On Testing Unitarity of the Quark Mixing Matrix
Abstract
Unitarity triangles and characteristic measurables of the 3 × 3 Cabibbo-Kobayashi-Maskawa (CKM) matrix are discussed. Beyond the 3 × 3 CKM scheme we make a rephasing-invariant generalization of the Gronau-WylerDunietz approach to determine the weak phase shift in B u± → DK± or in B d → DK*, which is only sensitive to the underlying new physics in D 0-D 0 mixing. We also show that the weak angle γ ≡ arg(- V ub*V udV cbV cd*) is possible to be determined from the CP asymmetries of some B d decays, even in a non-standard model with an extended quark sector. Brief comments are given on tests of unitarity of the 3 × 3 CKM matrix.
- Publication:
-
Nuclear Physics B Proceedings Supplements
- Pub Date:
- June 1996
- DOI:
- 10.1016/0920-5632(96)00360-X
- arXiv:
- arXiv:hep-ph/9510373
- Bibcode:
- 1996NuPhS..50...24X
- Keywords:
-
- High Energy Physics - Phenomenology;
- Nuclear Theory
- E-Print:
- Postscript file 15 pages. A talk given at the Conference on Production and Decay of Hyperons, Charm and Beauty Hadrons, Strasbourg, France, September 5 - 8, 1995 (to appear in the conference proceedings)