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https://hdl.handle.net/2445/222021| Title: | Observation of the B+ → Jψη0K+ decay |
| Author: | Garcia Moreno, Paula Garrido Beltrán, Lluís Gironella Gironell, Pere Gomez Fernandez, Sergio Graugés Pous, Eugeni Lobo Salvia, Aniol López Huertas, Albert Manera Escalero, Rafel Marin Benito, Carla Mauricio Ferre, Joan Alfonso Albero, Alejandro Vazquez Gomez, Ricardo LHCb Collaboration |
| Keywords: | Física de partícules Hadrons Particle physics Hadrons |
| Issue Date: | 2023 |
| Publisher: | Springer Verlag |
| Abstract: | Abstract: The B+ → Jψη0K+ decay is observed for the first time using proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of 7, 8, and 13 TeV, corresponding to a total integrated luminosity of 9 fb−1 . The branching fraction of this decay is measured relative to the known branching fraction of the B+ → ψ(2S)K+ decay and found to be B(B+ → Jψη0K+) B(B+ → ψ(2S)K+) = (4.91 ± 0.47 ± 0.29 ± 0.07) × 10−2 , where the first uncertainty is statistical, the second is systematic and the third is related to external branching fractions. A first look at the J/ψη0 mass distribution is performed and no signal of intermediate resonances is observed. |
| Note: | Reproducció del document publicat a: https://doi.org/10.1007/JHEP08(2023)174 |
| It is part of: | Journal of High Energy Physics, 2023, vol. 2023, num.174 |
| URI: | https://hdl.handle.net/2445/222021 |
| Related resource: | https://doi.org/10.1007/JHEP08(2023)174 |
| ISSN: | 1126-6708 |
| Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) |
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