Search for Violation of CPT and Lorentz Invariance in $B^0_s$ Meson Oscillations using the D0 Detector

TL;DR

This paper searches for violations of CPT and Lorentz invariance in $B^0_s$ meson oscillations using data from the D0 detector, finding no evidence but setting limits on possible violations.

Contribution

It provides the first experimental limits on CPT and Lorentz invariance violation in $B^0_s$ meson mixing using sidereal phase analysis.

Findings

No evidence of CPT violation observed.

Limits set on CPT- and Lorentz-invariance violating coefficients.

Analysis constrains new physics beyond the Standard Model.

Abstract

A search is presented for CPT-violating effects in the mixing of $B^0_s$ mesons using the D0 detector at the Fermilab Tevatron Collider. The CPT-violating asymmetry in the decay $B^0_s \rightarrow \mu^{\pm} D_s^{\mp} X$ as a function of sidereal phase is measured. No evidence for CPT-violating effects is observed and limits are placed on CPT- and Lorentz-invariance violating coupling coefficients.