Hard component of ultra-high energy cosmic rays and vortons

被引：6
作者：
Masperi, L
Orsaria, M
机构：
[1] Ctr Latinoamer Fis, BR-22290140 Rio De Janeiro, Brazil
[2] Comis Nacl Energia Atom, Lab TANDAR, RA-1429 Buenos Aires, DF, Argentina
来源：
ASTROPARTICLE PHYSICS | 2002年 / 16卷 / 04期
关键词：
cosmic rays; cosmic strings; vortons;
D O I：
10.1016/S0927-6505(01)00119-0
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Observed events of ultra-high energy cosmic rays may indicate a hard component for the energy spectrum of their flux, which might have origin in the decay of long-lived vortons presumably condensed in the galactic halo. To be consistent with the needed present density, vortons may have been formed during the breaking of an abelian symmetry contained in a large GUT group like E-6 and a part of them could haven survived the destabilization caused by the electroweak transition. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：411 / 423
页数：13
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