CP violation and CKM phases from angular distributions for B{sub s} decays into admixtures of CP eigenstates
- Institut fuer Theoretische Teilchenphysik, Universitaet Karlsruhe, D-76128 Karlsruhe (Germany)
- Theoretical Physics Division, Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States)
We investigate the time evolutions of angular distributions for B{sub s} decays into final states that are admixtures of CP-even and CP-odd configurations. A sizable lifetime difference between the B{sub s} mass eigenstates allows a probe of CP violation in time-dependent untagged angular distributions. Interference effects between different final state configurations of B{sub s}{r_arrow}D{sub s}{sup {asterisk}+}D{sub s}{sup {asterisk}{minus}}, J/{psi}{phi} determine the Wolfenstein parameter {eta} from {ital untagged} data samples, or, if one uses {vert_bar}V{sub ub}{vert_bar}/{vert_bar}V{sub cb}{vert_bar} as additional input, the notoriously difficult to measure CKM angle {gamma}. Another determination of {gamma} is possible by using isospin symmetry of strong interactions to relate {ital untagged} data samples of B{sub s}{r_arrow}K{sup {asterisk}+}K{sup {asterisk}{minus}} and B{sub s}{r_arrow}K{sup {asterisk}0}{bar K}{sup {asterisk}0}. We note that the {ital untagged} angular distribution for B{sub s}{r_arrow}{rho}{sup 0}{phi} provides interesting information about electroweak penguin diagrams. {copyright} {ital 1997} {ital The American Physical Society}
- Research Organization:
- Fermi National Accelerator Laboratory
- DOE Contract Number:
- AC02-76CH03000
- OSTI ID:
- 471218
- Journal Information:
- Physical Review, D, Journal Name: Physical Review, D Journal Issue: 1 Vol. 55; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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