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Time-dependent Dalitz plot analysis of B-0 ->(DK0)-K--/+pi(+/-) decays

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BABAR Collaboration (Including: Harrison, P. F., Ilić, Jelena, Latham, Thomas and Mohanty, G. B.). (2008) Time-dependent Dalitz plot analysis of B-0 ->(DK0)-K--/+pi(+/-) decays. Physical Review D (Particles, Fields, Gravitation and Cosmology), Vol.77 (No.7). ISSN 1550-7998

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Official URL: http://dx.doi.org/10.1103/PhysRevD.77.071102

Abstract

We present for the first time a measurement of the weak phase 2 beta+gamma obtained from a time-dependent Dalitz plot analysis of B-0 ->(DK0)-K--/+pi(+/-) decays. Using a sample of approximately 347x10(6) B (B) over bar pairs collected by the BABAR detector at the PEP-II asymmetric-energy storage rings and assuming the ratio r of the b -> u and b -> c decay amplitudes to be 0.3, we obtain 2 beta+gamma=(83 +/- 53 +/- 20)degrees and the equivalent solution at +180 degrees. The magnitudes and phases for the resonances associated with the b -> c transitions are also extracted from the fit.

Item Type:

Journal Article

Subjects:

Q Science > QC Physics

Divisions:

Faculty of Science > Physics

Library of Congress Subject Headings (LCSH):

Radioactive decay, Gaussian processes

Journal or Publication Title:

Physical Review D (Particles, Fields, Gravitation and Cosmology)

Publisher:

American Physical Society