English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Search for violations of Lorentz invariance and CPT symmetry in B0(s) mixing

MPS-Authors
/persons/resource/persons191744

Aquines Gutierrez,  O.
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons30313

Blouw,  Johan
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons30339

Britsch,  Markward
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons37734

Fontana,  Marianna
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons37740

Popov,  Dmitry
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons30992

Schmelling,  Michael
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons31206

Zavertyaev,  Mikhail
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;

External Resource
No external resources are shared
Fulltext (public)

1603.04804.pdf
(Preprint), 537KB

Supplementary Material (public)
There is no public supplementary material available
Citation

LHCb Collaboration, Aaij, R., Abellán Beteta, C., Adeva, B., Adinolfi, M., Ajaltouni, Z., et al. (2016). Search for violations of Lorentz invariance and CPT symmetry in B0(s) mixing. Physical Review Letters, 116(24): 241601. doi:10.1103/PhysRevLett.116.241601.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002B-2070-1
Abstract
Violations of $ CPT$ symmetry and Lorentz invariance are searched for by studying interference effects in $ B^0$ mixing and in $ B^0_s$ mixing. Samples of $ B^0\to J/\psi K^0_{\mathrm{S}}$ and $ B^0_s\to J/\psi K^+ K^-$ decays are recorded by the LHCb detector in proton--proton collisions at centre-of-mass energies of 7 and 8 TeV, corresponding to an integrated luminosity of 3 fb$^{-1}$. No periodic variations of the particle-antiparticle mass differences are found, consistent with Lorentz invariance and $ CPT$ symmetry. Results are expressed in terms of the Standard Model Extension parameter $\Delta a_{\mu}$ with precisions of $ \mathcal{O}(10^{-15})$ and $ \mathcal{O}(10^{-14})$ GeV for the $ B^0$ and $ B^0_s$ systems, respectively. With no assumption on Lorentz (non-)invariance, the $ CPT$-violating parameter $z$ in the $ B^0_s$ system is measured for the first time and found to be $ \mathcal{R}e(z) = -0.022 \pm 0.033 \pm 0.005$ and $ \mathcal{I}m(z) = 0.004 \pm 0.011\pm 0.002$, where the first uncertainties are statistical and the second systematic.