Abstract

Departures from thermal equilibrium which are likely to occur in an expanding universe allow the production of an appreciable net baryon density by processes which violate baryon-number conservation. It is shown that the resulting baryon to entropy ratio can be calculated in terms of purely microscopic quantities.

Keywords

BaryonPhysicsBaryon numberEntropy productionEntropy (arrow of time)Particle physicsUniverseThermal equilibriumStatistical physicsAstrophysicsQuantum mechanics

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Publication Info

Year
1979
Type
article
Volume
42
Issue
13
Pages
850-853
Citations
586
Access
Closed

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Steven Weinberg (1979). Cosmological Production of Baryons. Physical Review Letters , 42 (13) , 850-853. https://doi.org/10.1103/physrevlett.42.850

Identifiers

DOI
10.1103/physrevlett.42.850