The process e+e-→φη is studied at 22 center-of-mass energy points (s) between 2.00 and 3.08 GeV using 715 pb-1 of data collected with the BESIII detector. The measured Born cross section of e+e-→φη is found to be consistent with BABAR measurements, but with improved precision. A resonant structure around 2.175 GeV is observed with a significance of 6.9σ with mass (2163.5±6.2±3.0) MeV/c2 and width (31.1-11.6+21.1±1.1) MeV, where the first uncertainties are statistical and the second are systematic.

Study of the process e+e- →φη at center-of-mass energies between 2.00 and 3.08 GeV STUDY of the PROCESS ... ABLIKIM M. et al

Amoroso A.;Bianchi F.;Bortone A.;Destefanis M.;De Mori F.;Greco M.;Lavezzi L.;Maggiora M.;Marcello S.;Sosio S.;Spataro S.;
2021-01-01

Abstract

The process e+e-→φη is studied at 22 center-of-mass energy points (s) between 2.00 and 3.08 GeV using 715 pb-1 of data collected with the BESIII detector. The measured Born cross section of e+e-→φη is found to be consistent with BABAR measurements, but with improved precision. A resonant structure around 2.175 GeV is observed with a significance of 6.9σ with mass (2163.5±6.2±3.0) MeV/c2 and width (31.1-11.6+21.1±1.1) MeV, where the first uncertainties are statistical and the second are systematic.
2021
Inglese
Esperti anonimi
104
3
032007-1
032007-11
11
https://journals.aps.org/prd/abstract/10.1103/PhysRevD.104.032007
1 – prodotto con file in versione Open Access (allegherò il file al passo 6 - Carica)
262
520
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.; Ferroli R.B.; Balo...espandi
info:eu-repo/semantics/article
open
03-CONTRIBUTO IN RIVISTA::03A-Articolo su Rivista
File in questo prodotto:
File Dimensione Formato  
PhysRevD.104.032007.pdf

Accesso aperto

Descrizione: Articolo originale
Tipo di file: PDF EDITORIALE
Dimensione 535.4 kB
Formato Adobe PDF
535.4 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/2318/1810132
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 19
  • ???jsp.display-item.citation.isi??? 14
social impact