MULTI-LAMBDA MATTER IN A CHIRAL HADRONIC MODEL

doi:10.1088/1009-1963/10/9/306

中国物理B ›› 2001, Vol. 10 ›› Issue (9): 805-808.doi: 10.1088/1009-1963/10/9/306

MULTI-LAMBDA MATTER IN A CHIRAL HADRONIC MODEL

胡翔¹, 郭华², 刘玉鑫³, 杨树⁴

(1)Department of Technical Physics and Key Laboratory of Heavy Ion Physics, Chinese Ministry of Education, Peking University, Beijing 100871, China; (2)Department of Technical Physics and Key Laboratory of Heavy Ion Physics, Chinese Ministry of Education, Peking University, Beijing 100871, China; Centre of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China; (3)Department of Technical Physics and Key Laboratory of Heavy Ion Physics, Chinese Ministry of Education, Peking University, Beijing 100871, China; Department of Physics, Peking University, Beijing 100871, China; Centre of Theoretical Nuclear Physics, Natio; (4)Department of Technical Physics and Key Laboratory of Heavy Ion Physics, Chinese Ministry of Education, Peking University, Beijing 100871, China; Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080, China; China Centre of Advanc

收稿日期:2001-01-16 修回日期:2001-02-26 出版日期:2001-09-15 发布日期:2005-06-12
基金资助:
Project supported in part by the State Key Development Program for Basic Research of China (Grant No. G2000077400), and the National Natural Science Foundation of China (Grant No.10075002).

MULTI-LAMBDA MATTER IN A CHIRAL HADRONIC MODEL

Guo Hua (郭华)^ac, Yang Shu (杨树)^ade, Hu Xiang (胡翔)^a, Liu Yu-xin (刘玉鑫)^a-e,

^a Department of Technical Physics and Key Laboratory of Heavy Ion Physics, Chinese Ministry of Education, Peking University, Beijing 100871, China; ^b Department of Physics, Peking University, Beijing 100871, China; ^c Centre of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China; ^d Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080, China^e China Centre of Advanced Science and Technology (CCAST), Beijing 100080, China

Received:2001-01-16 Revised:2001-02-26 Online:2001-09-15 Published:2005-06-12
Supported by:
Project supported in part by the State Key Development Program for Basic Research of China (Grant No. G2000077400), and the National Natural Science Foundation of China (Grant No.10075002).

摘要/Abstract

摘要： Multi-lambda matter is investigated in the framework of a chiral hadronic model. It is shown that multi-lambda matter consisting of {N, $\varLambda$} is a metastable state as the strangeness per baryon and the density of hadronic matter are varied. The effective lambda mass decreases as the baryon density increases, and remains larger than that of the nucleon.

Abstract: Multi-lambda matter is investigated in the framework of a chiral hadronic model. It is shown that multi-lambda matter consisting of {N, $\varLambda$} is a metastable state as the strangeness per baryon and the density of hadronic matter are varied. The effective lambda mass decreases as the baryon density increases, and remains larger than that of the nucleon.

Key words: nuclear matter, a chiral Lagrangian, strange hadronic matter

中图分类号: (Nuclear matter)

21.65.-f

14.20.Jn (Hyperons) 11.30.Rd (Chiral symmetries) 11.10.Ef (Lagrangian and Hamiltonian approach)

郭华, 杨树, 胡翔, 刘玉鑫. MULTI-LAMBDA MATTER IN A CHIRAL HADRONIC MODEL[J]. 中国物理B, 2001, 10(9): 805-808.

Guo Hua (郭华), Yang Shu (杨树), Hu Xiang (胡翔), Liu Yu-xin (刘玉鑫). MULTI-LAMBDA MATTER IN A CHIRAL HADRONIC MODEL[J]. Chinese Physics, 2001, 10(9): 805-808.

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MULTI-LAMBDA MATTER IN A CHIRAL HADRONIC MODEL

MULTI-LAMBDA MATTER IN A CHIRAL HADRONIC MODEL

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