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Is the baryon asymmetry of the Universe related to galactic magnetic fields?

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Is the baryon asymmetry of the Universe related to galactic magnetic fields?

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Semikoz, Victor B.; Sokoloff, D.D.; Furtado Valle, José Wagner

Aquest document és un/a article, creat/da en: 2009

A tiny hypermagnetic field generated before the electroweak phase transition (EWPT) associated to the generation of elementary particle masses can polarize the early Universe hot plasma at huge redshifts z > 10^15. The anomalous violation of the right-handed electron current characteristic of the EWPT converts the lepton asymmetry into a baryon asymmetry. Under reasonable approximations, the magnetic field strength inferred by requiring such 'leptogenic' origin for the observed baryon asymmetry of the Universe matches the large-scale cosmological magnetic field strengths estimated from current astronomical observations.

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