Time-dependent Dalitz plot analysis of B{sup 0}{yields}D{sup {+-}}K{sup 0}{pi}{sup {+-}} decays

Journal Article · Tue Apr 01 04:00:00 EDT 2008 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.77.071102· OSTI ID:21249910

Aubert, B; Bona, M; Karyotakis, Y; Lees, J P; Poireau, V; Prudent, X; Tisserand, V; Zghiche, A ^[1]; Garra Tico, J; Grauges, E ^[2]; Lopez, L; Palano, A; Pappagallo, M ^[3]; Eigen, G; Stugu, B; Sun, L ^[4]; Abrams, G S; Battaglia, M; Brown, D N; Button-Shafer, J ^[5]

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1. Laboratoire de Physique des Particules, IN2P3/CNRS et Universite de Savoie, F-74941 Annecy-Le-Vieux (France)
2. Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona (Spain)
3. Universita di Bari, Dipartimento di Fisica and INFN, I-70126 Bari (Italy)
4. University of Bergen, Institute of Physics, N-5007 Bergen (Norway)
5. Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720 (United States)

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{sup 0}{yields}D{sup {+-}}K{sup 0}{pi}{sup {+-}} decays. Using a sample of approximately 347x10{sup 6} BB pairs collected by the BABAR detector at the PEP-II asymmetric-energy storage rings and assuming the ratio r of the b{yields}u and b{yields}c decay amplitudes to be 0.3, we obtain 2{beta}+{gamma}=(83{+-}53{+-}20) deg. and the equivalent solution at +180 deg. The magnitudes and phases for the resonances associated with the b{yields}c transitions are also extracted from the fit.

• OSTI ID: 21249910
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 7 Vol. 77; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
B NEUTRAL MESONS
DALITZ PLOT
DECAY AMPLITUDES
ENERGY STORAGE
KAONS NEUTRAL
MATHEMATICAL SOLUTIONS
PARTICLE DECAY
PHOSPHOENOLPYRUVATE
PIONS MINUS
PIONS PLUS
RESONANCE
RINGS
TIME DEPENDENCE