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dc.contributor.authorCalvo Gómez, Míriam-
dc.contributor.authorCamboni, Alessandro-
dc.contributor.authorComerma Montells, Albert-
dc.contributor.authorGarrido Beltrán, Lluís-
dc.contributor.authorGraciani Díaz, Ricardo-
dc.contributor.authorGraugés Pous, Eugeni-
dc.contributor.authorOyanguren Campos, Arantza de-
dc.contributor.authorPérez-Calero Yzquierdo, Antonio-
dc.contributor.authorPicatoste Olloqui, Eduardo-
dc.contributor.authorPotterat, Cédric-
dc.contributor.authorRives Molina, Vicente José-
dc.contributor.authorRuiz, Hugo (Ruiz Pérez)-
dc.contributor.authorRuiz Valls, Pablo-
dc.contributor.authorVilasis-Cardona, Xavier-
dc.contributor.authorLHCb Collaboration-
dc.description.abstractThe results of a search for the rare two-body charmless baryonic decays TeX and TeX are reported. The analysis uses a data sample, corresponding to an integrated luminosity of 0.9 fb−1, of pp collision data collected by the LHCb experiment at a centre-of-mass energy of 7 TeV. An excess of TeX candidates with respect to background expectations is seen with a statistical significance of 3.3 standard deviations. This is the first evidence for a two-body charmless baryonic B 0 decay. No significant TeX signal is observed, leading to an improvement of three orders of magnitude over previous bounds. If the excess events are interpreted as signal, the 68.3% confidence level intervals on the branching fractions are $ TeX $ where the first uncertainty is statistical and the second is systematic.-
dc.format.extent17 p.-
dc.publisherSpringer Verlag-
dc.relation.isformatofReproducció del document publicat a:
dc.relation.ispartofJournal of High Energy Physics, 2013, vol. 10, num. 5, p. 1-17-
dc.rightscc by, (c) LHCb Collaboration, 2013-
dc.subject.classificationCromodinàmica quàntica-
dc.subject.classificationPartícules (Física nuclear)-
dc.subject.classificationFísica nuclear-
dc.subject.otherQuantum chromodynamics-
dc.subject.otherParticles (Nuclear physics)-
dc.subject.otherNuclear physics-
dc.titleFirst evidence for the two-body charmless baryonic decay-
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)
Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))

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