Charge Dependence of the Critical Density of Strange Quark Matter in a New Mass Scaling

PENG GuangXiong; JIANG HuanQing; LIU ZhiJun; ZHOU LeMing; LIU Bo; CHENG XingGuo; LI JingHua

Chinese Physics C> 2000, Vol. 24> Issue(8) : 732-738

Charge Dependence of the Critical Density of Strange Quark Matter in a New Mass Scaling

Institute of High Energy Physics, The Chinese Academy of Sciences, Beijing 100039, China2 Department of Physics, Nankai University, Tianjin 300071, China3 Department of Electronic Engineering, Shiyan College of Career and Technology, Shiyan 442000, China4 Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China

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One of our recent works demonstrates that the previous quark mass scaling should be modified, which has significantly changed the density behavior of the sound velocity in strange quark matter. In the present study, we provide a selfconsistent thermodynamic treatment to determine the parmeter in the mass formula, and prove that, under the new quark mass scaling, proper negative charges can still lower the critical density, and thus be favorable to the searches for strangelets in heavy ion experiments. Naturally, too much negative charges can still make it impossible to maintain flavor equilibrium.

References

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PENG GuangXiong, JIANG HuanQing, LIU ZhiJun, ZHOU LeMing, LIU Bo, CHENG XingGuo and LI JingHua. Charge Dependence of the Critical Density of Strange Quark Matter in a New Mass Scaling[J]. Chinese Physics C, 2000, 24(8): 732-738.

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Received: 2000-01-14
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

Charge Dependence of the Critical Density of Strange Quark Matter in a New Mass Scaling

Corresponding author: PENG GuangXiong,

Institute of High Energy Physics, The Chinese Academy of Sciences, Beijing 100039, China2 Department of Physics, Nankai University, Tianjin 300071, China3 Department of Electronic Engineering, Shiyan College of Career and Technology, Shiyan 442000, China4 Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China

Received Date: 2000-01-14

Accepted Date: 1900-01-01

Available Online: 2000-08-05

Abstract: One of our recent works demonstrates that the previous quark mass scaling should be modified, which has significantly changed the density behavior of the sound velocity in strange quark matter. In the present study, we provide a selfconsistent thermodynamic treatment to determine the parmeter in the mass formula, and prove that, under the new quark mass scaling, proper negative charges can still lower the critical density, and thus be favorable to the searches for strangelets in heavy ion experiments. Naturally, too much negative charges can still make it impossible to maintain flavor equilibrium.

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Charge Dependence of the Critical Density of Strange Quark Matter in a New Mass Scaling

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