Baryogenesis, sphalerons, and the cogeneration of dark matter

Details Baryogenesis, sphalerons, and the cogeneration of dark matter Baryogenesis, sphalerons, and the cogeneration of dark matter

Nov 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991phrvd..44.3062b&link_type=abstract

Physical Review D (Particles, Fields, Gravitation, and Cosmology), Volume 44, Issue 10, 15 November 1991, pp.3062-3066

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Particle-Theory And Field-Theory Models Of The Early Universe, Applications Of Electroweak Models To Specific Processes

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Processes involving the electroweak anomaly can erase completely a primordial baryon and lepton asymmetry if B-L=0. This has led to the search for plausible mechanisms for weak-scale baryogenesis, or for the generation of a primordial B-L asymmetry. Here it is emphasized that if another quantum number conserved up to anomalies is present electroweak anomaly processes would not necessarily erase a primordial baryon asymmetry even if B-L=0. Moreover, an asymmetry in the new quantum number that is comparable to the baryon asymmetry is generated concomitantly due to the electroweak anomaly. This asymmetry could be the origin of dark matter.

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