Dual nature of Ricci scalar and creation of spinless particles

Sinha, KP and Srivastava, SK (1995) Dual nature of Ricci scalar and creation of spinless particles. In: Pramana, Journal of Physics, 44 (4). pp. 333-345.

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Abstract

Manifestation of a Ricci scalar like a matter field as well as a geometrical field, at high energy, has been noted earlier. Here, its interaction with another scalar field is considered in four-dimensional curved space-time. This interaction leads to the production of a large number of pairs of spinless particle-antiparticles due to expansion of the early universe in the vacuum state (provided by the temperature dependent Coleman-Weinberg like potential for the Ricci field), where spontaneous symmetry breaking takes place.

Item Type:	Journal Article
Publication:	Pramana, Journal of Physics
Publisher:	Indian Academy Of Sciences
Additional Information:	Copyright of this article belongs to Indian Academy Of Sciences.
Keywords:	R2 gravity;Dual nature of Ricci scalar;Early Universe;Particle production
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	24 Jun 2007
Last Modified:	19 Sep 2010 04:31
URI:	http://eprints.iisc.ac.in/id/eprint/8597

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