NUMBER OF NEUTRINO SPECIES AND THE LEPTON NUMBER OF THE UNIVERSE

被引：21

作者：

DIMOPOULOS, S

FEINBERG, G

机构：

来源：

PHYSICAL REVIEW D | 1979年 / 20卷 / 06期

关键词：

D O I：

10.1103/PhysRevD.20.1283

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

If the universe has an excess of electron neutrinos comparable to the number of photons, then the cosmological helium abundance does not restrict the number of neutrino types significantly. We discuss lepton-number-violating processes, both in grand unified theories, and arising from black-hole production and decay in the early universe. © 1979 The American Physical Society.

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页码：1283 / 1289

页数：7

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