Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/133479
Title: Observation of D0−¯¯¯D0 Oscillations
Author: Abellan Beteta, Carlos
Calvo Gómez, Míriam
Camboni, Alessandro
Comerma Montells, Albert
Domingo Bonal, Francesc
Garrido Beltrán, Lluís
Grabalosa Gándara, Marc
Graciani Díaz, Ricardo
Graugés Pous, Eugeni
López Asamar, Elias
Pérez-Calero Yzquierdo, Antonio
Picatoste Olloqui, Eduardo
Potterat, Cédric
Rives Molina, Vicente José
Ruiz, Hugo (Ruiz Pérez)
Vázquez Gómez, Ricard
Vilasis-Cardona, Xavier
LHCb Collaboration
Keywords: Física de partícules
Experiments
Particle physics
Experiments
Issue Date: 5-Mar-2013
Publisher: American Physical Society
Abstract: We report a measurement of the time-dependent ratio of D 0 → K + π − to D 0 → K − π + decay rates in D * + -tagged events using 1.0     fb − 1 of integrated luminosity recorded by the LHCb experiment. We measure the mixing parameters x ' 2 = ( − 0.9 ± 1.3 ) × 10 − 4 , y ′ = ( 7.2 ± 2.4 ) × 10 − 3 , and the ratio of doubly-Cabibbo-suppressed to Cabibbo-favored decay rates R D = ( 3.52 ± 0.15 ) × 10 − 3 , where the uncertainties include statistical and systematic sources. The result excludes the no-mixing hypothesis with a probability corresponding to 9.1 standard deviations and represents the first observation of D 0 − ¯¯¯ D 0 oscillations from a single measurement.
Note: Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.110.101802
It is part of: Physical Review Letters, 2013, vol. 110, num. 10, p. 101802
URI: http://hdl.handle.net/2445/133479
Related resource: https://doi.org/10.1103/PhysRevLett.110.101802
ISSN: 0031-9007
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)
Articles publicats en revistes (Electrònica)

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