SURVIVABILITY OF COSMOLOGICAL QUARK NUGGETS IN THE CHROMOELECTRIC FLUX-TUBE FISSION MODEL OF BARYON EVAPORATION

被引：37
作者：
BHATTACHARJEE, P
ALAM, JE
SINHA, B
RAHA, S
机构：
[1] VARIABLE ENERGY CYCLOTRON CTR,1-AF BIDHAN NAGAR,CALCUTTA 700064,INDIA
[2] SAHA INST NUCL PHYS,CALCUTTA 700064,INDIA
[3] BOSE INST,CALCUTTA 700009,W BENGAL,INDIA
来源：
PHYSICAL REVIEW D | 1993年 / 48卷 / 10期
关键词：
D O I：
10.1103/PhysRevD.48.4630
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The question of the survivability of quark nuggets against the process of baryon evaporation from their surfaces is studied within the context of a dynamical model, namely, the chromoelectric flux-tube fission model of baryon formation and evaporation. Depending on the temperature at which nuggests are formed in the early Universe and the value of the bag constant B, our conservative estimates (we overestimate the baryon evaporation rate) show that quark nuggets with an initial baryon number approximately 10(44) or more can survive the evaporation process and be present in the Universe today.
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页码：4630 / 4638
页数：9
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