Observation of new charmonium(-like) states in decays
R Aaij, ASW Abdelmotteleb, CA Beteta… - arXiv preprint arXiv …, 2024 - arxiv.org
R Aaij, ASW Abdelmotteleb, CA Beteta, F Abudinén, T Ackernley, AA Adefisoye, B Adeva…
arXiv preprint arXiv:2406.03156, 2024•arxiv.orgA study of resonant structures in $ B^{+}\rightarrow {D^{\ast+} D^{-} K^{+}} $ and $
B^{+}\rightarrow {D^{\ast-} D^{+} K^{+}} $ decays is performed, using proton-proton collision
data at centre-of-mass energies of $\sqrt {s}= 7, 8$, and $13 $ TeV recorded by the LHCb
experiment, corresponding to an integrated luminosity of 9 fb $^{-1} $. A simultaneous
amplitude fit is performed to the two channels with contributions from resonances decaying
to $ D^{\ast-} D^{+} $ and $ D^{\ast+} D^{-} $ states linked by $ C $ parity. This procedure …
B^{+}\rightarrow {D^{\ast-} D^{+} K^{+}} $ decays is performed, using proton-proton collision
data at centre-of-mass energies of $\sqrt {s}= 7, 8$, and $13 $ TeV recorded by the LHCb
experiment, corresponding to an integrated luminosity of 9 fb $^{-1} $. A simultaneous
amplitude fit is performed to the two channels with contributions from resonances decaying
to $ D^{\ast-} D^{+} $ and $ D^{\ast+} D^{-} $ states linked by $ C $ parity. This procedure …
A study of resonant structures in and decays is performed, using proton-proton collision data at centre-of-mass energies of , and TeV recorded by the LHCb experiment, corresponding to an integrated luminosity of 9 fb. A simultaneous amplitude fit is performed to the two channels with contributions from resonances decaying to and states linked by parity. This procedure allows the -parities of resonances in the mass spectra to be determined. Four charmonium(-like) states are observed decaying into : , , and , with quantum numbers equal to , , and , respectively. At least three of these states have not been observed previously. In addition, the existence of the and resonances in the mass spectrum, already observed in the decay, is confirmed in a different production channel.
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