INDIRECT PHOTOFISSION OF LIGHT-ELEMENTS FROM HIGH-ENERGY NEUTRINOS IN THE EARLY UNIVERSE

被引：12

作者：

GRATSIAS, J ^{[1
]}

SCHERRER, RJ ^{[1
]}

SPERGEL, DN ^{[1
]}

机构：

[1] PRINCETON UNIV OBSERV,PRINCETON,NJ 08544

来源：

PHYSICS LETTERS B | 1991年 / 262卷 / 2-3期

基金：

美国国家科学基金会; 美国国家航空航天局;

关键词：

D O I：

10.1016/0370-2693(91)91570-L

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

High-energy neutrinos in the early universe can produce electron-positron pairs by annihilating with cosmic background neutrinos. These high-energy electrons thermalize to produce a cascade of lower-energy photons which can fission light elements. We use this process to constrain "invisible" particle decays, in which a decaying particle produces neutrinos but no electromagnetically interacting particles in its decay. These limits are applied to specific neutrino and gravitino decay models.

引用

页码：298 / 302

页数：5

共 15 条

[1]

CHIKASHIGE Y, 1980, PHYS REV LETT, V45, P1926, DOI 10.1103/PhysRevLett.45.1926

[2] COSMOLOGICAL GRAVITINO REGENERATION AND DECAY [J].