Meson mT-scaling in heavy-ion collisions at SIS energies

被引：36

作者：

Bratkovskaya, EL ^{[1
]}

Cassing, W ^{[1
]}

Mosel, U ^{[1
]}

机构：

[1] Univ Giessen, Inst Theoret Phys, D-35392 Giessen, Germany

来源：

PHYSICS LETTERS B | 1998年 / 424卷 / 3-4期

关键词：

relativistic heacy-ion collisions; vector mesons; strange mesons;

D O I：

10.1016/S0370-2693(98)00213-5

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We perform systematical studies on transverse-mass spectra of pi(0), eta, omega, phi, K+ and K- mesons for C + C, Ni + Ni, Au + Au collisions at SIS energies within the HSD transport approach. We find that the m(T)-spectra sensitively reflect the in-medium properties of the mesons. The 'bare mass' scenario leads to a general scaling behaviour for the meson m(T)-spectra when including a mass shift due to the associate strangeness production threshold for kaons and antikaons whereas a 'dropping' mass scheme violates this m(T)-scaling. The relative slope parameters, however, provide valuable information about the average meson potentials in the nuclear medium. (C) 1998 Published by Elsevier Science B.V.

引用

页码：244 / 252

页数：9

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