Articles publicats en revistes: Recent submissions
Now showing items 301-320 of 538
-
First observation of ¯¯¯B0→J/ψK+K− and search for ¯¯¯B0→J/ψϕ decays
(Physical Review D, 2013, Vol. 88 , No.7 (Octubre), 2013-10-14)The first observation of the ¯¯¯B0→J/ψK+K− decay is presented with a data sample corresponding to an integrated luminosity of 1.0 fb−1 of pp collisions at a center-of-mass energy of 7 TeV collected ... -
Measurement of CP violation and the B0s meson decay width difference with B0s→J/ψK+K− and B0s→J/ψπ+π− decays
(Physical Review D, 2013, Vol. 87 , No.11 (Juny), 2013-06-21)The time-dependent CP asymmetry in B0s→J/ψK+K− decays is measured using pp collision data at √s=7 TeV, corresponding to an integrated luminosity of 1.0 fb−1, collected with the LHCb detector. The ... -
Measurement of the branching fractions of the decays B0s→¯¯¯D0K−π+ and B0→¯¯¯D0K+π−
(Physical Review D, 2013, Vol. 87 , No.11 (Juny), 2013-06-20)The first observation of the decay B0s→¯¯¯D0K−π+ is reported. The analysis is based on a data sample, corresponding to an integrated luminosity of 1.0 fb−1 of pp collisions, collected with the LHCb ... -
Studies of the decays B+→p¯ph+ and observation of B+→¯¯¯Λ(1520)p
(Physical Review D, 2013, Vol. 88 , No.5 (Setembre), 2013-09-19)Dynamics and direct CP violation in three-body charmless decays of charged B mesons to a proton, an antiproton and a light meson (pion or kaon) are studied using data, corresponding to an integrated ... -
Observation of the decay B+c → ψ(2S)π+
(Physical Review D, 2013, Vol. 87 , No.7 (Abril), 2013-04-26)The decay B+c→ψ(2S)π+ with ψ(2S)→μ+μ− is observed with a significance of 5.2σ using pp collision data corresponding to an integrated luminosity of 1.0 fb−1 collected by the LHCb experiment. The branching ... -
Validación de Competencias en Titulaciones Universitarias Usando Minería de Datos
(IEEE-RITA Revista Iberoamericana de Tecnologías del aprendizaje, 2010, Vol. 5, No. 1 (Febrer), 2010-02)Nowadays the successful acquisition of competences is the base for the achievement of the professional skills and, consequently, the educational methodologies need to be reconsidered. This work describes ... -
Search for the decay B0s → D*∓ π±
(Physical Review D, 2013, Vol. 87 , No.7 (Abril), 2013-04-23)A search for the decay B0s→D*∓π± is presented using a data sample corresponding to an integrated luminosity of 1.0 fb−1 of pp collisions collected by LHCb. This decay is expected to be mediated by a ... -
First observation of the decays ¯B0(s) → D+sK−π+π− and ¯B0s → Ds1(2536)+π−
(Physical Review D, 2012, Vol. 86 , No.11 (Desembre), 2012-12-20)The first observation of the decays ¯¯¯B0s→D+sK−π+π− and ¯¯¯B0→D+sK−π+π− are reported using an integrated luminosity of 1.0 fb−1 recorded by the LHCb experiment. The branching fractions, normalized ... -
Search for the X(4140) state in B+ → J/ψϕK+ decays
(Physical Review D, 2011, Vol. 85 , No.9 (Maig), 2012-05-04)A search for the X(4140) state in B+→J/ψϕK+ decays is performed with 0.37 fb−1 of pp collisions at √s=7 TeV collected by the LHCb experiment. No evidence for this state is found, in 2.4σ disagreement ... -
Search for CP violation in D+ → K−K+π+ decays
(Physical Review D, 2011, Vol. 84 , No. 11 (Desembre), 2011-12-28)A model-independent search for direct CP violation in the Cabibbo-suppressed decay D+→K−K+π+ in a sample of approximately 370 000 decays is carried out. The data were collected by the LHCb experiment ... -
