φ meson propagation in a hot hadronic gas -: art. no. 054901

被引：44

作者：

Alvarez-Ruso, L ^{[1
]}

Koch, V ^{[1
]}

机构：

[1] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA

来源：

PHYSICAL REVIEW C | 2002年 / 65卷 / 05期

关键词：

D O I：

10.1103/PhysRevC.65.054901

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：

The hidden local symmetry Lagrangian is used to study the interactions of phi mesons with other pseudoscalar and vector mesons in a hadronic gas at finite temperature. We have found a significantly small phi mean free path (less than 2.4 fm at T>170 MeV) due to large collision rates with rho mesons, kaons, and predominantly K* in spite of their heavy mass. This implies that phi mesons produced after hadronization in relativistic heavy ion collisions will not leave the hadronic system without scattering. The effect of these interactions on the time evolution of the phi density in the expanding hadronic fireball is investigated.

引用

页数：13

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