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

Abstract

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.

9 pages, 5 figures, published in Phys. Rev. Lett

References in corpus (4)

• Big-Bang Nucleosynthesis
• CPT violation and B-meson oscillations
• Search for Violation of $CPT$ and Lorentz invariance in $B_s^0$ meson oscillations
• Measurement of the $B_s^0$ lifetime in the flavor-specific decay channel $B_s^0\to D_s^{-}{\mu }^{+}\nu X$

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• Testing CPT violation with correlated neutral mesons
• Quark-sector Lorentz violation in $Z$-boson production
• Searches for violation of Lorentz invariance in top quark pair production using dilepton events in 13 TeV proton-proton collisions
• The KLOE-2 experiment: overview of recent results