Searches for Majorana neutrinos in B− decays
(Physical Review D, 2012, Vol. 85 , No.11 (Juny), 2012-06-11)Searches for heavy Majorana neutrinos in B− decays in final states containing hadrons plus a μ−μ− pair have been performed using 0.41 fb−1 of data collected with the LHCb detector in proton-proton ... -
Measurements of the branching fractions and CP asymmetries of B± → J/ψ π± and B± → ψ(2S) π± decays
(Physical Review D, 2012, Vol. 85 , No.9 (Maig), 2012-05-07)A study of B±→J/ψπ± and B±→ψ(2S)π± decays is performed with data corresponding to 0.37 fb−1 of proton-proton collisions at √s=7 TeV. Their branching fractions are found to be B(B±→J/ψπ±)=(3.88±0.11± ... -
Measurement of the B^0_s - \bar{B}^0_s oscillation frequency Delta m_s in B^0_s → D_s^-(3) π decays
(Physics Letters B , 2012, Vol. 709, No. 3 (Març), 2012-03-19)The B^0_s-\bar{B}^0_s oscillation frequency Delta m_s is measured with 36 pb^{-1} of data collected in pp collisions at \sqrt{s} = 7 TeV by the LHCb experiment at the Large Hadron Collider. A total of ... -
Analysis of the resonant components in ¯B0s → J/ψ π+ π−
(Physical Review D, 2012, Vol. 86 , No.5 (Setembre), 2012-09-17)The decay ¯¯¯B0s→J/ψπ+π− can be exploited to study CP violation. A detailed understanding of its structure is imperative in order to optimize its usefulness. An analysis of this three-body final state ... -
Measurement of the ratio of branching fractions B(B0→K*0γ)/B(B0s→ϕγ)
(Physical Review D, 2012, Vol. 85 , No.11 (Juny), 2012-06-25)The ratio of branching fractions of the radiative B decays B0→K*0γ and B0s→ϕγ has been measured using 0.37 fb−1 of pp collisions at a center of mass energy of √s=7 TeV, collected by the LHCb experiment. ... -
Álgebra aplicada en el mundo de las telecomunicaciones
(MSEL: Modelling in Science Education and Learning, 2008. Vol. 1 (Juny), 2008-06)En este documento se expone un ejercicio de modelización matemática que se propone a alumnos de ingeniería de telecomunicaciones durante el primer curso, en la asignatura de ´algebra lineal. Aunque la ... -
Aplicació de tècniques de generació automàtica de la parla en producció audiovisual
(Quaderns del CAC 37, 2011. Vol. 14, 2 (Desembre), 2011-12)En aquest article es presenta un resum del treball de recerca que porta el mateix títol, realitzat gràcies a l’ajut concedit pel CAC en la VII convocatòria d’Ajuts a projectes de recerca sobre ... -
Amplitude analysis and branching fraction measurement of ¯Bos → J/ψ K+K−
(Physical Review D, 2013, Vol. 87 , No.7 (Abril), 2013-04-08)An amplitude analysis of the final state structure in the ¯¯¯B0s→J/ψK+K− decay mode is performed using 1.0 fb−1 of data collected by the LHCb experiment in 7 TeV center-of-mass energy pp collisions ... -
Hacia una síntesis concatenativa de alta calidad para aplicaciones de conversión texto-habla
(Procesamiento del lenguaje natural, No 25 (1999), 1999)Este artículo describe nuevas líneas de investigación referentes a la síntesis concatenativa para la conversión texto-habla. La técnica TD-PSOLA supuso un salto importante en cuanto a la mejora de la ... -
New Framework and Mechanisms of Context‐Aware Service Composition in the Future Internet
(ETRI Journal, 2013. Vol. 35, 1, (Febrer), 2013-02)The ongoing proliferation of new services, applications, and contents is leading the Internet to an architectural crisis owing to its inability to provide efficient solutions to new requirements. ...