Search for CPT and Lorentz Violation in B0- Bmacr 0 Oscillations with Dilepton Events
Abstract
We report results of a search for CPT and Lorentz violation in B0- Bmacr 0 oscillations using inclusive dilepton events from 232×106 Υ(4S)→B Bmacr decays recorded by the BABAR detector at the PEP-II B Factory at SLAC. We find 2.8σ 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 Δaμ in the general Lorentz-violating standard-model extension. The spectral powers for variations in z over the frequency range 0.26yr-1 to 2.1solarday-1 are also compatible with no signal.
- Publication:
-
Physical Review Letters
- Pub Date:
- April 2008
- DOI:
- 10.1103/PhysRevLett.100.131802
- arXiv:
- arXiv:0711.2713
- Bibcode:
- 2008PhRvL.100m1802A
- Keywords:
-
- 13.25.Hw;
- 11.30.Cp;
- 11.30.Er;
- 12.15.Hh;
- Decays of bottom mesons;
- Lorentz and Poincare invariance;
- Charge conjugation parity time reversal and other discrete symmetries;
- Determination of Kobayashi-Maskawa matrix elements;
- High Energy Physics - Experiment
- E-Print:
- 7 pages, 3 postscript figures, submitted to Physical Review Letters