Large nucleation distances from impurities in the cosmological quark-hadron transition

被引：52

作者：

Christiansen, MB

Madsen, J

机构：

[1] Institute of Physics and Astronomy, University of Aarhus, Århus C

来源：

PHYSICAL REVIEW D | 1996年 / 53卷 / 10期

关键词：

D O I：

10.1103/PhysRevD.53.5446

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We calculate the mean nucleation distance d(nuc) in a first order cosmological quark-hadron phase transition. For homogeneous nucleation we find that self-consistent inclusion of curvature energy reduces d(nuc) to less than or similar to 2 cm. However, impurities can lead to heterogeneous nucleation with d(nuc) of several meters, a value high enough to change the outcome of big bang nucleosynthesis.

引用

页码：5446 / 5454

页数：9

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