Amb motiu del tancament d'estiu, la validació de documents es reprendrà a partir del 28 d'agost de 2026. Disculpeu les molèsties.
Con motivo del cierre de verano, la validación de documentos se reanudará a partir del 28 de agosto de 2026. Disculpad las molestias
Due to the summer closure, document validation will resume starting August 28, 2026. We apologize for any inconvenience.

Files

577701.pdf (218.62 KB)

Document type

Article

Version

Published version

Publication date

2008-04-04

All rights reserved

Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/138498

Search for CPT and Lorentz Violation in B0−¯¯¯B0 Oscillations with Dilepton Events

Journal Title

Authors

Director/Tutor

Journal ISSN

Volume Title

Related resource

https://doi.org/10.1103/PhysRevLett.100.131802

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.

Subject

Física de partícules, Experiments

Subject (English)

Particle physics, Experiments

Citation

Collections

Articles publicats en revistes (Física Quàntica i Astrofísica)

Citation

GARRA TICÓ, Jordi, GRAUGÉS POUS, Eugeni and BABAR Collaboration. Search for CPT and Lorentz Violation in B0−¯¯¯B0 Oscillations with Dilepton Events. Physical Review Letters. 2008. Vol. 100, num. 13, pags. 131802. ISSN 0031-9007. [consulted: 18 of August of 2026]. Available at: https://hdl.handle.net/2445/138498

Export metadata

JSON - METS

Share record