The time-dependent CP-violating (CPV) asymmetries in B0 → KS0π0 decays based on 124×10 6 υ(4S) → BB̄ decays are measured. The asymmetries are collected with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC. The magnitudes of the direct CPV asymmetry and of the CPV asymmetry in the interference between mixing and decay are obtained in a sample containing 122 ± 16 signal decays. It is found that the first error is statistical in nature while the second is systematic.

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J., Hicheur, A., et al. (2004). Measurements of CP-Violating Asymmetries in B0→ K s0π0 Decays. PHYSICAL REVIEW LETTERS, 93(13), 1-7 [10.1103/PhysRevLett.93.131805].

Measurements of CP-Violating Asymmetries in B0→ K s0π0 Decays

CARPINELLI, Massimo;
2004

Abstract

The time-dependent CP-violating (CPV) asymmetries in B0 → KS0π0 decays based on 124×10 6 υ(4S) → BB̄ decays are measured. The asymmetries are collected with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC. The magnitudes of the direct CPV asymmetry and of the CPV asymmetry in the interference between mixing and decay are obtained in a sample containing 122 ± 16 signal decays. It is found that the first error is statistical in nature while the second is systematic.
Articolo in rivista - Articolo scientifico
Computational methods; Detectors; Magnets; Matrix algebra; Parameter estimation; Photons; Probability density function; Sampling; Asymmetries; Electromagnetic calorimeters (EMC); Radiative loop; Signal decays; High energy physics;
English
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B. Aubert et al. (BABAR Collaboration)
Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J., Hicheur, A., et al. (2004). Measurements of CP-Violating Asymmetries in B0→ K s0π0 Decays. PHYSICAL REVIEW LETTERS, 93(13), 1-7 [10.1103/PhysRevLett.93.131805].
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