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Title: Split fermions baryogenesis from the Kobayashi-Maskawa phase

Abstract

A new scenario of baryogenesis is presented, within the split fermions framework. Our model employs a first order phase transition of the localizer field. The standard model (SM), Kobayashi-Maskawa phase induces a sizable CP asymmetry. The usual suppression of CP violation which arises in the SM baryogenesis is absent due to the existence of order one Yukawa couplings before the fermions are localized in the extra dimension. Models of the above type naturally contain B-L violating operators, allowed by the SM symmetries, which induce the baryon asymmetry. Our mechanism demonstrates the following concept: the flavor puzzle and the SM failure to create the baryon asymmetry are linked and may have a common resolution which does not rely on introduction of new CP violating sources.

Authors:
 [1];  [2]
  1. Theoretical Physics Group, Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, University of California, California 94720 (United States)
  2. Weizmann Institute of Science, Rehovot (Israel)
Publication Date:
OSTI Identifier:
20711549
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 72; Journal Issue: 10; Other Information: DOI: 10.1103/PhysRevD.72.103522; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ASYMMETRY; BARYONS; CONSERVATION LAWS; CP INVARIANCE; FLAVOR MODEL; KOBAYASHI-MASKAWA MATRIX; PHASE TRANSFORMATIONS; RESOLUTION; STANDARD MODEL; SYMMETRY

Citation Formats

Perez, Gilad, and Volansky, Tomer. Split fermions baryogenesis from the Kobayashi-Maskawa phase. United States: N. p., 2005. Web. doi:10.1103/PhysRevD.72.103522.
Perez, Gilad, & Volansky, Tomer. Split fermions baryogenesis from the Kobayashi-Maskawa phase. United States. doi:10.1103/PhysRevD.72.103522.
Perez, Gilad, and Volansky, Tomer. Tue . "Split fermions baryogenesis from the Kobayashi-Maskawa phase". United States. doi:10.1103/PhysRevD.72.103522.
@article{osti_20711549,
title = {Split fermions baryogenesis from the Kobayashi-Maskawa phase},
author = {Perez, Gilad and Volansky, Tomer},
abstractNote = {A new scenario of baryogenesis is presented, within the split fermions framework. Our model employs a first order phase transition of the localizer field. The standard model (SM), Kobayashi-Maskawa phase induces a sizable CP asymmetry. The usual suppression of CP violation which arises in the SM baryogenesis is absent due to the existence of order one Yukawa couplings before the fermions are localized in the extra dimension. Models of the above type naturally contain B-L violating operators, allowed by the SM symmetries, which induce the baryon asymmetry. Our mechanism demonstrates the following concept: the flavor puzzle and the SM failure to create the baryon asymmetry are linked and may have a common resolution which does not rely on introduction of new CP violating sources.},
doi = {10.1103/PhysRevD.72.103522},
journal = {Physical Review. D, Particles Fields},
number = 10,
volume = 72,
place = {United States},
year = {Tue Nov 15 00:00:00 EST 2005},
month = {Tue Nov 15 00:00:00 EST 2005}
}