Articles publicats en revistes: Enviaments recents

Ara mostrant els elements 341-360 de 574

    • Observation of the decay B+c → ψ(2S)π+ 

      Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (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 

      García Piquer, Álvaro; Fornells Herrera, Albert; Golobardes, Elisabet; Cugota Florejachs, Laia (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± 

      Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (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− 

      Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (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 

      Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (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 

      Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (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 

      Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (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 

      Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (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 

      Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (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− 

      Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (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) 

      Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (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 

      Montero Morales, José Antonio (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 

      Alías-Pujol, Francesc; Socoró, Joan Claudi; Iriondo, Ignasi (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− 

      Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (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 

      Iriondo Sanz, Ignasi; Martí Roca, Josep; Oliver Lafont, Jaume; Guaus Termens, Roger; Moure González, Helena (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 

      González, Alberto J.; Martín de Pozuelo, Ramon; Germán, Martín; Alcober, Jesús; Pinyol, Francesc (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. ...

    • Search for Hidden-Sector Bosons in B0→K*0μ+μ− Decays 

      Badalov, Alexey; Calvo Gómez, Míriam; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Physical Review Letters, 2015, Vol. 115, No. 16 (Octubre), 2015-10-16)
      A search is presented for hidden-sector bosons, χ, produced in the decay B0→K∗(892)0χ, with K∗(892)0→K+π− and χ→μ+μ−. The search is performed using pp-collision data corresponding to 3.0  fb−1 collected ...

    • Observation of ¯B0(s)→J/ψ f1(1285) Decays and Measurement of the f1(1285) Mixing Angle 

      Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Physical Review Letters, 2014, Vol. 112, No. 9 (Març), 2014-03-04)
      Decays of ¯B0s and ¯B0 mesons into J/ψ π+π−π+π− final states, produced in pp collisions at the LHC, are investigated using data corresponding to an integrated luminosity of 3  fb−1 collected with the ...

    • Measurement of the Λ0b, Ξ−b, and Ω−b Baryon Masses 

      Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Physical Review Letters, 2013, Vol. 110, No. 18 (Maig), 2013-05-02)
      Bottom baryons decaying to a J/ψ meson and a hyperon are reconstructed using 1.0  fb−1 of data collected in 2011 with the LHCb detector. Significant Λ0b→J/ψΛ, Ξ−b→J/ψΞ− and Ω−b→J/ψΩ− signals are observed ...

    • Measurement of the CP Asymmetry in B0→K*0μ+μ− Decays 

      Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Physical Review Letters, 2013, Vol. 110, No. 3 (Gener), 2013-01-17)
      A measurement of the CP asymmetry in B0→K*0μ+μ− decays is presented, based on 1.0  fb−1 of pp collision data recorded by the LHCb experiment during 2011. The measurement is performed in six bins of ...