Issue |
Europhys. Lett.
Volume 74, Number 4, May 2006
|
|
---|---|---|
Page(s) | 747 - 753 | |
Section | Geophysics, astronomy, and astrophysics | |
DOI | https://doi.org/10.1209/epl/i2005-10573-4 | |
Published online | 12 April 2006 |
Baryon asymmetry in the Universe resulting from Lorentz violation
1
Dipartimento di Scienze Fisiche, Università di Napoli “Federico II” Complesso Universitario di Monte S. Angelo, Via Cinthia, I-80126 Napoli, Italy
2
Istituto Nazionale di Fisica Nucleare, Sezione di Napoli - Complesso Universitario di Monte S. Angelo, Via Cinthia, I-80126 Napoli, Italy
3
Facoltà di Ingegneria, Università Statale di Bergamo viale Marconi 5, 24044 Dalmine (BG), Italy
4
Istituto Nazionale di Fisica Nucleare, Sezione di Milano via Celoria 16, I-20133 Milano, Italy
Corresponding authors: elisabetta.digrezia@na.infn.it salvatore.esposito@na.infn.it salesi@unibg.it
Received:
28
November
2005
Accepted:
21
March
2006
We analyze the phenomenological consequences of a Lorentz-violating energy-momentum dispersion relation in order to give a simple explanation for the baryon asymmetry in the Universe. By assuming very few hypotheses, we propose a straightforward mechanism for generating the observed matter-antimatter asymmetry which entails a Lorentz-breakdown energy scale of the order of the Greisen-Zatsepin-Kuzmin cut-off.
PACS: 98.80.Bp – Origin and formation of the Universe / 11.55.Fv – Dispersion relations / 11.30.Cp – Lorentz and Poincaré invariance
© EDP Sciences, 2006
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