RELAXING THE BIG-BANG BOUND TO THE BARYON DENSITY

被引：15

作者：

GYUK, G

TURNER, MS

机构：

[1] FERMILAB NATL ACCELERATOR LAB,NASA,FERMILAB ASTROPHYS CTR,BATAVIA,IL 60510

[2] UNIV CHICAGO,ENRICO FERMI INST,DEPT ASTRON & ASTROPHYS,CHICAGO,IL 60637

来源：

PHYSICAL REVIEW D | 1994年 / 50卷 / 10期

关键词：

D O I：

10.1103/PhysRevD.50.6130

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In the standard picture of big-bang nucleosynthesis the yields of D, He3, He4, and Li7 only agree with their inferred primordial abundances provided the fraction of critical density contributed by baryons is between 1% and 15%. If the neutrino has a mass between 20 MeV and 30 MeV and a lifetime between 200 sec and 3000 sec and its decay products include electron neutrinos this crucial bound is relaxed by a factor of 10. Experiments at e colliders should soon test this possibility. © 1994 The American Physical Society.

引用

页码：6130 / 6134

页数：5

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