Measurements of CP-Violating Asymmetries in the Decay B{sup 0}{yields}K{sup +}K{sup -}K{sup 0}

Journal Article · Fri Oct 19 04:00:00 EDT 2007 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.99.161802· OSTI ID:21024312

Aubert, B; Bona, M; Boutigny, D; Karyotakis, Y; Lees, J P; Poireau, V; Prudent, X; Tisserand, V; Zghiche, A ^[1]; Tico, J Garra; Grauges, E ^[2]; Lopez, L; Palano, A ^[3]; Eigen, G; Stugu, B; Sun, L ^[4]; Abrams, G S; Battaglia, M; Brown, D N; Button-Shafer, J ^[5]

---

1. Laboratoire de Physique des Particules, IN2P3/CNRS et Universite de Savoie, F-74941 Annecy-Le-Vieux (France)
2. Facultat de Fisica, Departament ECM, Universitat de Barcelona, E-08028 Barcelona (Spain)
3. Dipartimento di Fisica and INFN, Universita di Bari, I-70126 Bari (Italy)
4. Institute of Physics, University of Bergen, N-5007 Bergen (Norway)
5. Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720 (United States)

We analyze the decay B{sup 0}{yields}K{sup +}K{sup -}K{sup 0} using 383x10{sup 6} BB events collected by the BABAR detector at SLAC to extract CP violation parameter values over the Dalitz plot. Combining all K{sup +}K{sup -}K{sup 0} events, we find A{sub CP}=-0.015{+-}0.077{+-}0.053 and {beta}{sub eff}=0.352{+-}0.076{+-}0.026 rad, corresponding to a CP violation significance of 4.8{sigma}. A second solution near {pi}/2-{beta}{sub eff} is disfavored with a significance of 4.5{sigma}. We also report A{sub CP} and {beta}{sub eff} separately for decays to {phi}(1020)K{sup 0}, f{sub 0}(980)K{sup 0}, and K{sup +}K{sup -}K{sup 0} with m{sub K{sup +}}{sub K{sup -}}>1.1 GeV/c{sup 2}.

• OSTI ID: 21024312
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 16 Vol. 99; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
B NEUTRAL MESONS
CP INVARIANCE
DALITZ PLOT
F0-980 MESONS
KAONS MINUS
KAONS NEUTRAL
KAONS PLUS
PAIR PRODUCTION
PARTICLE DECAY
PHI-1020 MESONS
STANFORD LINEAR ACCELERATOR CENTER