A search for the decay hc→ π0J/ψ is performed using a sample of hc produced in the reaction e+e−→ π+π−hc. The data samples were collected with the BESIII detector at center-of-mass energies between 4.189 and 4.437 GeV, corresponding to a total integrated luminosity of 11 fb−1. No significant signal is observed. Upper limits on the branching ratio B(hc→ π0J/ψ)/B(hc→ γηc→ γK+K−π0) and on the branching fraction B(hc→ π0J/ψ) are determined to be 7.5 × 10−2 and 4.7 × 10−4 at 90% confidence level, respectively. The latter is derived from the former using the measured branching fraction of the normalization channel. This is the first determination of the upper limit of the decay hc→ π0J/ψ

Search for the decay hc → π 0 J/ψ

I. Garzia;
2022

Abstract

A search for the decay hc→ π0J/ψ is performed using a sample of hc produced in the reaction e+e−→ π+π−hc. The data samples were collected with the BESIII detector at center-of-mass energies between 4.189 and 4.437 GeV, corresponding to a total integrated luminosity of 11 fb−1. No significant signal is observed. Upper limits on the branching ratio B(hc→ π0J/ψ)/B(hc→ γηc→ γK+K−π0) and on the branching fraction B(hc→ π0J/ψ) are determined to be 7.5 × 10−2 and 4.7 × 10−4 at 90% confidence level, respectively. The latter is derived from the former using the measured branching fraction of the normalization channel. This is the first determination of the upper limit of the decay hc→ π0J/ψ
2022
Ablikim, M.; Achasov, M. N.; Adlarson, P.; Ahmed, S.; Albrecht, M.; Aliberti, R.; Amoroso, A.; An, M. R.; An, Q.; Bai, X. H.; Bai, Y.; Bakina, O.; Bal...espandi
File in questo prodotto:
File Dimensione Formato  
JHEP05(2022)003.pdf

accesso aperto

Descrizione: Full text editoriale
Tipologia: Full text (versione editoriale)
Licenza: Creative commons
Dimensione 710.22 kB
Formato Adobe PDF
710.22 kB Adobe PDF Visualizza/Apri

I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/2505578
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 1
  • ???jsp.display-item.citation.isi??? 1
social impact