Quantum chromodynamics phase transition in the early Universe and quark nuggets

Pramana

Abhijit Bhattacharyya⁴  Hiroshi Toki³  Sibaji Raha4¹  Bikash Sinha3⁵  Shibaji Banerjee²  Sanjay K Ghosh⁵ 

[1] Department of Physics, Bose Institute, 93/1, A.P.C. Road, Kolkata 700 009, India$$;Physics Department, St. Xavier’s College, 30, Park Street, Kolkata 700 016, India$$;Research Center for Nuclear Physics, Osaka University, Mihogaoka 10-1, Ibaraki City, Osaka 567-0047, Japan$$;Department of Physics, Scottish Church College, 1 & 3 Urquhart Square, Kolkata 700 006, India$$;Variable Energy Cyclotron Centre, 1/AF, Bidhan Nagar, Kolkata 700 064, India$$

关键词: Quark nuggets;    dark matter;    massive astrophysical compact halo objects.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

A first-order quark hadron phase transition in the early Universe may lead to the formation of quark nuggets. The baryon number distribution of these quark nuggets have been calculated and it has been found that there are sizeable number of quark nuggets in the stable sector. The nuggets can clump and form bigger objects in the mass range of 0.0003$M_{odot}$ to 0.12$M_{odot}$. It has been discussed that these bigger objects can be possible candidates for cold dark matter.

【 授权许可】

Unknown