Resonant parameters of the Y ( 4220 )
The vector charmoniumlike state Y(4220) was reported recently in the cross sections of e+e−→π+π−hc, ωχc0, π+π−J/ψ, and D0D*−π++c.c. measured by the BESIII experiment. A combined fit is performed to the cross sections of these four final states to measure the resonant parameters of the Y(4220). We de...
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| Veröffentlicht in: | Physical review. D 2017-05, Vol.95 (9), Article 092007 |
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| creator | Gao, X. Y. Shen, C. P. Yuan, C. Z. |
| description | The vector charmoniumlike state Y(4220) was reported recently in the cross sections of e+e−→π+π−hc, ωχc0, π+π−J/ψ, and D0D*−π++c.c. measured by the BESIII experiment. A combined fit is performed to the cross sections of these four final states to measure the resonant parameters of the Y(4220). We determine a mass M=(4219.6±3.3±5.1) MeV/c2 and a total width Γ=(56.0±3.6±6.9) MeV for the Y(4220), where the first uncertainties are statistical and the second ones systematic. We determine the lower limit of its leptonic decay width of around 30 eV, which can be compared with the theoretical expectations of different models. We also estimate its partial decay width to ππJ/ψ in different scenarios. This information is essential for the understanding of the nature of this state. |
| doi_str_mv | 10.1103/PhysRevD.95.092007 |
| format | Article |
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Y. ; Shen, C. P. ; Yuan, C. Z.</creator><creatorcontrib>Gao, X. Y. ; Shen, C. P. ; Yuan, C. Z.</creatorcontrib><description>The vector charmoniumlike state Y(4220) was reported recently in the cross sections of e+e−→π+π−hc, ωχc0, π+π−J/ψ, and D0D*−π++c.c. measured by the BESIII experiment. A combined fit is performed to the cross sections of these four final states to measure the resonant parameters of the Y(4220). We determine a mass M=(4219.6±3.3±5.1) MeV/c2 and a total width Γ=(56.0±3.6±6.9) MeV for the Y(4220), where the first uncertainties are statistical and the second ones systematic. We determine the lower limit of its leptonic decay width of around 30 eV, which can be compared with the theoretical expectations of different models. We also estimate its partial decay width to ππJ/ψ in different scenarios. This information is essential for the understanding of the nature of this state.</description><identifier>ISSN: 2470-0010</identifier><identifier>EISSN: 2470-0029</identifier><identifier>DOI: 10.1103/PhysRevD.95.092007</identifier><language>eng</language><publisher>College Park: American Physical Society</publisher><subject>Cross-sections ; Decay ; Parameters</subject><ispartof>Physical review. 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D</title><description>The vector charmoniumlike state Y(4220) was reported recently in the cross sections of e+e−→π+π−hc, ωχc0, π+π−J/ψ, and D0D*−π++c.c. measured by the BESIII experiment. A combined fit is performed to the cross sections of these four final states to measure the resonant parameters of the Y(4220). We determine a mass M=(4219.6±3.3±5.1) MeV/c2 and a total width Γ=(56.0±3.6±6.9) MeV for the Y(4220), where the first uncertainties are statistical and the second ones systematic. We determine the lower limit of its leptonic decay width of around 30 eV, which can be compared with the theoretical expectations of different models. We also estimate its partial decay width to ππJ/ψ in different scenarios. 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Z.</creator><general>American Physical Society</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20170501</creationdate><title>Resonant parameters of the Y ( 4220 )</title><author>Gao, X. Y. ; Shen, C. P. ; Yuan, C. Z.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c275t-eeaff256961c49aec2e97efed60714d5e8d29f3bf1cc72bca08788281b9554483</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Cross-sections</topic><topic>Decay</topic><topic>Parameters</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gao, X. Y.</creatorcontrib><creatorcontrib>Shen, C. P.</creatorcontrib><creatorcontrib>Yuan, C. Z.</creatorcontrib><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Physical review. D</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Gao, X. Y.</au><au>Shen, C. P.</au><au>Yuan, C. Z.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Resonant parameters of the Y ( 4220 )</atitle><jtitle>Physical review. D</jtitle><date>2017-05-01</date><risdate>2017</risdate><volume>95</volume><issue>9</issue><artnum>092007</artnum><issn>2470-0010</issn><eissn>2470-0029</eissn><abstract>The vector charmoniumlike state Y(4220) was reported recently in the cross sections of e+e−→π+π−hc, ωχc0, π+π−J/ψ, and D0D*−π++c.c. measured by the BESIII experiment. A combined fit is performed to the cross sections of these four final states to measure the resonant parameters of the Y(4220). We determine a mass M=(4219.6±3.3±5.1) MeV/c2 and a total width Γ=(56.0±3.6±6.9) MeV for the Y(4220), where the first uncertainties are statistical and the second ones systematic. We determine the lower limit of its leptonic decay width of around 30 eV, which can be compared with the theoretical expectations of different models. We also estimate its partial decay width to ππJ/ψ in different scenarios. This information is essential for the understanding of the nature of this state.</abstract><cop>College Park</cop><pub>American Physical Society</pub><doi>10.1103/PhysRevD.95.092007</doi></addata></record> |
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| subjects | Cross-sections Decay Parameters |
| title | Resonant parameters of the Y ( 4220 ) |
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