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Study of Bc+ meson decays to charmonia plus multihadron final states
A bstract Four decay modes of the 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...
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Published in: | The journal of high energy physics 2023-07, Vol.2023 (7), p.198 |
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Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Online Access: | Get full text |
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Summary: | A
bstract
Four decay modes of the
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
+
→ J/ψK
+
K
−
π
+
π
+
π
−
is observed for the first time, and evidence for the
B
c
+
→ J/ψ
4
π
+
3
π
−
decay is found. The decay
B
c
+
→ J/ψ
3
π
+
2
π
−
is observed and the previous observation of the
B
c
+
→ ψ
(2
S
)
π
+
π
+
π
−
decay is confirmed using the
ψ
(2
S
) →
J/ψπ
+
π
−
decay mode. Ratios of the branching fractions of these four
B
c
+
decay channels are measured. |
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ISSN: | 1029-8479 |
DOI: | 10.1007/JHEP07(2023)198 |