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http://hdl.handle.net/2445/131454
Title: | Measurement of CP asymmetry in B0 → K0sπ0π0 decays |
Author: | Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 5-Oct-2007 |
Publisher: | American Physical Society |
Abstract: | We present a measurement of the time-dependent C P asymmetry for the neutral B -meson decay into the C P = + 1 final state K 0 S π 0 π 0 , with K 0 S → π + π − . We use a sample of approximately 227 million B -meson pairs recorded at the Υ ( 4 S ) resonance with the BABAR detector at the PEP-II B -Factory at SLAC. From an unbinned maximum likelihood fit, we extract the mixing-induced C P -violation parameter S = 0.72 ± 0.71 ± 0.08 and the direct C P -violation parameter C = 0.23 ± 0.52 ± 0.13 , where the first uncertainty is statistical and the second systematic. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.76.071101 |
It is part of: | Physical Review D, 2007, vol. 76, num. 7, p. 071101(R) |
URI: | http://hdl.handle.net/2445/131454 |
Related resource: | https://doi.org/10.1103/PhysRevD.76.071101 |
ISSN: | 1550-7998 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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558209.pdf | 243.81 kB | Adobe PDF | View/Open |
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