Please use this identifier to cite or link to this item: 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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