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Browsing by Author "Golobardes, Elisabet"

Now showing items 1-20 of 36

    • Análisis de titulaciones universitarias basadas en competencias mediante una técnica de clustering evolutiva multiobjetivo 

      García Piquer, Álvaro; Fornells Herrera, Albert; Golobardes, Elisabet; Orriols Puig, Albert; Cugota Florejachs, Laia (2010-09)
      Las competencias son la piedra angular en base a la cual giran los modelos educativos en la actualidad y, por ello, el correcto estudio de su relación entre las asignaturas y la manera como son evaluadas ...

    • BASTIAN: incorporating the Rough Sets theory into a Case-Bases Classifier System 

      Salamó Llorente, Maria; Golobardes, Elisabet (2000-10)
      This paper proposes how to incorporate the Rough Sets theory as a weighting method into a Case-Based Classifier System. This hybrid system has been implemented into the plat­form called BASTIAN ( ...

    • Classifying Microcalcifications in Digital Mammograms using Machine Learning techniques 

      Golobardes, Elisabet; Martí, Joan; Español, Josep; Salamó Llorente, Maria; Freixenet, Jordi; Llorà Fàbrega, Xavier; Maroto, Albert; Bernadó Mansilla, Ester (2001-10)
      This paper presents a Computer Aided Diag­nosis (CAD) of breast cancer from mammograms. The first part involves severa! image processing techniques, which extract a set of features from the microcalcifications ...

    • Decision Support System for the Breast Cancer Diagnosis by a Meta-learning Approach based on Grammar Evolution 

      Fornells Herrera, Albert; Golobardes, Elisabet; Bernado Mansilla, Ester; Martí Bonmatí, Joan (2006-05)
      The incidence of breast cancer varies greatly among countries, but statistics show that every year 720,000 new cases will be diagnosed world-wide. However, a low percentage of women who suffer it can ...

    • First Observation of the Decay B0s→K−μ+νμ and a Measurement of |Vub|/|Vcb| 

      Calvo Gómez, Míriam; Golobardes, Elisabet; Vilasís Cardona, Xavier (Physical Review Letters, 2021, Vol. 126, 2021-02)
      The first observation of the suppressed semileptonic B0s→K−μ+νμ decay is reported. Using a data sample recorded in pp collisions in 2012 with the LHCb detector, corresponding to an integrated luminosity ...

    • Genetic Classifier System as a heuristic weighting method for a Case-Based Classifier System 

      Golobardes, Elisabet; Llorà Fàbrega, Xavier; Garrell i Guiu, Josep Maria; Vernet Bellet, David; Bacardit, Jaume (2000-10)
      This paper proposes how to use a Genetic Classi­fier System as a heuristic weighting method for a Case-Based Classifier System. The preliminary re­sults are performed into a specific domain: the pre­diction ...

    • Measurement of CP observables in B± → DK± and B± → Dπ± with D → K0SK±π∓ decays 

      Calvo Gómez, Míriam; Camboni, Alessandro; Golobardes, Elisabet; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Journal of High Energy Physics, 2020, 58, 2020-05)
      Measurements of CP observables in B± → DK± and B± → Dπ± decays are presented, where D represents a superposition of D0 and D¯¯¯¯0 states. The D meson is reconstructed in the three-body final states ...

    • Measurement of CP Violation in the Decay B+→K+π0 

      Calvo Gómez, Míriam; Camboni, Alessandro; Golobardes, Elisabet; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Physical Review Letters, 2021, Vol. 126, 2021-03)
      A measurement of CP violation in the decay B+→K+π0 is reported using data corresponding to an integrated luminosity of 5.4  fb−1 collected with the LHCb experiment at a center-of-mass energy of √s=13  TeV. ...

    • Measurement of differential b¯b- and cc¯-dijet cross-sections in the forward region of pp collisions at √s = 13 TeV 

      LHCb Collaboration - CERN; Calvo Gómez, Míriam; Golobardes, Elisabet; Vilasís Cardona, Xavier (Journal of High Energy Physics, 2021, No. 23, 2021-02)
      The inclusive b ¯b- and cc¯-dijet production cross-sections in the forward region of pp collisions are measured using a data sample collected with the LHCb detector at a centre-of-mass energy of 13 TeV ...

    • Measurement of the branching fraction of the B0→D+sπ− decay 

      Calvo Gómez, Míriam; Camboni, Alessandro; Golobardes, Elisabet; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (European Physical Journal C, 2021, Vol. 81, No. 314, 2021-04)
      A branching fraction measurement of the B0→D+sπ− decay is presented using proton–proton collision data collected with the LHCb experiment, corresponding to an integrated luminosity of 5.0fb−1. The ...

