Search for Vector Charmonium(-Like) States in the e+e-→ηJ/ψ Line Shape
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±...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2018-01-01
|
| Series: | Advances in High Energy Physics |
| Online Access: | http://dx.doi.org/10.1155/2018/5407672 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832565193556623360 |
|---|---|
| author | Jielei Zhang Rumin Wang |
| author_facet | Jielei Zhang Rumin Wang |
| author_sort | Jielei Zhang |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-b692a9b28144415ab8da19257a7409a3 |
| institution | Kabale University |
| issn | 1687-7357 1687-7365 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in High Energy Physics |
| spelling | doaj-art-b692a9b28144415ab8da19257a7409a32025-02-03T01:09:09ZengWileyAdvances in High Energy Physics1687-73571687-73652018-01-01201810.1155/2018/54076725407672Search for Vector Charmonium(-Like) States in the e+e-→ηJ/ψ Line ShapeJielei Zhang0Rumin Wang1College of Physics and Electronic Engineering, Xinyang Normal University, Xinyang 464000, ChinaCollege of Physics and Electronic Engineering, Xinyang Normal University, Xinyang 464000, ChinaThe 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.http://dx.doi.org/10.1155/2018/5407672 |
| spellingShingle | Jielei Zhang Rumin Wang Search for Vector Charmonium(-Like) States in the e+e-→ηJ/ψ Line Shape Advances in High Energy Physics |
| title | Search for Vector Charmonium(-Like) States in the e+e-→ηJ/ψ Line Shape |
| title_full | Search for Vector Charmonium(-Like) States in the e+e-→ηJ/ψ Line Shape |
| title_fullStr | Search for Vector Charmonium(-Like) States in the e+e-→ηJ/ψ Line Shape |
| title_full_unstemmed | Search for Vector Charmonium(-Like) States in the e+e-→ηJ/ψ Line Shape |
| title_short | Search for Vector Charmonium(-Like) States in the e+e-→ηJ/ψ Line Shape |
| title_sort | search for vector charmonium like states in the e e ηj ψ line shape |
| url | http://dx.doi.org/10.1155/2018/5407672 |
| work_keys_str_mv | AT jieleizhang searchforvectorcharmoniumlikestatesintheeeējpslineshape AT ruminwang searchforvectorcharmoniumlikestatesintheeeējpslineshape |