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http://hdl.handle.net/2248/3169
Title: | TeV and Superheavy Particles from Supersymmetric Topological Defects, the Extragalactic γ-ray Background, and the Highest Energy Cosmic Rays |
Authors: | Bhattacharjee, P Shafi, Qaisar Stecker, F. W |
Keywords: | Cosmic Topological Defects Supersymmetric Theories Extragalactic Diffuse Cosmic Ray Cosmic Strings Massive Particle Radiation |
Issue Date: | Apr-1998 |
Publisher: | The American Physical Society |
Citation: | Physical Review Letters, Vol. 80, No. 17, pp. 3698 - 3701 |
Abstract: | Cosmic topological defects in a wide class of supersymmetric theories can simultaneously be sources of Higgs bosons of mass~supersymmetry breaking scale~TeV, as well as superheavy gauge bosons of mass~η>>1 TeV, η being the gauge symmetry breaking scale. Decay of these Higgs and gauge bosons may contribute significantly to the extragalactic diffuse γ-ray background (EDGRB) above ~10 GeV and explain the highest energy cosmic ray (HECR) flux above ~10/Sup11 GeV, respectively. Cosmic strings with η much above 10/Sup14 GeV overproduce both HECR and EDGRB, and hence are ruled out, if massive particle radiation is their dominant energy loss mechanism. |
URI: | http://hdl.handle.net/2248/3169 |
ISSN: | 0031-9007 |
Appears in Collections: | IIAP Publications |
Files in This Item:
File | Description | Size | Format | |
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TeV and Superheavy Particles from Supersymmetric Topological Defects | 151.35 kB | Adobe PDF | ![]() View/Open |
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