Using a data sample of 427.9 fb(-1) collected by the Belle II detector at or near the Upsilon(4S) and Upsilon(10753) resonances, the cross sections for e(+)e(-) -> h(+)h(-)J/psi(h = pi/K/p) at center-of-mass energies ranging from 3.8 GeV or the production threshold to 5.5/6.0/7.0 GeV have been measured via initial-state radiation. The cross sections for the processes e(+)e(-) -> pi(+)pi(-)J/psi and e(+)e(-) -> K+K- J/psi are consistent with previously published results. The cross sections for these channels obtained by combining with previous Belle results are also given. The process e(+)e(-) -> p (p) over barJ/psi is investigated for the first time. The yields are small and no significant structure is observed in the cross section versus energy. Searches for vector charmoniumlike states in the h(+)h(-)J/psi systems, and for associated intermediate states in the h(+/-)J/psi systems, are also presented.

Abumusabh, M., Adachi, I., Aggarwal, A., Aggarwal, L., Ahmed, H., Ahn, Y., et al. (2026). Studyof e+e− →h+ h− J/ψ (h=π,K,p) via initial-state radiation at Belle II. PHYSICAL REVIEW D, 113(11), 112010-1-112010-16 [10.1103/f8qf-b284].

Studyof e+e− →h+ h− J/ψ (h=π,K,p) via initial-state radiation at Belle II

Di Canto, A.;
2026

Abstract

Using a data sample of 427.9 fb(-1) collected by the Belle II detector at or near the Upsilon(4S) and Upsilon(10753) resonances, the cross sections for e(+)e(-) -> h(+)h(-)J/psi(h = pi/K/p) at center-of-mass energies ranging from 3.8 GeV or the production threshold to 5.5/6.0/7.0 GeV have been measured via initial-state radiation. The cross sections for the processes e(+)e(-) -> pi(+)pi(-)J/psi and e(+)e(-) -> K+K- J/psi are consistent with previously published results. The cross sections for these channels obtained by combining with previous Belle results are also given. The process e(+)e(-) -> p (p) over barJ/psi is investigated for the first time. The yields are small and no significant structure is observed in the cross section versus energy. Searches for vector charmoniumlike states in the h(+)h(-)J/psi systems, and for associated intermediate states in the h(+/-)J/psi systems, are also presented.
2026
Abumusabh, M., Adachi, I., Aggarwal, A., Aggarwal, L., Ahmed, H., Ahn, Y., et al. (2026). Studyof e+e− →h+ h− J/ψ (h=π,K,p) via initial-state radiation at Belle II. PHYSICAL REVIEW D, 113(11), 112010-1-112010-16 [10.1103/f8qf-b284].
Abumusabh, M.; Adachi, I.; Aggarwal, A.; Aggarwal, L.; Ahmed, H.; Ahn, Y.; Aihara, H.; Akopov, N.; Alghamdi, S.; Alhakami, M.; Aloisio, A.; Althubiti,...espandi
File in questo prodotto:
File Dimensione Formato  
f8qf-b284.pdf

accesso aperto

Descrizione: Pubblicazione
Tipo: Versione (PDF) editoriale / Version Of Record
Licenza: Licenza per Accesso Aperto. Creative Commons Attribuzione (CCBY)
Dimensione 828.67 kB
Formato Adobe PDF
828.67 kB Adobe PDF Visualizza/Apri

I documenti in IRIS 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/11585/1083399
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 1
  • ???jsp.display-item.citation.isi??? 1
  • OpenAlex 0
social impact