Search for Violation of $CPT$ and Lorentz invariance in ${B_s^0}$ meson oscillations
- Abazov, V.M.
- Bassler, U.
- Bernardi, G.
- Besançon, M.
- Brown, D.
- Chapon, E.
- Couderc, F.
- Deliot, F.
- Enari, Y.
- Faure, A.
- Greder, S.
- Grenier, G.
- Kurca, T.
- Lebrun, P.
- Lellouch, J.
- Miconi, F.
- Ripp-Baudot, I.
- Royon, C.
- Shary, V.
- Titov, M.
- Tuchming, B.
- Vilanova, D.
- Grivaz, J.-F.
- Guillemin, T.
- Jaffré, M.
- Pétroff, P.
- Sajot, G.
- Stark, J.
- Cousinou, M.-C.
- Duperrin, A.
- Geng, W.
- Kajfasz, E.
- Kermiche, S.
- Nagy, E.
- Osman, N.
DOIAbstract
8 pages, 3 figures ; see paper for full list of authorsInternational audienceWe present the first search for CPT-violating effects in the mixing of ${B_s^0}$ mesons using the full Run II data set with an integrated luminosity of 10.4 fb$^{-1}$ of proton-antiproton collisions collected using the D0 detector at the Fermilab Tevatron Collider. We measure the CPT-violating asymmetry in the decay $B_s^0 \to \mu^\pm D_s^\pm$ as a function of celestial direction and sidereal phase. We find no evidence for CPT-violating effects and place limits on the direction and magnitude of flavor-dependent CPT- and Lorentz-invariance violating coupling coefficients. We find 95\% confidence intervals of $\Delta a_{\perp} < 1.2 \times 10^{-12}$ GeV and $(-0.8 < ...
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