Study of h c → 3 ( π + π − ) π 0 , h c → 2 ( π + π − ) ω , h c → 2 ( π + π − ) π 0 η , h c → 2 ( π + π − ) η , and h c → p p ¯

Ablikim, M.; Achasov, M. N.; Adlarson, P.; Afedulidis, O.; Ai, X. C.; Aliberti, R.; Amoroso, A.; An, Q.; Bai, Y.; Bakina, O.; Balossino, I.; Ban, Y.; Bao, H. -R.; Batozskaya, V.; Begzsuren, K.; Berger, N.; Berlowski, M.; Bertani, M.; Bettoni, D.; Bianchi, F.; Bianco, E.; Bortone, A.; Boyko, I.; Briere, R. A.; Brueggemann, A.; Cai, H.; Cai, X.; Calcaterra, A.; Cao, G. F.; Cao, N.; Cetin, S. A.; Chang, J. F.; Che, G. R.; Chelkov, G.; Chen, C.; Chen, C. H.; Chen, Chao; Chen, G.; Chen, H. S.; Chen, H. Y.; Chen, M. L.; Chen, S. J.; Chen, S. L.; Chen, S. M.; Chen, T.; Chen, X. R.; Chen, X. T.; Chen, Y. B.; Chen, Y. Q.; Chen, Z. J.; Chen, Z. Y.; Choi, S. K.; Cibinetto, G.; Cossio, F.; Cui, J. J.; Dai, H. L.; Dai, J. P.; Dbeyssi, A.; de Boer, R. E.; Dedovich, D.; Deng, C. Q.; Deng, Z. Y.; Denig, A.; Denysenko, I.; Destefanis, M.; De Mori, F.; Ding, B.; Ding, X. X.; Ding, Y.; Ding, Y.; Dong, J.; Dong, L. Y.; Dong, M. Y.; Dong, X.; Du, M. C.; Du, S. X.; Duan, Y. Y.; Duan, Z. 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doi:10.1103/PhysRevD.109.072018

Study of $h_{c} \to 3 (π^{+} π^{-}) π^{0}$ , $h_{c} \to 2 (π^{+} π^{-}) ω$ , $h_{c} \to 2 (π^{+} π^{-}) π^{0} η$ , $h_{c} \to 2 (π^{+} π^{-}) η$ , and $h_{c} \to p \bar{p}$

Journal Article · Tue Apr 30 00:00:00 EDT 2024 · Physical Review. D.

DOI:https://doi.org/10.1103/PhysRevD.109.072018· OSTI ID:2349392

Ablikim, M.; Achasov, M. N.; Adlarson, P.; Afedulidis, O.; Ai, X. C.; Aliberti, R.; Amoroso, A.; An, Q.; Bai, Y.; Bakina, O.; Balossino, I.; Ban, Y.; Bao, H. -R.; Batozskaya, V.; Begzsuren, K.; Berger, N.; Berlowski, M.; Bertani, M.; Bettoni, D.; Bianchi, F. more »

Based on $(2712.4 \pm 14.1) \times 10^{6}$ $ψ (3686)$ events collected with the BESIII detector, we study the decays $h_{c} \to 3 (π^{+} π^{-}) π^{0}$ , $h_{c} \to 2 (π^{+} π^{-}) ω$ , $h_{c} \to 2 (π^{+} π^{-}) π^{0} η$ , $h_{c} \to 2 (π^{+} π^{-}) η$ , and $h_{c} \to p \bar{p}$ via $ψ (3686) \to π^{0} h_{c}$ . The decay channel $h_{c} \to 3 (π^{+} π^{-}) π^{0}$ is observed for the first time, and its branching fraction is determined to be $(9.28 \pm 1.14 \pm 0.77) \times 10^{- 3}$ , where the first uncertainty is statistical and the second is systematic. In addition, first evidence is found for the modes $h_{c} \to 2 (π^{+} π^{-}) π^{0} η$ and $h_{c} \to 2 (π^{+} π^{-}) ω$ with significances of $4.8 σ$ and $4.7 σ$ , and their branching fractions are determined to be $(7.55 \pm 1.51 \pm 0.77) \times 10^{- 3}$ and $(4.00 \pm 0.86 \pm 0.35) \times 10^{- 3}$ , respectively. No significant signals of $h_{c} \to 2 (π^{+} π^{-}) η$ and $h_{c} \to p \bar{p}$ are observed, and the upper limits of the branching fractions of these decays are determined to be $< 6.19 \times 10^{- 4}$ and $< 4.40 \times 10^{- 5}$ at the 90% confidence level, respectively.

Published by the American Physical Society 2024

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Research Organization:: Indiana Univ., Bloomington, IN (United States)

Sponsoring Organization:: USDOE; USDOE Office of Science (SC)

Grant/Contract Number:: FG02-05ER41374

OSTI ID:: 2349392

Alternate ID(s):: OSTI ID: 2579399

Journal Information:: Physical Review. D., Journal Name: Physical Review. D. Journal Issue: 7 Vol. 109; ISSN PRVDAQ; ISSN 2470-0010

Publisher:: American Physical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

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Journal Article · Sun Apr 07 20:00:00 EDT 2024 · Physical Review. D. · OSTI ID:2335517

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Study of h c → 3 ( π + π − ) π 0 , h c → 2 ( π + π − ) ω , h c → 2 ( π + π − ) π 0 η , h c → 2 ( π + π − ) η , and h c → p p ¯

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Study of $h_{c} \to 3 (π^{+} π^{-}) π^{0}$ , $h_{c} \to 2 (π^{+} π^{-}) ω$ , $h_{c} \to 2 (π^{+} π^{-}) π^{0} η$ , $h_{c} \to 2 (π^{+} π^{-}) η$ , and $h_{c} \to p \bar{p}$