Cosmological neutrino signatures for grand unification scale physics

被引：77

作者：

Sigl, G

Lee, SJ

Schramm, DN

Coppi, P

机构：

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

[2] YALE UNIV, DEPT ASTRON, NEW HAVEN, CT 06520 USA

来源：

PHYSICS LETTERS B | 1997年 / 392卷 / 1-2期

基金：

美国国家科学基金会; 美国国家航空航天局;

关键词：

neutrino astronomy; gamma-ray astrophysics; ultra-high energy cosmic rays;

D O I：

10.1016/S0370-2693(96)01534-1

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Physics beyond the standard model might imply the cosmological production of particles with grand unification scale energies. Nucleons and gamma-rays from such processes are candidates for the cosmic rays observed beyond 100 EeV (10(20) eV). Using a new particle propagation code, we calculate the neutrino fluxes predicted by such scenarios if consistency with the observed cosmic ray flux and the universal gamma-ray background at 1-10GeV is required, Flux levels detectable by proposed km(3) scale neutrino observatories are allowed by these constraints. Bounds on or detection of a neutrino flux above similar to 1 EeV would allow neutrino astronomy to probe grand unification scale physics.

引用

页码：129 / 134

页数：6

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