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Photon Creation in the Universe and Primordial Nucleosynthesis

Published online by Cambridge University Press:  25 May 2016

J.A. S. Lima ,
J. S. Alcaniz ,
J. Santos  and
R. Silva Jr.
J.A. S. Lima
Affiliation:
Departamento de física - UFRN, CP 1641, 59072-970 Natal, RN - Brasil
J. S. Alcaniz
Affiliation:
Departamento de física - UFRN, CP 1641, 59072-970 Natal, RN - Brasil
J. Santos
Affiliation:
Departamento de física - UFRN, CP 1641, 59072-970 Natal, RN - Brasil
R. Silva Jr.
Affiliation:
Departamento de física - UFRN, CP 1641, 59072-970 Natal, RN - Brasil

Abstract

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In hot big bang cosmologies, the irreversible process of continous photon creation may phenomenologically be described through a thermodynamic approach. In these models, the radiation temperature law depends on a phenomenological parameter β which is closely related to the photon creation rate. It is shown that a stringent constraint on the value of this parameter is imposed from primordial nucleosynthesis.

Type
2. Production and Destruction of the Elements
Information
Symposium - International Astronomical Union , Volume 198: The Light Elements and their Evolution , 2000 , pp. 113 - 115
Copyright
Copyright © Astronomical Society of the Pacific 2000 

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