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http://hdl.handle.net/2445/131433
Title: | Measurements of CP-Violating Asymmetries in B0 → a±1(1260)π∓ Decays |
Author: | Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Física de partícules Experiments Violació CP (Física nuclear) Particle physics Experiments CP violation (Nuclear physics) |
Issue Date: | 2-May-2007 |
Publisher: | American Physical Society |
Abstract: | We present measurements of C P -violating asymmetries in the decay B 0 → a ± 1 ( 1260 ) π ∓ with a ± 1 ( 1260 ) → π ∓ π ± π ± . The data sample corresponds to 384 × 10 6 B ¯¯¯ B pairs collected with the BABAR detector at the PEP-II asymmetric B factory at SLAC. We measure the C P -violating asymmetry A a 1 π C P = − 0.07 ± 0.07 ± 0.02 , the mixing-induced C P violation parameter S a 1 π = 0.37 ± 0.21 ± 0.07 , the direct C P violation parameter C a 1 π = − 0.10 ± 0.15 ± 0.09 , and the parameters Δ C a 1 π = 0.26 ± 0.15 ± 0.07 and Δ S a 1 π = − 0.14 ± 0.21 ± 0.06 . From these measured quantities we determine the angle α eff = 78.6 ° ± 7.3 ° . |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.98.181803 |
It is part of: | Physical Review Letters, 2007, vol. 98, num. 18, p. 181803 |
URI: | http://hdl.handle.net/2445/131433 |
Related resource: | https://doi.org/10.1103/PhysRevLett.98.181803 |
ISSN: | 0031-9007 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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