Ultra-high energy neutrino fluxes: new constraints and implications

被引：102

作者：

Semikoz, DV

Sigl, G

机构：

[1] Max Planck Inst Phys & Astrophys, Werner Heisenberg Inst Phys, D-80805 Munich, Germany

[2] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia

[3] CNRS, Inst Astrophys Paris, GReCO, F-75014 Paris, France

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2004年 / 04期

关键词：

ultra high energy cosmic rays; ultra high energy photons and neutrinos;

D O I：

10.1088/1475-7516/2004/04/003

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We apply new upper limits on neutrino fluxes and the diffuse extragalactic component of the GeV gamma-ray flux to various scenarios for ultra-high energy cosmic rays and neutrinos. As a result we find that extragalactic top-down sources cannot contribute significantly to the observed flux of highest energy cosmic rays, except if the AGASA flux normalization is too high by at least a factor of two. The explanation of the observed ultra-high energy cosmic ray flux by the decay products of Z bosons produced in ultra-high energy neutrino interaction with relic neutrino background is ruled out by recent data from GLUE and FORTE experiments, provided cosmological limits on neutrino mass and clustering apply.

引用

页码：39 / 57

页数：19

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