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    TH Cosmo Coffee

    Hypermagnetic Fields and Baryon Asymmetry from Pseudoscalar Inflation

    by Mohamed Anber (EPFL)

    → Europe/Zurich
    4/2-011 - TH common room (CERN)

    4/2-011 - TH common room

    CERN

    15
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    Description
    I show that maximally helical hypermagnetic fields produced during pseudoscalar inflation can generate the observed baryon asymmetry of the universe via the B+L anomaly in the Standard Model. Most of the parameter space of pseudoscalar inflation that explains the cosmological data leads to baryon overproduction, hence the models of natural inflation are constrained. I also point out a connection between the baryon number and topology of the relic magnetic fields.