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http://hdl.handle.net/2445/171018
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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 | 2020-10-07T10:25:40Z | - |
dc.date.available | 2020-10-07T10:25:40Z | - |
dc.date.issued | 2019-02-22 | - |
dc.identifier.issn | 0031-9007 | - |
dc.identifier.uri | http://hdl.handle.net/2445/171018 | - |
dc.description.abstract | Recent investigations have suggested that the six-quark combination u u d d s s could be a deeply bound state ( S ) that has eluded detection so far, and a potential dark matter candidate. We report the first search for a stable, doubly strange six-quark state in Υ → S ¯ Λ ¯ Λ decays based on a sample of 90 × 1 0 6 Υ ( 2 S ) and 110 × 1 0 6 Υ ( 3 S ) decays collected by the BABAR experiment. No signal is observed, and 90% confidence level limits on the combined Υ ( 2 S , 3 S ) → S ¯ Λ ¯ Λ branching fraction in the range ( 1.2 - 1.4 ) × 1 0 − 7 are derived for m S < 2.05 GeV . These bounds set stringent limits on the existence of such exotic particles. | - |
dc.format.extent | 7 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/PhysRevLett.122.072002 | - |
dc.relation.ispartof | Physical Review Letters, 2019, vol. 122, num. 7, p. 072002 | - |
dc.relation.uri | https://doi.org/10.1103/PhysRevLett.122.072002 | - |
dc.rights | cc- by (c) Graugés et. al. , 2019 | - |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | * |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Quarks | - |
dc.subject.classification | Matèria fosca (Astronomia) | - |
dc.subject.classification | Partícules (Matèria) | - |
dc.subject.other | Quarks | - |
dc.subject.other | Dark matter (Astronomy) | - |
dc.subject.other | Particles | - |
dc.title | Search for a Stable Six-Quark State at BABAR | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 694505 | - |
dc.date.updated | 2020-10-07T10:25:40Z | - |
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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694505.pdf | 595.39 kB | Adobe PDF | View/Open |
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