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arXiv 0802.0276hep-phastro-phhep-lathep-thnucl-th
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有限密度手征对称但受限强子

Chirally symmetric but confined hadrons at finite density

L. Ya. Glozman, R. F. Wagenbrunn

摘要:

在临界的有限化学势和低温下,QCD经历手征恢复相变。民间传统认为强子被解除束缚的同时夸克物质也出现了。我们证明了在有限的化学势下有可能存在受限但手征对称的强子,因此在有限的化学势和低温下,超过手征恢复点,可能存在由手征对称但受限的强子组成的手征对称物质。如果它确实发生在QCD中,那么QCD相图应该重新考虑,这对重离子计划和天体物理学有明显的影响。

英文摘要:

At a critical finite chemical potential and low temperature QCD undergoes the chiral restoration phase transition. The folklore tradition is that simultaneously hadrons are deconfined and there appears the quark matter. We demonstrate that it is possible to have confined but chirally symmetric hadrons at a finite chemical potential and hence beyond the chiral restoration point at a finite chemical potential and low temperature there could exist a chirally symmetric matter consisting of chirally symmetric but confined hadrons. If it does happen in QCD, then the QCD phase diagram should be reconsidered with obvious implications for heavy ion programs and astrophysics.

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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