Search for Vector Charmonium(-Like) States in the e+e-→ηJψ Line Shape
Joint Authors
Source
Advances in High Energy Physics
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-05-09
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
The cross section of e+e-→ηJ/ψ has been measured by BESIII and Belle experiments.
Fit to the e+e-→ηJ/ψ line shape, the resonant structures are evident.
The parameters for the three resonant structures are M1=(3980±17±7) MeV/c2, Γ1=(104±32±13) MeV; M2=(4219±5±4) MeV/c2, Γ2=(63±9±3) MeV; and M3=(4401±12±4) MeV/c2, Γ3=(49±19±4) MeV, where the first uncertainties are statistical and the second are systematic.
We attribute the three structures to ψ(4040), Y(4220), and ψ(4415) states.
The branching fractions B(ψ(4040)→ηJ/ψ) and B(ψ(4415)→ηJ/ψ) are given.
If Y(4220) is taken as ψ(4S) state, the branching fraction B(ψ(4S)→ηJ/ψ) is also given.
Combining all Y(4220) parameters obtained from different decays, we give average parameters for Y(4220), which are MY(4220)=(4220.8±2.4) MeV/c2, ΓY(4220)=(54.8±3.3) MeV.
American Psychological Association (APA)
Zhang, Jielei& Wang, Rumin. 2018. Search for Vector Charmonium(-Like) States in the e+e-→ηJψ Line Shape. Advances in High Energy Physics،Vol. 2018, no. 2018, pp.1-5.
https://search.emarefa.net/detail/BIM-1118118
Modern Language Association (MLA)
Zhang, Jielei& Wang, Rumin. Search for Vector Charmonium(-Like) States in the e+e-→ηJψ Line Shape. Advances in High Energy Physics No. 2018 (2018), pp.1-5.
https://search.emarefa.net/detail/BIM-1118118
American Medical Association (AMA)
Zhang, Jielei& Wang, Rumin. Search for Vector Charmonium(-Like) States in the e+e-→ηJψ Line Shape. Advances in High Energy Physics. 2018. Vol. 2018, no. 2018, pp.1-5.
https://search.emarefa.net/detail/BIM-1118118
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1118118