Search for Violation of $CPT$ and Lorentz Invariance in $${B_s^0}$$ Meson Oscillations

Journal Article · Fri Jun 12 00:00:00 UTC 2015 · Physical Review Letters

DOI: https://doi.org/10.1103/PhysRevLett.115.161601 · OSTI ID:1212680

Abazov, Victor Mukhamedovich ^[1]

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1. et al.

We present the first search for CPT-violating effects in the mixing of B⁰_s 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 B⁰_s → µ^±D^±_s 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 CPTand Lorentz-invariance violating coupling coefficients. We find 95% confidence intervals of Δa⊥ < 1.2 × 10^-12 GeV and (-0.8 < ΔaT - 0.396Δa_Z < 3.9) × 10^-13 GeV.

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE; USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
• Contributing Organization: D0 Collaboration
• Grant/Contract Number: AC02-07CH11359
• OSTI ID: 1212680
• Report Number(s): FERMILAB-PUB--15-258-E; arXiv eprint number arXiv:1506.04123
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 16 Vol. 115; ISSN 0031-9007; ISSN PRLTAO
• Publisher: American Physical Society (APS)Copyright Statement
• Country of Publication: United States
• Language: English