Recent XYZ studies at BESIII

In this talk, recent XYZ results at BESIII will be reviewed, that includes: Study of e+e−→π0X(3872)γ and search for Zc(4020)0→X(3872)γ; Observation of a near-threshold enhancement in the ΛΛ¯ mass spectrum from e+e−→ϕΛΛ¯ at the center-of-mass energies from 3.51 to 4.60 GeV; Observation of e+e−→ηψ(2S)...

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Bibliographic Details
Published inNuclear and particle physics proceedings Vol. 318-323; pp. 61 - 65
Main Author Xu, Wei
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.11.2022
Subjects
baryon-antibaryon pair threshold enhancement
BESIII
branching fraction
cross section
upper limit
XYZ states
XYZ states
branching fraction
BESIII
baryon-antibaryon pair threshold enhancement
cross section
upper limit
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Summary:In this talk, recent XYZ results at BESIII will be reviewed, that includes: Study of e+e−→π0X(3872)γ and search for Zc(4020)0→X(3872)γ; Observation of a near-threshold enhancement in the ΛΛ¯ mass spectrum from e+e−→ϕΛΛ¯ at the center-of-mass energies from 3.51 to 4.60 GeV; Observation of e+e−→ηψ(2S) at the center-of-mass energies from 4.236 to 4.600 GeV; Search for reaction e+e−→χcJπ+π− and a charmonium-like structure decaying to χcJπ± between 4.18 and 4.60 GeV; Search for the reaction channel e+e−→ηcηπ+π− at center-of-mass energies from 4.23 to 4.60 GeV.
ISSN:2405-6014
2405-6022
DOI:10.1016/j.nuclphysbps.2022.09.014