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Title: Dalitz Plot Analysis of the Decay B0(B0bar) to K^+/- pi^-/+ pi0

Journal Article · · Physical Review. D, Particles, Fields, Gravitation and Cosmology

The authors 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) x 10{sup 6}{Upsilon}(4S) {yields} B{bar B} decays collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC, they measure the magnitudes and phases of the intermediate resonant and nonresonant amplitudes for B{sup 0} and {bar 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 {Beta}(B{sup 0} {yields} K{sup +}{pi}{sup -}{pi}{sup 0}) = (35.7{sub -1.5}{sup +2.6} {+-} 2.2) x 10{sup -6}, and {Alpha}{sub CP} = -0.030{sub -0.051}{sup +0.045} {+-} 0.055 where the first errors are statistical and the second systematic. They observe the decay B{sup 0} {yields} K*{sup 0}(892){pi}{sup 0} with the branching fraction {Beta}(B{sup 0} {yields} K*{sup 0}(892){pi}{sup 0}) = (3.6{sub -0.8}{sup +0.7} {+-} 0.4) x 10{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} {bar D}{sup 0}{pi}{sup 0} decays where {bar D}{sup 0} {yields} K{sup +}{pi}{sup -}, and they measure {Beta}(B{sup 0} {yields} {bar D}{sup 0}{pi}{sup 0}) = (2.93 {+-} 0.17 {+-} 0.18) x 10{sup -4}.

Research Organization:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-76SF00515
OSTI ID:
920603
Report Number(s):
SLAC-PUB-13023; arXiv:0711.4417; TRN: US0805330
Journal Information:
Physical Review. D, Particles, Fields, Gravitation and Cosmology, Vol. 78, Issue 5; ISSN 1550-7998
Country of Publication:
United States
Language:
English

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Cited By (4)

Unitary coupled-channels model for three-mesons decays of heavy mesons journal December 2011
Quasi-two-body decays B ( s ) → P f 2 ( 1270 ) → P π π in the perturbative QCD approach journal September 2018
Averages of b-hadron, c-hadron, and $$\tau $$ τ -lepton properties as of summer 2016 journal December 2017
Unitary coupled-channels model for three-mesons decays of heavy mesons text January 2011

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