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Title: TeV and Superheavy Particles from Supersymmetric Topological Defects, the Extragalactic {ital {gamma}} -ray Background, and the Highest Energy Cosmic Rays

Abstract

Cosmic topological defects in a wide class of supersymmetric theories can simultaneously be sources of Higgs bosons of mass{approximately}supersymmetry breaking scale{approximately}TeV , as well as superheavy gauge bosons of mass{approximately}{eta}{gt}1 TeV , {eta} being the gauge symmetry breaking scale. Decay of these Higgs and gauge bosons may contribute significantly to the extragalactic diffuse {gamma} -ray background (EDGRB) above {approximately}10 GeV and explain the highest energy cosmic ray (HECR) flux above {approximately}10{sup 11} GeV , respectively. Cosmic strings with {eta} much above 10{sup 14} GeV overproduce both HECR and EDGRB, and hence are ruled out, {ital if} massive particle radiation is their dominant energy loss mechanism. {copyright} {ital 1998} {ital The American Physical Society}

Authors:
;  [1];  [2];  [3]
  1. Laboratory for High Energy Astrophysics, Code 661, NASA/Goddard Space Flight Center, Greenbelt, Maryland 20771 (United States)
  2. Indian Institute of Astrophysics, Bangalore-560 034 (India)
  3. Bartol Research Institute, University of Delaware, Newark, Delaware 19716 (United States)
Publication Date:
OSTI Identifier:
610729
DOE Contract Number:  
FG02-91ER40626
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 80; Journal Issue: 17; Other Information: PBD: Apr 1998
Country of Publication:
United States
Language:
English
Subject:
66 PHYSICS; SUPERSYMMETRY; TOPOLOGY; DEFECTS; GAMMA RADIATION; ENERGY LOSSES; SYMMETRY BREAKING; GAUGE INVARIANCE; HIGGS BOSONS; MASS; COSMIC RAY FLUX; GALAXIES; PARTICLE PRODUCTION; SIMULATION; GRAND UNIFIED THEORY

Citation Formats

Bhattacharjee, P, Stecker, F W, Bhattacharjee, P, and Shafi, Q. TeV and Superheavy Particles from Supersymmetric Topological Defects, the Extragalactic {ital {gamma}} -ray Background, and the Highest Energy Cosmic Rays. United States: N. p., 1998. Web. doi:10.1103/PhysRevLett.80.3698.
Bhattacharjee, P, Stecker, F W, Bhattacharjee, P, & Shafi, Q. TeV and Superheavy Particles from Supersymmetric Topological Defects, the Extragalactic {ital {gamma}} -ray Background, and the Highest Energy Cosmic Rays. United States. https://doi.org/10.1103/PhysRevLett.80.3698
Bhattacharjee, P, Stecker, F W, Bhattacharjee, P, and Shafi, Q. Wed . "TeV and Superheavy Particles from Supersymmetric Topological Defects, the Extragalactic {ital {gamma}} -ray Background, and the Highest Energy Cosmic Rays". United States. https://doi.org/10.1103/PhysRevLett.80.3698.
@article{osti_610729,
title = {TeV and Superheavy Particles from Supersymmetric Topological Defects, the Extragalactic {ital {gamma}} -ray Background, and the Highest Energy Cosmic Rays},
author = {Bhattacharjee, P and Stecker, F W and Bhattacharjee, P and Shafi, Q},
abstractNote = {Cosmic topological defects in a wide class of supersymmetric theories can simultaneously be sources of Higgs bosons of mass{approximately}supersymmetry breaking scale{approximately}TeV , as well as superheavy gauge bosons of mass{approximately}{eta}{gt}1 TeV , {eta} being the gauge symmetry breaking scale. Decay of these Higgs and gauge bosons may contribute significantly to the extragalactic diffuse {gamma} -ray background (EDGRB) above {approximately}10 GeV and explain the highest energy cosmic ray (HECR) flux above {approximately}10{sup 11} GeV , respectively. Cosmic strings with {eta} much above 10{sup 14} GeV overproduce both HECR and EDGRB, and hence are ruled out, {ital if} massive particle radiation is their dominant energy loss mechanism. {copyright} {ital 1998} {ital The American Physical Society}},
doi = {10.1103/PhysRevLett.80.3698},
url = {https://www.osti.gov/biblio/610729}, journal = {Physical Review Letters},
number = 17,
volume = 80,
place = {United States},
year = {1998},
month = {4}
}