Testing the Standard Model and Schemes for Quark Mass Matrices with CP Asymmetries in B Decays

Abstract

The values of $\sin (2\alpha )$ and $\sin (2\beta )$, where $\alpha$ and $\beta$ are angles of the unitarity triangle, will be readily measured in a B factory (and maybe also in hadron colliders). We study the standard model constraints in the $\sin (2\alpha )-\sin (2\beta )$ plane. We use the results from recent analyses of $f_B$ and ${\tau }_b|V_{cb}{|}^2$ which take into account heavy quark symmetry considerations. We find $\sin (2\beta )\ge 0.15$ and most likely $\sin (2 β) \roughly{>} 0.6$, and emphasize the strong correlations between $\sin (2\alpha )$ and $\sin (2\beta )$. Various schemes for quark mass matrices allow much smaller areas in the $\sin (2\alpha )-\sin (2\beta )$ plane. We study the schemes of Fritzsch, of Dimopoulos, Hall and Raby, and of Giudice, as well as the ``symmetric CKM'' idea, and show how CP asymmetries in B decays will crucially test each of these schemes.

11 pages and 4 postscript figures available on request, LaTeX, WIS-92/52/Jun-PH, LBL-32563

References in corpus (3)

• A new ansatz for quark and lepton mass matrices
• Test of the Dimopouos-Hall-Raby Ansatz for Fermion Mass Matrices
• Predictions for neutral K and B meson physics

Cited by in corpus (11)

• Phenomenology of models with more than two Higgs doublets
• Flavor Changing Scalar Interactions
• A Model Independent Construction of the Unitarity Triangle
• Detecting New Physics from CP-violating phase measurements in B decays
• Implications of $b\to s\gamma$ for CP Violation in Charged Scalar Exchange
• The CKM Matrix and The Unitarity Triangle: Another Look
• Fritzsch-Xing mass matrices, $V_{td}$ and CP Violating phase $\delta$
• Wolfenstein Parametrization Re-examined
• Implications of the Fleischer-Mannel Bound
• CP Violation in B Decays: The Standard Model and Beyond
• Theory of CP Violation