skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Spontaneous CP-violation in extended technicolor models

Thesis/Dissertation ·
OSTI ID:5794850

The spontaneous CP-violation in models with dynamically broken weak interaction symmetries, i.e., extended technicolor models is examined. Attention is focussed on situations in which the global, flavor symmetry of the strong, color-technicolor, interactions is a product of chiral, horizontal U(2), or, when weak degrees of freedom are included, U(4) factors. In this context, we demonstrate the Eichten, Lane, Preskill CP-violation mechanism and show that the nemesis of this mechanism, strong CP-violation, can be easily avoided by imposing a discrete symmetry on the chiral perturbation. When strong CP-invariance is preserved by this means, we find that spontaneously generated CP-violating phases are suppressed by a ratio of extended technicolor mass scales. In addition, we consider, and attempt to analyze the direct contribution to strong CP-violation from colored technifermions.

Research Organization:
Columbia Univ., New York (USA)
OSTI ID:
5794850
Resource Relation:
Other Information: Thesis (Ph. D.)
Country of Publication:
United States
Language:
English