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http://hdl.handle.net/2445/138498
Title: | Search for CPT and Lorentz Violation in B0−¯¯¯B0 Oscillations with Dilepton Events |
Author: | Garra Ticó, Jordi Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 4-Apr-2008 |
Publisher: | American Physical Society |
Abstract: | We report results of a search for C P T and Lorentz violation in B 0 − ¯¯¯ B 0 oscillations using inclusive dilepton events from 232 × 10 6 Υ ( 4 S ) → B ¯¯¯ B decays recorded by the BABAR detector at the PEP-II B Factory at SLAC. We find 2.8 σ significance, compatible with no signal, for variations in the complex C P T violation parameter z at the Earth's sidereal frequency and extract values for the quantities Δ a μ 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 da y − 1 are also compatible with no signal. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.100.131802 |
It is part of: | Physical Review Letters, 2008, vol. 100, num. 13, p. 131802 |
URI: | http://hdl.handle.net/2445/138498 |
Related resource: | https://doi.org/10.1103/PhysRevLett.100.131802 |
ISSN: | 0031-9007 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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