Polarization states in B{yields}{rho}K* and new physics
- Physique des Particules, Universite de Montreal, C.P. 6128, succ. centre-ville, Montreal, QC, H3C 3J7 (Canada)
- Department of Physics, University of Toronto, 60 St. George Street, Toronto, ON, M5S 1A7 (Canada)
- Physics Department, McGill University, 3600 University St., Montreal, Quebec, H3A 2T8 (Canada)
The standard model explanations of the anomalously-large transverse polarization fraction f{sub T} in B{yields}{phi}K* can be tested by measuring the polarizations of the two decays B{sup +}{yields}{rho}{sup +}K*{sup 0} and B{sup +}{yields}{rho}{sup 0}K*{sup +}. For the scenario in which the transverse polarizations of both B{yields}{rho}K* decays are predicted to be large, we derive a simple relation between the f{sub T}'s of these decays. If this relation is not confirmed experimentally, this would yield an unambiguous signal for new physics. The new-physics operators which can account for the discrepancy in B{yields}{pi}K decays will also contribute to the polarization states of B{yields}{rho}K*. We compute these contributions and show that there are only two operators which can simultaneously account for the present B{yields}{pi}K and B{yields}{rho}K* data. If the new physics obeys an approximate U-spin symmetry, the B{yields}{phi}K* measurements can also be explained.
- OSTI ID:
- 20713822
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 72, Issue 9; Other Information: DOI: 10.1103/PhysRevD.72.094008; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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