Measurement of e+e- →π0π0ψ (3686) at s from 4.009 to 4.600 GeV and observation of a neutral charmoniumlike structure MEASUREMENT of ... M. ABLIKIM et al.

(BESIII Collaboration)

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

Using e+e- collision data collected with the BESIII detector at the BEPCII collider corresponding to an integrated luminosity of 5.2 fb-1 at center-of-mass energies (s) from 4.009 to 4.600 GeV, the process e+e-→π0π0ψ(3686) is studied for the first time. The corresponding Born cross sections are measured and found to be half of those of the reaction e+e-→π+π-ψ(3686). This is consistent with the expectation from isospin symmetry. Furthermore, the Dalitz plots for π0π0ψ(3686) are accordant with those of π+π-ψ(3686) at all energy points, and a neutral analog to the structure in π±ψ(3686) around 4040 MeV/c2 first observed at s=4.416 GeV is observed in the isospin neutral mode at the same energy.

Original languageEnglish (US)
Article number052001
JournalPhysical Review D
Volume97
Issue number5
DOIs
StatePublished - Mar 1 2018

Bibliographical note

Publisher Copyright:
© 2018 authors.

Fingerprint

Dive into the research topics of 'Measurement of e+e- →π0π0ψ (3686) at s from 4.009 to 4.600 GeV and observation of a neutral charmoniumlike structure MEASUREMENT of ... M. ABLIKIM et al.'. Together they form a unique fingerprint.

Cite this