7 papers
Product Groups, Discrete Symmetries, and Grand Unification
Yael Shadmi
We present GUT models based on an GUT group. These models maintain the main successes of simple-group GUTs but permit simple solutions to the doublet-triplet sp…
CP Violation - A New Era
Yosef Nir
We give a pedagogical review of the theory of CP violation with emphasis on the implications of recent experimental results. The review includes: (i) A detailed description of how…
CP Violation In and Beyond the Standard Model
Yosef Nir
The special features of CP violation in the Standard Model are presented. The significance of measuring CP violation in B, K and D decays is explained. The predictions of the Stand…
CP Violation in B Decays
Yosef Nir
In the near future, we will have the first significant experimental measurements of CP violation in B decays. These measurements will easily test crucial questions such as whether…
On Supersymmetric CP Violation
Yosef Nir
We discuss the discovery potential for New Physics of various measurements of CP violation. If nature is supersymmetric, then the flavor problem is even more mysterious than in the…
Missing (up) Mass, Accidental Anomalous Symmetries, and the Strong CP Problem
Tom Banks, Yosef Nir, Nathan Seiberg
We reconsider the massless up quark solution of the strong CP problem. We show that an anomaly free horizontal symmetry can naturally lead to a massless up quark and to a correspon…