation reactions such as (Y) over bar + p <----> n(1)pi + n(2)K. These multi-mesonic reactions easily explain the antihyperon yields at CERN-SpS energies as advertised in pure thermal, hadronic models without the need of a quark-gluon plasma phase. In addition, the argument also applies for AGS energies.
Zitierstile
Harvard-Zitierstil: Greiner, C. and Leupold, S. (2001) Antihyperon production in relativistic heavy-ion collisions, Journal of Physics G: Nuclear and Particle Physics, 27(9), pp. L95-L101. https://doi.org/10.1088/0954-3899/27/9/102
APA-Zitierstil: Greiner, C., & Leupold, S. (2001). Antihyperon production in relativistic heavy-ion collisions. Journal of Physics G: Nuclear and Particle Physics. 27(9), L95-L101. https://doi.org/10.1088/0954-3899/27/9/102
Schlagwörter
ANTIPROTON PRODUCTION; HADRON PHASE-TRANSITION; NUCLEUS-NUCLEUS COLLISIONS; PARTON; PB-PB COLLISIONS; STRANGENESS ENHANCEMENT; XI
