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arXiv 0705.3152hep-ph
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电荷、奇异性和奇异半径

Charge, strangeness and radius of strangelets

X. J. Wen, G. X. Peng, Y. D. Chen

摘要:

我们研究了零温和有限温下奇异度随电荷Z和奇异度S的变化。奇异子半径不是电荷或奇异度的单调函数,在(Z,S)平面上有一个极小值。然而,量子稳定的奇异轨道并不对应于半径极小值。最小半径总是出现在正奇异数处,而稳定半径可能出现在非常小的重子数的负奇异数处。对于大的重子数,稳定半径与重子数的立方根成正比,而与禁闭参数的平方根成反比。如果体奇异夸克物质是绝对稳定的,奇异夸克的约化尺寸约为1 fm,这可能与奇异夸克的产生和检测的分析有关。

英文摘要:

We investigate, at both zero and finite temperature, the properties of strangelets versus the electric charge Z and strangeness S. The strangelet radius is not a monotonic function of either charge or strangeness, and a minimum is reached in the (Z, S) plane. However, the thermodynamically stable strangelets do not correspond to the radius minimum. The minimum radius always appears at positive strangeness, while the stable radius may appear at negative strangeness for very small baryon numbers. For large baryon numbers, the stable radius is proportional to the cubic root of baryon numbers, but inversely proportional to the square root of the confinement parameter in the present model. If bulk strange quark matter is absolutely stable, the reduced size of strangelets is about 1 fm, which may be relevant for the analysis of the strangelet production and detection.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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