Kaon and antikaon optical potentials in isospin asymmetric hyperonic matter

被引：52

作者：

Mishra, A. ^{[1
]}

Kumar, A. ^{[1
]}

Sanyal, S. ^{[1
]}

Schramm, S. ^{[2
]}

机构：

[1] Indian Inst Technol, Dept Phys, New Delhi 110016, India

[2] Goethe Univ Frankfurt, Frankfurt Inst Adv Studies, D-60438 Frankfurt, Germany

来源：

EUROPEAN PHYSICAL JOURNAL A | 2009年 / 41卷 / 02期

关键词：

HEAVY-ION COLLISIONS; EQUATION-OF-STATE; CHIRAL SU(3); NONLINEAR REALIZATIONS; NUCLEON SCATTERING; K+ PRODUCTION; DENSE MATTER; ENERGY; SYMMETRY; CONDENSATION;

D O I：

10.1140/epja/i2009-10777-6

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 medium modifications of the energies of kaons and antikaons in isospin asymmetric hyperonic matter are investigated using a chiral SU(3) model. The isospin-dependent medium effects are important for asymmetric heavy-ion collision experiments, as well as relevant for the neutron star phenomenology as the bulk matter in the interior of the neutron star is highly isospin asymmetric. The effects of hyperons on the medium modifications of the kaons and antikaons in the strange hadronic matter are investigated in the present work and are seen to be appreciable for hadronic matter with large strangeness fractions. The study of the K-mesons in the asymmetric strange hadronic matter can be especially relevant for the compressed strange baryonic matter which can result from asymmetric heavy-ion collision experiments in the future accelerator facility FAIR at GSI.

引用

页码：205 / 213

页数：9

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