Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/131426
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DC Field | Value | Language |
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dc.contributor.author | Graugés Pous, Eugeni | - |
dc.contributor.author | BABAR Collaboration | - |
dc.date.accessioned | 2019-04-04T13:31:12Z | - |
dc.date.available | 2019-04-04T13:31:12Z | - |
dc.date.issued | 2006-11-17 | - |
dc.identifier.issn | 1550-7998 | - |
dc.identifier.uri | http://hdl.handle.net/2445/131426 | - |
dc.description.abstract | We study the initial-state-radiation processes e + e − → K + K − π + π − γ and e + e − → K + K − π 0 π 0 γ using an integrated luminosity of 232 fb − 1 collected at the Υ ( 4 S ) mass with the BABAR detector at SLAC. Even though these reactions are dominated by intermediate states with excited kaons, we are able to study for the first time the cross section for e + e − → ϕ ( 1020 ) f 0 ( 980 ) as a function of center-of-mass energy. We observe a structure near threshold consistent with a 1 −− resonance with mass m = 2.175 ± 0.010 ± 0.015 GeV / c 2 and width Γ = 58 ± 16 ± 20 MeV . We observe no Y ( 4260 ) signal and set a limit of B Y → ϕ π + π − ⋅ Γ Y e e < 0.4 eV (90% confidence level), which excludes some models. | - |
dc.format.extent | 9 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | American Physical Society | - |
dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.74.091103 | - |
dc.relation.ispartof | Physical Review D, 2006, vol. 74, num. 9, p. 091103(R) | - |
dc.relation.uri | https://doi.org/10.1103/PhysRevD.74.091103 | - |
dc.rights | (c) American Physical Society, 2006 | - |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Física de partícules | - |
dc.subject.classification | Experiments | - |
dc.subject.other | Particle physics | - |
dc.subject.other | Experiments | - |
dc.title | Structure at 2175 MeV in e+e− → ϕf0(980) observed via initial-state radiation | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 551672 | - |
dc.date.updated | 2019-04-04T13:31:13Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
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551672.pdf | 582.83 kB | Adobe PDF | View/Open |
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