Search for CPT and Lorentz Violation in B{sup 0}-B{sup 0} Oscillations with Dilepton Events

Journal Article · Fri Apr 04 00:00:00 EDT 2008 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.100.131802· OSTI ID:21123804

Aubert, B; Bona, M; Boutigny, D; Karyotakis, Y; Lees, J P; Poireau, V; Prudent, X; Tisserand, V; Zghiche, A ^[1]; Garra Tico, J; 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 ^[5]

---

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. Universita di Bari, Dipartimento di Fisica and INFN, 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 report results of a search for CPT and Lorentz violation in B{sup 0}-B{sup 0} oscillations using inclusive dilepton events from 232x10{sup 6} {upsilon}(4S){yields}BB decays recorded by the BABAR detector at the PEP-II B Factory at SLAC. We find 2.8{sigma} significance, compatible with no signal, for variations in the complex CPT violation parameter z at the Earth's sidereal frequency and extract values for the quantities {delta}a{sub {mu}} in the general Lorentz-violating standard-model extension. The spectral powers for variations in z over the frequency range 0.26 yr{sup -1} to 2.1 solar day{sup -1} are also compatible with no signal.

• OSTI ID: 21123804
• Journal Information: Physical Review Letters, Vol. 100, Issue 13; Other Information: DOI: 10.1103/PhysRevLett.100.131802; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B NEUTRAL MESONS
CPT THEOREM
LORENTZ INVARIANCE
MESON FACTORIES
OSCILLATIONS
PARTICLE DECAY
STANDARD MODEL
STANFORD LINEAR ACCELERATOR CENTER