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Title: Cosmic Topological Defects, Highest Energy Cosmic Rays, and the Baryon Asymmetry of the Universe
Authors: Bhattacharjee, P
Keywords: Cosmic Topological Defects;Highest Energy Cosmic Rays;Baryon Asymmetry
Issue Date: Jul-1998
Publisher: The American Physical Society
Citation: Physical Review Letters, Vol. 81, No. 2, pp. 260 - 263
Abstract: It is pointed out that the observed extremely high energy cosmic rays (EHECR) above 1011 GeV and the observed baryon asymmetry of the Universe (BAU) may have a common origin in baryon number violating decays of supermassive X particles released from cosmic topological defects (TDs) such as cosmic strings and monopoles. The X particles produced by TDs in the recent epochs produce the EHECR, while the BAU is created by X particles released from TDs mainly in the very early Universe. In this scenario the EHECR is predicted to contain baryons as well as antibaryons with a small asymmetry between the two.
ISSN: 0031 - 9007
Appears in Collections:IIAP Publications

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