CAN DILEPTONS REVEAL THE IN-MEDIUM PROPERTIES OF VECTOR-MESONS

被引：59

作者：

LI, GQ ^{[1
]}

KO, CM ^{[1
]}

机构：

[1] TEXAS A&M UNIV, DEPT PHYS, COLLEGE STN, TX 77843 USA

来源：

NUCLEAR PHYSICS A | 1995年 / 582卷 / 3-4期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0375-9474(94)00500-M

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Dilepton production from both pion-pion and kaon-antikaon annihilation in heavy-ion collisions is studied using the relativistic transport model. The formation of a rho meson from pion-pion annihilation and a phi meson from kaon-antikaon annihilation, their propagation in the medium, and their decay into dileptons are explicitly treated. Including medium modifications of the masses and widths of vector mesons as predicted by the QCD sum-rule calculations, we study their effects on the dilepton invariant-mass spectra from heavy-ion collisions at SIS/GSI energies.

引用

页码：731 / 748

页数：18

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