Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/11146
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Type: | Journal article |
Title: | Enhanced direct CP violation in B±,⁰→π+π-K±,⁰ |
Other Titles: | Enhanced direct CP violation in B+/-,(0)-> pi+pi-K+/-,(0) |
Author: | Leitner, O. Guo, X. Thomas, A. |
Citation: | Physical Review D: Particles, Fields, Gravitation and Cosmology, 2002; 66(9):096008-1-096008-19 |
Publisher: | American Physical Soc |
Issue Date: | 2002 |
ISSN: | 1550-7998 0556-2821 |
Organisation: | Special Research Centre for the Subatomic Structure of Matter |
Abstract: | We investigate in a phenomenological way direct CP violation in the hadronic decays B±,0→π+π-K±,0 where the effect of ρ-ω mixing is included. If Nceff (the effective parameter associated with factorization) is constrained using the most recent experimental branching ratios (to ρ0K0, ρ±K∓, ρ±K0, ρ0K± and ωK±) from the BABAR, BELLE and CLEO Collaborations, we get a maximum CP violating asymmetry amax in the range -25% to +49% for B-→π+π-K- and -24% to +55% for B0→π+π-K0. We also find that CP violation is strongly dependent on the Cabibbo-Kobayashi-Maskawa matrix elements. Finally, we show that the sign of sinδ is always positive in the allowed range of Nceff and hence, a measurement of direct CP violation in B±,0→π+π-K±,0 would remove the mod(π) ambiguity in arg[-VtsVtb⋆/VusVub⋆]. |
Rights: | ©2002 American Physical Society |
DOI: | 10.1103/PhysRevD.66.096008 |
Published version: | http://dx.doi.org/10.1103/physrevd.66.096008 |
Appears in Collections: | Aurora harvest 2 Special Research Centre for the Subatomic Structure of Matter publications |
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hdl_11146.pdf | Published version | 1.14 MB | Adobe PDF | View/Open |
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