Study of the reaction e[superscript +]e[superscript -]→J/ψπ[superscript +]π[superscript -] via initial-state radiation at BABAR
We study the process e[superscript +]e[superscript -]→J/ψπ[superscript +]π[superscript -] with initial-state-radiation events produced at the PEP-II asymmetric-energy collider. The data were recorded with the BABAR detector at center-of-mass energies 10.58 and 10.54 GeV, and correspond to an integra...
| Principais autores: | , , |
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| Outros Autores: | |
| Formato: | Artigo |
| Idioma: | en_US |
| Publicado em: |
American Physical Society
2013
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| Acesso em linha: | http://hdl.handle.net/1721.1/76655 |
| _version_ | 1826188406501146624 |
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| author | Dujmic, Denis Sciolla, Gabriella Cowan, Ray F |
| author2 | Massachusetts Institute of Technology. Laboratory for Nuclear Science |
| author_facet | Massachusetts Institute of Technology. Laboratory for Nuclear Science Dujmic, Denis Sciolla, Gabriella Cowan, Ray F |
| author_sort | Dujmic, Denis |
| collection | MIT |
| description | We study the process e[superscript +]e[superscript -]→J/ψπ[superscript +]π[superscript -] with initial-state-radiation events produced at the PEP-II asymmetric-energy collider. The data were recorded with the BABAR detector at center-of-mass energies 10.58 and 10.54 GeV, and correspond to an integrated luminosity of 454 fb[superscript -1]. We investigate the J/ψπ[superscript +]π[superscript -] mass distribution in the region from 3.5 to 5.5 GeV/c[superscript 2]. Below 3.7 GeV/c[superscript 2] the ψ(2S) signal dominates, and above 4 GeV/c[superscript 2] there is a significant peak due to the Y(4260). A fit to the data in the range 3.74–5.50 GeV/c[superscript 2] yields a mass value 4245±5(stat)±4(syst) MeV/c[superscript 2] and a width value 114[subscript -15][superscript +16](stat)±7(syst) MeV for this state. We do not confirm the report from the Belle Collaboration of a broad structure at 4.01 GeV/c[superscript 2]. In addition, we investigate the π[superscript +]π[superscript -] system which results from Y(4260) decay. |
| first_indexed | 2024-09-23T07:58:49Z |
| format | Article |
| id | mit-1721.1/76655 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T07:58:49Z |
| publishDate | 2013 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/766552023-02-26T04:07:58Z Study of the reaction e[superscript +]e[superscript -]→J/ψπ[superscript +]π[superscript -] via initial-state radiation at BABAR Dujmic, Denis Sciolla, Gabriella Cowan, Ray F Massachusetts Institute of Technology. Laboratory for Nuclear Science Cowan, Ray Franklin Dujmic, Denis Sciolla, Gabriella We study the process e[superscript +]e[superscript -]→J/ψπ[superscript +]π[superscript -] with initial-state-radiation events produced at the PEP-II asymmetric-energy collider. The data were recorded with the BABAR detector at center-of-mass energies 10.58 and 10.54 GeV, and correspond to an integrated luminosity of 454 fb[superscript -1]. We investigate the J/ψπ[superscript +]π[superscript -] mass distribution in the region from 3.5 to 5.5 GeV/c[superscript 2]. Below 3.7 GeV/c[superscript 2] the ψ(2S) signal dominates, and above 4 GeV/c[superscript 2] there is a significant peak due to the Y(4260). A fit to the data in the range 3.74–5.50 GeV/c[superscript 2] yields a mass value 4245±5(stat)±4(syst) MeV/c[superscript 2] and a width value 114[subscript -15][superscript +16](stat)±7(syst) MeV for this state. We do not confirm the report from the Belle Collaboration of a broad structure at 4.01 GeV/c[superscript 2]. In addition, we investigate the π[superscript +]π[superscript -] system which results from Y(4260) decay. United States. Dept. of Energy National Science Foundation (U.S.) 2013-01-30T16:16:00Z 2013-01-30T16:16:00Z 2012-09 2012-04 Article http://purl.org/eprint/type/JournalArticle 1550-7998 1089-4918 http://hdl.handle.net/1721.1/76655 Lees, J. et al. “Study of the reaction e[superscript +]e[superscript -]→J/ψπ[superscript +]π[superscript -] via initial-state radiation at BABAR.” Physical Review D 86.5 (2012). © 2012 American Physical Society en_US http://dx.doi.org/10.1103/PhysRevD.86.051102 Physical Review D Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Dujmic, Denis Sciolla, Gabriella Cowan, Ray F Study of the reaction e[superscript +]e[superscript -]→J/ψπ[superscript +]π[superscript -] via initial-state radiation at BABAR |
| title | Study of the reaction e[superscript +]e[superscript -]→J/ψπ[superscript +]π[superscript -] via initial-state radiation at BABAR |
| title_full | Study of the reaction e[superscript +]e[superscript -]→J/ψπ[superscript +]π[superscript -] via initial-state radiation at BABAR |
| title_fullStr | Study of the reaction e[superscript +]e[superscript -]→J/ψπ[superscript +]π[superscript -] via initial-state radiation at BABAR |
| title_full_unstemmed | Study of the reaction e[superscript +]e[superscript -]→J/ψπ[superscript +]π[superscript -] via initial-state radiation at BABAR |
| title_short | Study of the reaction e[superscript +]e[superscript -]→J/ψπ[superscript +]π[superscript -] via initial-state radiation at BABAR |
| title_sort | study of the reaction e superscript e superscript j ψπ superscript π superscript via initial state radiation at babar |
| url | http://hdl.handle.net/1721.1/76655 |
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