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http://hdl.handle.net/2445/131703
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DC Field | Value | Language |
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dc.contributor.author | Garra Ticó, Jordi | - |
dc.contributor.author | Graugés Pous, Eugeni | - |
dc.contributor.author | BABAR Collaboration | - |
dc.date.accessioned | 2019-04-08T08:00:59Z | - |
dc.date.available | 2019-04-08T08:00:59Z | - |
dc.date.issued | 2012-11-06 | - |
dc.identifier.issn | 1550-7998 | - |
dc.identifier.uri | http://hdl.handle.net/2445/131703 | - |
dc.description.abstract | We report a study of the process γ γ → X → η c π + π − , where X stands for one of the resonances χ c 2 ( 1 P ) , η c ( 2 S ) , X ( 3872 ) , X ( 3915 ) , or χ c 2 ( 2 P ) . The analysis is performed with a data sample of 473.9 fb − 1 collected with the BABAR detector at the PEP-II asymmetric-energy electron-positron collider. We do not observe a significant signal for any channel, and calculate 90% confidence-level upper limits on the products of branching fractions and two-photon widths Γ X → γ γ B ( X → η c π + π − ) : 15.7 eV for χ c 2 ( 1 P ) , 133 eV for η c ( 2 S ) , 11.1 eV for X ( 3872 ) (assuming it to be a spin-2 state), 16 eV for X ( 3915 ) (assuming it to be a spin-2 state), and 18 eV for χ c 2 ( 2 P ) . We also report upper limits on the ratios of branching fractions B ( η c ( 2 S ) → η c π + π − ) / B ( η c ( 2 S ) → K 0 S K + π − ) < 10.0 and B ( χ c 2 ( 1 P ) → η c π + π − ) / B ( χ c 2 ( 1 P ) → K 0 S K + π − ) < 32.9 at the 90% confidence level. | - |
dc.format.extent | 10 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.86.092005 | - |
dc.relation.ispartof | Physical Review D, 2012, vol. 86, num. 9, p. 092005 | - |
dc.relation.uri | https://doi.org/10.1103/PhysRevD.86.092005 | - |
dc.rights | (c) American Physical Society, 2012 | - |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Física de partícules | - |
dc.subject.classification | Fotons | - |
dc.subject.classification | Experiments | - |
dc.subject.other | Particle physics | - |
dc.subject.other | Photons | - |
dc.subject.other | Experiments | - |
dc.title | Search for resonances decaying to ηcπ+π- in two-photon interactions | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 632433 | - |
dc.date.updated | 2019-04-08T08:00:59Z | - |
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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632433.pdf | 3.84 MB | Adobe PDF | View/Open |
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