Quark nuggets as baryonic dark matter

被引:26
作者
Alam, JE
Raha, S
Sinha, B
机构
[1] Ctr Variable Energy Cyclotron, Calcutta 700064, W Bengal, India
[2] Bose Inst, Calcutta 700009, W Bengal, India
[3] Saha Inst Nucl Phys, Calcutta 700064, W Bengal, India
关键词
dark matter; early universe; elementary particles;
D O I
10.1086/306905
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The cosmic first-order phase transition from quarks to hadrons, occurring a few microseconds after the big bang, would lead to the formation of quark nuggets which would be stable on a cosmological timescale if the associated baryon number was larger than a critical value. We examine the possibility that these surviving quark nuggets may not only be viable candidates for cold dark matter but could even close the universe.
引用
收藏
页码:572 / 575
页数:4
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