Generalized analysis on B{yields}K*{rho} within and beyond the standard model: Can it help understand the B{yields}K{pi} puzzle?
- Department of Physics, Yonsei University, Seoul 120-479 (Korea, Republic of)
- Institute of Mathematical Sciences, Taramani, Chennai 600113 (India)
We study B{yields}K*{rho} modes that are analogues of the much studied B{yields}K{pi} modes with B decaying to two vector mesons instead of pseudoscalar mesons, using topological amplitudes in the quark diagram approach. We show how B{yields}K*{rho} modes can be used to obtain many more observables than those for B{yields}K{pi} modes, even though the quark level subprocesses of both modes are exactly the same. All the theoretical parameters (except for the weak phase {gamma}), such as the magnitudes of the topological amplitudes and their strong phases, can be determined in terms of the observables without any model-dependent assumption. We demonstrate how B{yields}K*{rho} can also be used to verify if there exist any relations between theoretical parameters, such as the hierarchy relations between the topological amplitudes and possible relations between the strong phases. Conversely, if there exist reliable theoretical estimates of amplitudes and strong phases, the presence of new physics could be probed. We show that if the tree and color-suppressed tree are related to the electroweak penguins and color-suppressed electroweak penguins, it is not only possible to verify the validity of such relations but also to have a clean measurement of new physics parameters. We also present a numerical study to examine which of the observables are more sensitive to new physics.
- OSTI ID:
- 21032346
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 76, Issue 7; Other Information: DOI: 10.1103/PhysRevD.76.074019; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
Similar Records
Branching ratios and CP asymmetries of B{yields}a{sub 1}(1260){pi} and a{sub 1}(1260)K decays
Extraction of {gamma} from charmless hadronic B {yields} PP decays using SU(3) flavor symmetry