The standard model and parity conservation

Details The standard model and parity conservation The standard model and parity conservation

2000-10-18

arxiv.org/abs/hep-lat/0010031v1

Nucl.Phys.Proc.Suppl. 94 (2001) 781-784

Physics

High Energy Physics

High Energy Physics - Lattice

4 pages, latex and espcrc2.sty, Lattice2000 and to appear in Nucl. Phys. (Suppl.) B

Scientific paper

10.1016/S0920-5632(01)00914-8

On the basis of previous work on chiral gauged fermions on a lattice, we discuss the lattice-regularization of the standard model by introducing two Weyl fields interacting with quarks and leptons. These interactions form massive bound states to gauge-invariantly decouple doublers at high energies and these bound states dissolve into their constituents at low energies. No any hard spontaneous symmetry breakings occur at the lattice scale \pi/a. As a consequence, the gauge symmetries of the standard model are realized by both massive vectorlike spectra at high energies and massless chiral spectra at low energies. Such a scenario is consistent with the gauge-anomaly cancelation, flavor-singlet anomaly and Witten's anomaly. These studies predict that the parity symmetry must be restored at high energies.

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