Measurement of D{sup 0}-D{sup 0} Mixing from a Time-Dependent Amplitude Analysis of D{sup 0}->K{sup +}pi{sup -}pi{sup 0} Decays

Journal Article · Fri Nov 20 04:00:00 EST 2009 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.103.211801· OSTI ID:21370847

Aubert, B; Bona, M; Karyotakis, Y; Lees, J P; Poireau, V; Prencipe, E; Prudent, X; Tisserand, V ^[1]; Tico, J Garra; 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; Cahn, R N ^[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. INFN Sezione di Bari, 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 evidence of D{sup 0}-D{sup 0} mixing using a time-dependent amplitude analysis of the decay D{sup 0}->K{sup +}pi{sup -}pi{sup 0} in a data sample of 384 fb{sup -1} collected with the BABAR detector at the PEP-II e{sup +}e{sup -} collider at the Stanford Linear Accelerator Center. Assuming CP conservation, we measure the mixing parameters x{sub Kpi}{sub pi{sup 0'}}=[2.61{sub -0.68}{sup +0.57}(stat)+-0.39(syst)]%, y{sub Kpi}{sub pi{sup 0'}}=[-0.06{sub -0.64}{sup +0.55}(stat)+-0.34(syst)]%. This result is inconsistent with the no-mixing hypothesis with a significance of 3.2 standard deviations. We find no evidence of CP violation in mixing.

• OSTI ID: 21370847
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 21 Vol. 103; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
CHARM PARTICLES
CHARMED MESONS
CP INVARIANCE
D MESONS
D NEUTRAL MESONS
DECAY
ELEMENTARY PARTICLES
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
INVARIANCE PRINCIPLES
KAONS
KAONS PLUS
MESON-MESON INTERACTIONS
MESONS
NATIONAL ORGANIZATIONS
PAIR PRODUCTION
PARTICLE DECAY
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PIONS
PIONS MINUS
PIONS NEUTRAL
PSEUDOSCALAR MESONS
STANFORD LINEAR ACCELERATOR CENTER
STRANGE MESONS
STRANGE PARTICLES
TIME DEPENDENCE
US DOE
US ERDA
US ORGANIZATIONS