Chinese Physics C > 2006, Vol. 30 > Issue(S2): 249-251

Condensations of K^－and K⁰in Neutron Star Matter

DING Wen-Bo^,,
LIU Guang-Zhou

Center for Theoretical Physics, Jilin University, Changchun 130023, China

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Abstract：
In the framework of the relativistic mean field theory(RMFT),the condensations of K ^－and K ⁰in neutron star matter are studied. We find that K ^－and K ⁰condensations can both occur,even in the case that the neutron star matter includes baryon octet and Δ resonances.Also we investigate how hyperons and K condensations influence each other. K ⁰condensations depress K ^－condensations and make Δ resonances appear easily. In the high density region, the system may consist of many kinds of baryons, whose number densities are becomming identical. And ultimately K ⁰-rich matter is formed in the core. The equation of state including K condensations becomes softer resulting in a smaller maximum mass of neutron star.

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DING Wen-Bo and LIU Guang-Zhou. Condensations of K ^－and K ⁰in Neutron Star Matter[J]. Chinese Physics C, 2006, 30(S2): 249-251.

DING Wen-Bo and LIU Guang-Zhou. Condensations of K ^－and K ⁰in Neutron Star Matter[J]. Chinese Physics C, 2006, 30(S2): 249-251. shu

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Received: 2006-10-18
Revised: 1900-01-01

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通讯作者:陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Condensations of K^－and K⁰in Neutron Star Matter

Corresponding author:DING Wen-Bo,

Center for Theoretical Physics, Jilin University, Changchun 130023, China

Received Date:2006-10-18

Accepted Date:1900-01-01

Available Online:2006-01-03

Abstract:In the framework of the relativistic mean field theory(RMFT),the condensations of K^－and K⁰in neutron star matter are studied. We find that K^－and K⁰condensations can both occur,even in the case that the neutron star matter includes baryon octet and Δ resonances.Also we investigate how hyperons and K condensations influence each other. K⁰condensations depress K^－condensations and make Δ resonances appear easily. In the high density region, the system may consist of many kinds of baryons, whose number densities are becomming identical. And ultimately K⁰-rich matter is formed in the core. The equation of state including K condensations becomes softer resulting in a smaller maximum mass of neutron star.

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Condensations of K^－and K⁰in Neutron Star Matter

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