4.6 Article

Constraints on massive gravity theory from big bang nucleosynthesis

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Publisher

IOP PUBLISHING LTD
DOI: 10.1088/1475-7516/2012/10/028

Keywords

big bang nucleosynthesis; quantum gravity phenomenology

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The massive gravity cosmology is studied in the scenario of big bang nucleosynthesis. By making use of current bounds on the deviation from the fractional mass, we derive the constraints on the free parameters of the theory. The cosmological consequences of the model are also analyzed in the framework of the PAMELA experiment, i.e. an excess of positron events, that the conventional cosmology and particle physics cannot explain.

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