We analyze 230.4fb-1 of data collected with the BABAR detector at the PEP-II e+e- collider at SLAC to search for evidence of D0-D̄0 mixing using regions of phase space in the decay D0→K+π-π0. We measure the time-integrated mixing rate RM=(0.023-0.014+0.018(stat.)±0.004(syst.))%, and RM<0.054% at the 95% confidence level, assuming CP invariance. The data are consistent with no mixing at the 4.5% confidence level. We also measure the branching ratio for D0→K+π-π0 relative to D0→K-π+π0 to be (0.214±0.008(stat.)±0.008(syst.))%.

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., et al. (2006). Search for D0-D̄0 mixing and branching-ratio measurement in the decay D0→K+π-π0. PHYSICAL REVIEW LETTERS, 97(22) [10.1103/PhysRevLett.97.221803].

Search for D0-D̄0 mixing and branching-ratio measurement in the decay D0→K+π-π0

Carpinelli M.;
2006

Abstract

We analyze 230.4fb-1 of data collected with the BABAR detector at the PEP-II e+e- collider at SLAC to search for evidence of D0-D̄0 mixing using regions of phase space in the decay D0→K+π-π0. We measure the time-integrated mixing rate RM=(0.023-0.014+0.018(stat.)±0.004(syst.))%, and RM<0.054% at the 95% confidence level, assuming CP invariance. The data are consistent with no mixing at the 4.5% confidence level. We also measure the branching ratio for D0→K+π-π0 relative to D0→K-π+π0 to be (0.214±0.008(stat.)±0.008(syst.))%.
Articolo in rivista - Articolo scientifico
BABAR detector
English
2006
B. Aubert et al. (BABAR Collaboration)
Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., et al. (2006). Search for D0-D̄0 mixing and branching-ratio measurement in the decay D0→K+π-π0. PHYSICAL REVIEW LETTERS, 97(22) [10.1103/PhysRevLett.97.221803].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/389796
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