English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Measurement of the branching fraction of B0 → J/ψπ0 decays

MPS-Authors
/persons/resource/persons30992

Schmelling,  M.       
Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons31206

Zavertyaev,  M.       
Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society;

Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

LHCb Collaboration, Aaij, R., Abdelmotteleb, A. S. W., Abellan Beteta, C., Abudinén, F., Ackernley, T., et al. (2024). Measurement of the branching fraction of B0 → J/ψπ0 decays. Journal of High Energy Physics, 2024(5): 65. doi:10.1007/JHEP05(2024)065.


Cite as: https://hdl.handle.net/21.11116/0000-000F-4D3A-B
Abstract
The ratio of branching fractions between B0 → J/ψπ0 and B+ → J/ψK∗+ decays is measured with proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb−1. The measured value is

BB0→J/ψπ0 / BB+→J/ψK∗+ = (1.153 ± 0.053 ± 0.048) × 10−2,

where the first uncertainty is statistical and the second is systematic. The branching fraction for B0 → J/ψπ0 decays is determined using the branching fraction of the normalisation channel, resulting in

BB0→J/ψπ0 = (1.670 ± 0.077 ± 0.069 ± 0.095) × 10−5,

where the last uncertainty corresponds to that of the external input. This result is consistent with the current world average value and competitive with the most precise single measurement to date.