2012/05/31 by Kimihide Nishimura · 1 citation
Physics and Astronomy · #physics.gen-ph
paper · pdf · doi:10.1093/ptep/pts091
published as Prog Theor Exp Phys (2013) 2013 (2): 023B06 · 11 pages, 1 figure, no change made from the previous version except for updating the e-mail address
arxiv created 2017/05/15 · arxiv updated 2017/05/16
It is shown that a chiral SU(2) model can break Lorentz symmetry spontaneously at the Lagrangian level when gauge bosons become massive. This model seems to propose the principles and conceptual foundations leading to a unified picture of fermions, and may reduce the standard theory to a far simpler form. The model suggests describing leptons and quarks as quasi-excitations, while electromagnetic and strong interactions as secondary interactions mediated by Nambu-Goldstone bosons originating from spontaneous violations of global SU(2) and rotational symmetries. Both the possibility of observing Lorentz-violating phenomena and their magnitudes are discussed. The model also provides an alternative scenario for baryon and lepton asymmetries of the Universe.