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http://hdl.handle.net/2445/135277
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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 | 2019-06-18T09:20:44Z | - |
dc.date.available | 2019-06-18T09:20:44Z | - |
dc.date.issued | 2010-08-19 | - |
dc.identifier.issn | 0031-9007 | - |
dc.identifier.uri | http://hdl.handle.net/2445/135277 | - |
dc.description.abstract | We report a direct measurement of D 0 − ¯¯¯ D 0 mixing parameters through a time-dependent amplitude analysis of the Dalitz plots of D 0 → K 0 S π + π − and, for the first time, D 0 → K 0 S K + K − decays. The low-momentum pion π + s in the decay D * + → D 0 π + s identifies the flavor of the neutral D meson at its production. Using 468.5 fb − 1 of e + e − colliding-beam data recorded near √ s = 10.6 GeV by the BABAR detector at the PEP-II asymmetric-energy collider at SLAC, we measure the mixing parameters x = [ 1.6 ± 2.3 ( stat ) ± 1.2 ( syst ) ± 0.8 ( model ) ] × 10 − 3 , and y = [ 5.7 ± 2.0 ( stat ) ± 1.3 ( syst ) ± 0.7 ( model ) ] × 10 − 3 . These results provide the best measurement to date of x and y . The knowledge of the value of x , in particular, is crucial for understanding the origin of mixing. | - |
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.105.081803 | - |
dc.relation.ispartof | Physical Review Letters, 2010, vol. 105, num. 8, p. 081803 | - |
dc.relation.uri | https://doi.org/10.1103/PhysRevLett.105.081803 | - |
dc.rights | (c) American Physical Society, 2010 | - |
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 | Measurement of D0−¯¯¯D0 Mixing Parameters Using D0→K0Sπ+π− and D0→K0SK+K− Decays | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 601945 | - |
dc.date.updated | 2019-06-18T09:20:44Z | - |
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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601945.pdf | 522.67 kB | Adobe PDF | View/Open |
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