Dalitz Plot Analysis of the Decay B0(B0bar) to K^+/- pi^-/+ pi0
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
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 |
Similar Records
Dalitz plot analysis of the decay
Measurements of the Branching Fraction and Time-Dependent CP Asymmetries of B0 to J/Psi pi0 Decays.