Study of B+ c meson decays to charmonia plus multihadron final states
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13130_2023_Article_21410.pdf
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Author(s)
Aaij, R.
Abdelmotteleb, A. S. W.
Abellan Beteta, C.
Abudinén, F.
Ackernley, T.
Adeva, B.
Adinolfi, M.
Adlarson, P.
Afsharnia, H.
Agapopoulou, C.
Date Issued
July 26, 2023
Publisher
Springer Berlin Heidelberg
Citation
Journal of High Energy Physics. 2023 Jul 26;2023(7):198
Version
Final published version
Abstract
Abstract
Four decay modes of the
B
c
+
$$ {B}_c^{+} $$
meson into a J/ψ meson and multiple charged kaons or pions are studied using proton-proton collision data, collected with the LHCb detector at centre-of-mass energies of 7, 8, and 13 TeV and corresponding to an integrated luminosity of 9 fb−1. The decay
B
c
+
$$ {B}_c^{+} $$
→ J/ψK+K−π+π+π− is observed for the first time, and evidence for the
B
c
+
$$ {B}_c^{+} $$
→ J/ψ4π+3π− decay is found. The decay
B
c
+
$$ {B}_c^{+} $$
→ J/ψ3π+2π− is observed and the previous observation of the
B
c
+
$$ {B}_c^{+} $$
→ ψ(2S)π+π+π− decay is confirmed using the ψ(2S) → J/ψπ+π− decay mode. Ratios of the branching fractions of these four
B
c
+
$$ {B}_c^{+} $$
decay channels are measured.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
https://doi.org/10.1007/JHEP07(2023)198
