Search for violation of CPT and Lorentz invariance in B.sup.0./sup..sub.s./sub. meson oscillations

0451982 - FZÚ 2016 RIV US eng J - Článek v odborném periodiku
Abazov, V. M. - Abbott, B. - Acharya, B.S. - Kupčo, Alexander - Lokajíček, Miloš … celkem 367 autorů
Search for violation of CPT and Lorentz invariance in B⁰_s meson oscillations.
Physical Review Letters. Roč. 115, č. 16 (2015), "161601-1"-"161601-8". ISSN 0031-9007. E-ISSN 1079-7114
Institucionální podpora: RVO:68378271
Klíčová slova: Batavia TEVATRON Coll * DZERO * asymmetry * anti-p p * scattering * B/s0 anti-B/s0: mixing * CPT * violation * experimental results
Kód oboru RIV: BF - Elementární částice a fyzika vys. energií
Impakt faktor: 7.645, rok: 2015

We present the first search for CPT-violating effects in the mixing of Bs0 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 Bs0→μ±Ds± 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 Δa⊥<1.2×10-12  GeV and (-0.8<ΔaT-0.396ΔaZ<3.9)×10-13  GeV.
Trvalý link: http://hdl.handle.net/11104/0253028