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Search for CPT and lorentz violation in B0-B[over ]0 oscillations with dilepton events |
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| Authors: | Aubert B Bona M Boutigny D Karyotakis Y Lees J P Poireau V Prudent X Tisserand V Zghiche A Garra Tico J Grauges E Lopez L Palano A Pappagallo M Eigen G Stugu B Sun L Abrams G S Battaglia M Brown D N Button-Shafer J Cahn R N Groysman Y Jacobsen R G Kadyk J A Kerth L T Kolomensky Yu G Kukartsev G Lopes Pegna D Lynch G Mir L M Orimoto T J Osipenkov I L Ronan M T Tackmann K Tanabe T Wenzel W A Del Amo Sanchez P Hawkes C M Watson A T Koch H Schroeder T Walker D Asgeirsson D J Cuhadar-Donszelmann T Fulsom B G Hearty C Mattison T S McKenna J A Barrett M Khan A Saleem M Teodorescu L Blinov V E |
| Institution: | Laboratoire de Physique des Particules, IN2P3/CNRS et Université de Savoie, F-74941 Annecy-Le-Vieux, France. |
| Abstract: | We report results of a search for CPT and Lorentz violation in B(0)-Bover ](0) oscillations using inclusive dilepton events from 232 x 10(6) Upsilon(4S)-->BBover ] decays recorded by the BABAR detector at the PEP-II B Factory at SLAC. We find 2.8sigma 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 Deltaa(micro) in the general Lorentz-violating standard-model extension. The spectral powers for variations in z over the frequency range 0.26 yr(-1) to 2.1 solar day(-1) are also compatible with no signal. |
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