Astrophysical bounds on superlight gravitinos

被引：19

作者：

Grifols, JA

Mohapatra, RN

Riotto, A

机构：

[1] UNIV AUTONOMA BARCELONA,IFAE,BELLATERRA 08193,SPAIN

[2] UNIV MARYLAND,DEPT PHYS,COLLEGE PK,MD 20742

[3] FERMILAB NATL ACCELERATOR LAB,BATAVIA,IL 60510

来源：

PHYSICS LETTERS B | 1997年 / 401卷 / 3-4期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0370-2693(97)00394-8

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We derive the allowed mass range for the superlight gravitino present in a large class of supersymmetric models from the observed neutrino luminosity from Supernova 1987A. We find that for photino masses of order of 100 GeV, the mass range 2.6 x 10(-8) eV less than or equal to mg < 2.2 x 10(-6) eV for the gravitino (g) over tilde is excluded by SN1987A observations, Unlike the bounds on mg from nucleosynthesis, the bounds in the present paper do not depend critically upon the uncertainties of the observational input. (C) 1997 Elsevier Science B.V.

引用

页码：283 / 286

页数：4

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