Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/130846
Title: B0 meson decays to ρ0K*0,f0K*0, and ρ−K*+, including higher K* resonances
Author: Garra Ticó, Jordi
Graugés Pous, Eugeni
BABAR Collaboration
Keywords: Física de partícules
Experiments
Mesons (Física nuclear)
Particle physics
Experiments
Mesons (Nuclear physics)
Issue Date: 27-Apr-2012
Publisher: American Physical Society
Abstract: We present branching fraction measurements for the decays B 0 → ρ 0 K * 0 , B 0 → f 0 K * 0 , and B 0 → ρ − K * + , where K ∗ is an S -wave ( K π ) ∗ 0 or a K ∗ ( 892 ) meson; we also measure B 0 → f 0 K ∗ 2 ( 1430 ) 0 . For the K ∗ ( 892 ) channels, we report measurements of longitudinal polarization fractions (for ρ final states) and direct C P violation asymmetries. These results are obtained from a sample of ( 471.0 ± 2.8 ) × 10 6 B ¯¯¯ B pairs collected with the BABAR detector at the PEP-II asymmetric-energy e + e − collider at the SLAC National Accelerator Laboratory. We observe ρ 0 K ∗ ( 892 ) 0 , ρ 0 ( K π ) * 0 0 , f 0 K ∗ ( 892 ) 0 , and ρ − K ∗ ( 892 ) + with greater than 5 σ significance, including systematics. We report first evidence for f 0 ( K π ) * 0 0 and f 0 K ∗ 2 ( 1430 ) 0 , and place an upper limit on ρ − ( K π ) * + 0 . Our results in the K ∗ ( 892 ) channels are consistent with no direct C P violation.
Note: Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.85.072005
It is part of: Physical Review D, 2012, vol. 85, num. 7, p. 072005
URI: http://hdl.handle.net/2445/130846
Related resource: https://doi.org/10.1103/PhysRevD.85.072005
ISSN: 1550-7998
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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