Study of charmonium and charmonium-like contributions in B+ → J/ψηK+ decays
A study of B+ → J/ψηK+ decays, followed by J/ψ → μ+μ− and η → γγ, is performed using a dataset collected with the LHCb detector in proton-proton collisions at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to an integrated luminosity of 9 fb−1. The J/ψη mass spectrum is investigated for c...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
April 8, 2022
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| In: |
Journal of high energy physics
Year: 2022, Heft: 4, Pages: 1-29 |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP04(2022)046 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/JHEP04(2022)046
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| Verfasserangaben: | $hR. Aaij et al. (LHCb Collaboration) |
MARC
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| 245 | 1 | 0 | |a Study of charmonium and charmonium-like contributions in B+ → J/ψηK+ decays |c $hR. Aaij et al. (LHCb Collaboration) |
| 246 | 3 | 3 | |a Study of charmonium and charmonium-like contributions in B plus → J/psi eta K plus decays |
| 264 | 1 | |c April 8, 2022 | |
| 300 | |a 29 | ||
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| 500 | |a R. Aaij, F. Archilli, S. Bachmann, D. Berninghoff, M. Borsato, G. Frau, J.P. Grabowski, P.A. Günther, X. Han, S. Hansmann-Menzemer, J. Hu, R. Kopecna, B. Leverington, P. Li, J. Marks, D.J. Unverzagt, U. Uwer, C. Wang, L. Witola, A. Zhelezov (LHCb Collaboration) [und weitere Personen] | ||
| 500 | |a Im Titel ist das Plus-Zeichen hochgestellt | ||
| 500 | |a Gesehen am 18.05.2022 | ||
| 520 | |a A study of B+ → J/ψηK+ decays, followed by J/ψ → μ+μ− and η → γγ, is performed using a dataset collected with the LHCb detector in proton-proton collisions at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to an integrated luminosity of 9 fb−1. The J/ψη mass spectrum is investigated for contributions from charmonia and charmonium-like states. Evidence is found for the B+ → (ψ2(3823) → J/ψη)K+ and B+ → (ψ(4040) → J/ψη)K+ decays with significance of 3.4 and 4.7 standard deviations, respectively. This constitutes the first evidence for the ψ2(3823) → J/ψη decay. | ||
| 650 | 4 | |a B Physics | |
| 650 | 4 | |a Branching fraction | |
| 650 | 4 | |a Hadron-Hadron Scattering | |
| 650 | 4 | |a Quarkonium | |
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