Dalitz plot analysis of the decay B{sup 0}(B{sup 0}){yields}K{sup {+-}}{pi}{sup {+-}}{pi}{sup 0}
- Laboratoire de Physique des Particules, IN2P3/CNRS et Universite de Savoie, F-74941 Annecy-Le-Vieux (France)
- Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona (Spain)
- Universita di Bari, Dipartimento di Fisica and INFN, I-70126 Bari (Italy)
- University of Bergen, Institute of Physics, N-5007 Bergen (Norway)
- Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720 (United States)
We report a Dalitz-plot analysis of the charmless hadronic decays of neutral B mesons to K{sup {+-}}{pi}{sup {+-}}{pi}{sup 0}. With a sample of (231.8{+-}2.6)x10{sup 6}{upsilon}(4S){yields}BB decays collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC, we measure the magnitudes and phases of the intermediate resonant and nonresonant amplitudes for B{sup 0} and B{sup 0} decays and determine the corresponding CP-averaged branching fractions and charge asymmetries. The inclusive branching fraction and CP-violating charge asymmetry are measured to be B(B{sup 0}{yields}K{sup +}{pi}{sup -}{pi}{sup 0})=(35.7{sub -1.5}{sup +2.6}{+-}2.2)x10{sup -6} and A{sub CP}=-0.030{sub -0.051}{sup +0.045}{+-}0.055 where the first errors are statistical and the second systematic. We observe the decay B{sup 0}{yields}K*{sup 0}(892){pi}{sup 0} with the branching fraction B(B{sup 0}{yields}K*{sup 0}(892){pi}{sup 0})=(3.6{sub -0.8}{sup +0.7}{+-}0.4)x10{sup -6}. This measurement differs from zero by 5.6 standard deviations (including the systematic uncertainties). The selected sample also contains B{sup 0}{yields}D{sup 0}{pi}{sup 0} decays where D{sup 0}{yields}K{sup +}{pi}{sup -}, and we measure B(B{sup 0}{yields}D{sup 0}{pi}{sup 0})=(2.93{+-}0.17{+-}0.18)x10{sup -4}.
- OSTI ID:
- 21250699
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 78, Issue 5; Other Information: DOI: 10.1103/PhysRevD.78.052005; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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