The cross section of the process e+e-→η′J/ψ is measured at center-of-mass (c.m.) energies from s=4.178 to 4.600 GeV using data samples corresponding to a total integrated luminosity of 11  fb-1 collected with the BESIII detector operating at the BEPCII storage ring. The dependence of the cross section on s shows an enhancement around 4.2 GeV. While the shape of the cross section cannot be fully explained with a single ψ(4160) or ψ(4260) state, a coherent sum of the two states does provide a reasonable description of the data.

Cross section measurement of e+e−→η′J/ψ from s=4.178 to 4.600 GeV

Bettoni, D.;Cibinetto, G.;Garzia, I.;Mezzadri, G.;Savrié, M.;
2020

Abstract

The cross section of the process e+e-→η′J/ψ is measured at center-of-mass (c.m.) energies from s=4.178 to 4.600 GeV using data samples corresponding to a total integrated luminosity of 11  fb-1 collected with the BESIII detector operating at the BEPCII storage ring. The dependence of the cross section on s shows an enhancement around 4.2 GeV. While the shape of the cross section cannot be fully explained with a single ψ(4160) or ψ(4260) state, a coherent sum of the two states does provide a reasonable description of the data.
2020
Ablikim, M.; Achasov, M.  N.; Adlarson, P.; Ahmed, S.; Albrecht, M.; Alekseev, M.; Amoroso, A.; An, F.  F.; An, Q.; Bai, Y.; Bakina, O.; Ferroli, R. B...espandi
File in questo prodotto:
File Dimensione Formato  
PhysRevD.101.012008.pdf

accesso aperto

Descrizione: versione editoriale
Tipologia: Full text (versione editoriale)
Licenza: Creative commons
Dimensione 385.81 kB
Formato Adobe PDF
385.81 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/11392/2413888
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 23
  • ???jsp.display-item.citation.isi??? 14
social impact