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Can mirror matter solve the the cosmological lithium problem?

A. Coc 1 J. P. Uzan 2 E. Vangioni 2
CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse, CSNSM - Centre de Sciences Nucléaires et de Sciences de la Matière
Abstract : The abundance of lithium-7 confronts cosmology with a long lasting inconsistency between the predictions of standard Big Bang Nucleosynthesis with the baryonic density determined from the Cosmic Microwave Background observations on the one hand, and the spectroscopic determination of the lithium-7 abundance on the other hand. We investigated the influence of the existence of a mirror world, focusing on models in which mirror neutrons can oscillate into ordinary neutrons. Such a mechanism allows for an effective late time neutron injection, which induces an increase of the destruction of beryllium-7and thus a lower final lithium-7 abundance.
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Submitted on : Thursday, August 28, 2014 - 3:38:55 PM
Last modification on : Tuesday, November 16, 2021 - 4:01:02 AM

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A. Coc, J. P. Uzan, E. Vangioni. Can mirror matter solve the the cosmological lithium problem?. AIP Conference Proceedings, American Institute of Physics, 2014, 1594, pp.12-17. ⟨10.1063/1.4874037⟩. ⟨in2p3-01058908⟩



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