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Search for CPT and Lorentz Violation in B0-B¯0 Oscillations with Dilepton Events

Aubert, B. et al. (2008) Search for CPT and Lorentz Violation in B0-B¯0 Oscillations with Dilepton Events. Physical Review Letters, 100 (13). p. 131802. ISSN 0031-9007

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Abstract

We report results of a search for CPT and Lorentz violation in B0-B̅ 0 oscillations using inclusive dilepton events from 232×106 Υ(4S)→BB̅ 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 0.26 yr-1 to 2.1 solar day-1 are also compatible with no signal.

Item Type: Article
Subjects: Q Science > QC Physics
Schools: School of Applied Sciences
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Depositing User: Sharon Beastall
Date Deposited: 04 Jan 2012 08:42
Last Modified: 04 Jan 2012 08:42
URI: http://eprints.hud.ac.uk/id/eprint/12291

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