    • Measurement of the CKM angle γ and B0s-B¯¯¯¯0s mixing frequency with B0s→D∓sh±π±π∓ decays 

      LHCb Collaboration - CERN; Calvo Gómez, Míriam; Golobardes, Elisabet; Vilasís Cardona, Xavier (Journal of High Energy Physics, 2021, Vol.3, No. 137, 2021-03)
      The CKM angle γ is measured for the first time from mixing-induced CP violation between B0s→D∓sK±π±π∓ and B¯¯¯¯0s→D±sK∓π∓π± decays reconstructed in proton-proton collision data corresponding to an ...

    • Measurement of the Λ0b → J/ψΛ angular distribution angular distribution and the Λ0b polarisation in pp collisions 

      Calvo Gómez, Míriam; Camboni, Alessandro; Golobardes, Elisabet; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Journal of High Energy Physics, 2020, 110, 2020-06-17)
      This paper presents an analysis of the Λ0b→ J/ψΛ angular distribution and the transverse production polarisation of Λ0b baryons in proton-proton collisions at centre-of-mass energies of 7, 8 and 13 TeV. ...

    • Observation of a new baryon state in the Λ0bπ+π− mass spectrum 

      Calvo Gómez, Míriam; Camboni, Alessandro; Golobardes, Elisabet; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Journal of High Energy Physics, 2020, 136, 2020-06)
      A new baryon state is observed in the Λ0bπ+π− mass spectrum with high significance using a data sample of pp collisions, collected with the LHCb detector at centre-of-mass energies s√ = 7, 8 and 13 TeV, ...

    • Observation of a New Excited D+s Meson in B0→D−D+K+π− Decays 

      Calvo Gómez, Míriam; Golobardes, Elisabet; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Physical Review Letters, 2021, Vol. 126, 2021-03)
      Using pp collision data corresponding to an integrated luminosity of 5.4  fb−1 collected with the LHCb detector at a center-of-mass energy of 13 TeV, the B0→D−D+K+π− decay is studied. A new excited D+s ...

    • Observation of a new Ξ0 b state 

      LHCb Collaboration - CERN; Calvo Gómez, Míriam; Golobardes, Elisabet; Vilasís Cardona, Xavier (Physical Review D, 2021, Vol. 103, No. 1, 2021-01)
      Using a proton-proton collision data sample collected by the LHCb experiment, corresponding to an integrated luminosity of 8.5 fb−1, the observation of a new excited Ξ0 b resonance decaying to the Ξ− b ...

    • Observation of a new Ξ0b state 

      Calvo Gómez, Míriam; Golobardes, Elisabet; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Physical Review D, 2021, Vol. 103, 2021-01)
      Using a proton-proton collision data sample collected by the LHCb experiment, corresponding to anintegrated luminosity of8.5fb−1, the observation of a new excitedΞ0bresonance decaying to theΞ−bπþfinal ...

    • Observation of CP violation in two-body B0(s) -meson decays to charged pions and kaons 

      LHCb Collaboration - CERN; Calvo Gómez, Míriam; Golobardes, Elisabet; Vilasís Cardona, Xavier (Journal of High Energy Physics, 2021, No. 75, 2021-03)
      The time-dependent CP asymmetries of B0 → π+π− and B0s → K+K− decays are measured using a data sample of pp collisions corresponding to an integrated luminosity of 1.9 fb−1, collected with the LHCb ...

    • Observation of Multiplicity Dependent Prompt χc1(3872) and ψ(2S) Production in pp Collisions 

      Calvo Gómez, Míriam; Golobardes, Elisabet; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Physical Review Letters, 2021, Vol. 126, 2021-03)
      The production of χc1(3872) and ψ(2S) hadrons is studied as a function of charged particle multiplicity in pp collisions at a center-of-mass energy of 8 TeV, corresponding to an integrated luminosity ...

    • Observation of New Ξ0c Baryons Decaying to Λ+cK− 

      Calvo Gómez, Míriam; Camboni, Alessandro; Golobardes, Elisabet; Vilasís Cardona, Xavier; LHCb Collaboration - CERN (Physical Review Letters, 2020, Vol.124, 222001, 2020-06)
      The Λ+cK− mass spectrum is studied with a data sample of pp collisions at a center-of-mass energy of 13 TeV corresponding to an integrated luminosity of 5.6  fb−1 collected by the LHCb experiment. Three ...

    • Observation of the B0s → D*±D∓ decay 

      LHCb Collaboration - CERN; Calvo Gómez, Míriam; Golobardes, Elisabet; Vilasís Cardona, Xavier (Journal of High Energy Physics, 2021, Vol.3, No. 99, 2021-03)
      A search for the B0s → D*±D∓ decay is performed using proton-proton collision data at centre-of-mass energies of 7, 8 and 13 TeV collected by the LHCb experiment, corresponding to an integrated luminosity ...