Details

Autor(en) / Beteiligte

• 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.

Titel

Search for Violation of $CPT$ and Lorentz invariance in ${B_s^0}$ meson oscillations

Ist Teil von

• Physical review letters, 2015-06, Vol.115 (16)

Ort / Verlag

United States: American Physical Society

Erscheinungsjahr

2015

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• We 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 $(-0.8 < \Delta a_T - 0.396 \Delta a_Z < 3.9) \times 10^{-13}$ GeV.