Navegação Centro de Física Fundamental (CFF) por autor "Melfo, Alejandra"

Itens para a visualização no momento 1-18 of 18

    • Broken symmetries in the early universe 

      Melfo, Alejandra; Senjanovic, Goran (SABER ULA, 2005-01-06)
      Broken symmetries in the early universe (Melfo, Alejandra; Senjanovic, Goran) Abstract We give a brief review of recent results on symmetry nonrestoration at high temperature. The year is 1010 B.C. All the ...

    • Bubble collisions and defect formation in a damping environment 

      Melfo, Alejandra; Ferrera, Antonio (SABER ULA, 2005-01-06)
      Bubble collisions and defect formation in a damping environment (Melfo, Alejandra; Ferrera, Antonio) Abstract Within the context of a first-order phase transition in the early Universe, we study the collision process ...

    • Close to the edge: hierarchy in a double braneworld 

      Guerrero, Rommel; Pantoja, Nelson; Melfo, Alejandra; Rodriguez, Omar (SABER ULA, 2007-03-19)
      Close to the edge: hierarchy in a double braneworld. (Guerrero, Rommel; Melfo, Alejandra; Pantoja, Nelson and Rodriguez, R. Omar) Abstract We show that the hierarchy between the Planck and the weak scales can follow ...

    • Fermion localization on thick branes 

      Melfo, