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    • Contactless electrical resistance of 2D materials using a rutile resonator 

      Arcos Gutiérrez, David; Krkotic, Patrick; O'Callaghan Castellà, Juan Manuel; Pont, Montse; Ametller Congost, Lluís; Ferrer Anglada, Núria (2019-12-12)
      Article
      Accés obert
      Measuring the electrical surface resistance of 2D materials without contact can provide a method for obtaining their intrinsic characterisation. The aim of this paper is to show that a rutile dielectric resonator (RDR) can ...

    • Curs 0: preparació per als estudis a l’EEBE 

      Tornil Sin, Sebastián; Botey Cumella, Muriel; Alarcón Jordán, Marta; Alcaraz Sendra, Olga; Ametller Congost, Lluís; Bruna Escuer, Pere; Camps Anaya, Germinal; Carmona Mejías, Ángeles; Claverol Aguas, Mercè; Crespo Artiaga, Daniel; Pablo Ribas, Joan de; Barrio Casado, María del; Valle Mendoza, Luis Javier del; Encinas Bachiller, Andrés Marcos; Farran Marsà, Adriana; Florido Pérez, Antonio; Gámez López, Antonio; García Senz, Domingo; Gibert Agulló, Oriol; Ikhouane, Fayçal; Jiménez Jiménez, María José; José Pont, Jordi; Linares Alegret, Manuel; Lloveras Muntané, Pol Marcel; López López, José; Macovez, Roberto; Mas Blesa, Albert; Mitjana Riera, Margarida; Muñoz Romero, José; Pardo Soto, Luis Carlos; Periago Oliver, M. Cristina; Pineda Soler, Eloi; Pradell Cara, Trinitat; Ruiz Ordóñez, Magda; Sala Cladellas, Glòria; Soler Turu, Lluís; Tamarit Mur, José Luis; Vendrell Villafruela, Xavier; Zanuy Gomara, David (Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2022-05)
      Article
      Accés obert
      Aquest article presenta el desenvolupament i primers resultats d'ús d'un conjunt de cursos virtuals que pretenen proporcionar uns coneixements inicials bàsics de Matemàtiques, Física i !ímica als estudiants que accedeixen ...

    • Forward backward asymmetries of lepton pairs in events with a large transverse momentum jet at hadron colliders 

      Águila López, Francisco del; Ametller Congost, Lluís; Talavera Sánchez, Pedro (2002-10)
      Article
      Accés obert
      We discuss forward-backward charge asymmetries for lepton-pair production in association with a large-transverse-momentum jet at hadron colliders. The lepton charge asymmetry relative to the jet direction AjFB gives a new ...

    • High-frequency contactless characterization of 2D materials. Graphene, WS2 

      Arcos Gutiérrez, David; Nuño Gómez, Daniel-Juan; Ametller Congost, Lluís; Ferrer Anglada, Núria (2020-12)
      Article
      Accés obert
      The electrical conductivity of two-dimensional (2D) materials without any electrical contact can be obtained using two different methods: the terahertz time domain spectroscopy (THz-TDS) method, in the range from GHz up ...

    • Insights into Q2Qbar2 states from an effective perspective 

      Ametller Congost, Lluís; Talavera Sánchez, Pedro (American Physical Society, 2015-10-07)
      Article
      Accés obert
      We discuss the two-photon coupling of the lightest scalar meson on the basis of an extension of χPT. Using low-energy data on the pion form factor and the γγ→π+π−(π0π0) cross sections as inputs, we find Γ(σ→γγ)≅0.126  keV. ...

    • Lepton flavor changing Higgs decays in the littlest Higgs model with T-parity 

      del Aguila Jiménez, Francisco; Ametller Congost, Lluís; Illana, José Ignacio; Santiago, Jose; Talavera, Pere; Vega-Morales, Roberto (2017-08-08)
      Article
      Accés obert
      We calculate loop induced lepton flavor violating Higgs decays in the Littlest Higgs model with T-parity. We find that a finite amplitude is obtained only when all contributions from the T-odd lepton sector are included. ...

    • Lowest resonance in QCD from low-energy data 

      Ametller Congost, Lluís; Talavera Sánchez, Pedro (American Physical Society, 2014-05-12)
      Article
      Accés obert
      We worked out a generalization of su(2) chiral perturbation theory, including a perturbative singlet scalar field. The approach suggests that the prediction for sensible low-energy observables converge faster towards ...

    • Optoelectronic characterization of 2D graphene-based heterostructures: Gr/MoS2 and Gr/WS2 

      Arcos Gutiérrez, David; Nuño Gómez, Daniel-Juan; Ametller Congost, Lluís; Ferrer Anglada, Núria (2023-07-26)
      Article
      Accés restringit per política de l'editorial
      In this research, it is aimed to obtain and to compare the electrical conductivity and the transmittance of two graphene (Gr)-based heterostructures: Gr/WS2 and Gr/MoS2 on quartz. Raman spectroscopy is used to analyze the ...

    • Pràctiques de Laboratori 

      Canales Gabriel, Manel; Trullàs Simó, Joaquim; Ametller Congost, Lluís; Llanta Salleras, Estanislao; Rey Oriol, Rosendo; Casulleras Ambrós, Joaquín; Mazzanti Castrillejo, Fernando Pablo; Boronat Medico, Jordi; Martí Rabassa, Jordi; Guàrdia Manuel, Elvira; Sesé Castel, Gemma; Pastor Satorras, Romualdo (Universitat Politècnica de Catalunya, 2015)
      Pràctica
      Accés obert

    • The full lepton flavor of the littlest Higgs model with T-parity 

      del Aguila Jiménez, Francisco; Ametller Congost, Lluís; Illana, José Ignacio; Santiago, Jose; Talavera, Pere; Vega-Morales, Roberto (Springer, 2019-07-25)
      Article
      Accés obert
      We re-examine lepton flavor violation (LFV) in the Littlest Higgs model with T-parity (LHT) including the full T-odd (non-singlet) lepton and Goldstone sectors. The heavy leptons induce two independent sources of LFV ...