Pion condensation in a dense neutrino gas

被引：21

作者：

Abuki, Hiroaki ^{[1
]}

Brauner, Tomas ^{[1
]}

Warringa, Harmen J. ^{[1
]}

机构：

[1] Goethe Univ Frankfurt, Inst Theoret Phys, D-60438 Frankfurt, Germany

来源：

EUROPEAN PHYSICAL JOURNAL C | 2009年 / 64卷 / 01期

关键词：

QCD PHASE-DIAGRAM; MODEL; TEMPERATURE; MATTER;

D O I：

10.1140/epjc/s10052-009-1121-0

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We argue that using an equilibrated gas of neutrinos it is possible to probe the phase diagram of QCD for finite isospin and small baryon chemical potentials. We discuss this region of the phase diagram in detail and demonstrate that for large enough neutrino densities a Bose-Einstein condensate of positively charged pions arises. Moreover, we show that for non-zero neutrino density the degeneracy in the lifetimes and masses of the charged pions is lifted.

引用

页码：123 / 131

页数：9

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