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http://hdl.handle.net/2445/186474
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DC Field | Value | Language |
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dc.contributor.author | Camboni, Alessandro | - |
dc.contributor.author | Coquereau, S. | - |
dc.contributor.author | Garrido Beltrán, Lluís | - |
dc.contributor.author | Gascon, D. | - |
dc.contributor.author | Graciani Díaz, Ricardo | - |
dc.contributor.author | Graugés Pous, Eugeni | - |
dc.contributor.author | Marin Benito, Carla | - |
dc.contributor.author | Picatoste Olloqui, E. | - |
dc.contributor.author | Rives Molina, V. | - |
dc.contributor.author | Alfonso Albero, Alejandro | - |
dc.contributor.author | Calvo Gomez, M. | - |
dc.contributor.author | Gironella Gironell, P. | - |
dc.contributor.author | Vazquez Gomez, R. | - |
dc.contributor.author | LHCb Collaboration | - |
dc.date.accessioned | 2022-06-08T12:48:05Z | - |
dc.date.available | 2022-06-08T12:48:05Z | - |
dc.date.issued | 2017-06 | - |
dc.identifier.issn | 0370-2693 | - |
dc.identifier.uri | http://hdl.handle.net/2445/186474 | - |
dc.description.abstract | A search for time-integrated CP violation in the Cabibbo-suppressed decay D0 →π+π-π+π- is performed using an unbinned, model-independent technique known as the energy test. This is the first application of the energy test in four-body decays. The search is performed for P-even CP asymmetries and, for the first time, is extended to probe the P-odd case. Using proton-proton collision data corresponding to an integrated luminosity of 3.0 fb-1 collected by the LHCb detector at centre-of-mass energies of √{ s} = 7 TeV and 8 TeV, the world's best sensitivity to CP violation in this decay is obtained. The data are found to be consistent with the hypothesis of CP symmetry with a p-value of (4.6 ± 0.5)% in the P-even case, and marginally consistent with a p-value of (0.6 ± 0.2)% in the P-odd case, corresponding to a significance for CP non-conservation of 2.7 standard deviations. | - |
dc.format.extent | 12 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Elsevier B.V. | - |
dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.1016/j.physletb.2017.03.062 | - |
dc.relation.ispartof | Physics Letters B, 2017, vol. 769, p. 345-356 | - |
dc.relation.uri | https://doi.org/10.1016/j.physletb.2017.03.062 | - |
dc.rights | cc-by (c) Camboni, Alessandro et al., 2017 | - |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | - |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Hadrons | - |
dc.subject.classification | Gran Col·lisionador d'Hadrons | - |
dc.subject.classification | Física de partícules | - |
dc.subject.classification | Experiments | - |
dc.subject.other | Hadrons | - |
dc.subject.other | Large Hadron Collider (France and Switzerland) | - |
dc.subject.other | Particle physics | - |
dc.subject.other | Experiments | - |
dc.title | Search for CP violation in the phase space of D0 → π+π-π+π- decays | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 678003 | - |
dc.date.updated | 2022-06-08T12:48:06Z | - |
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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678003.pdf | 1.32 MB | Adobe PDF | View/Open |
This item is licensed under a Creative Commons License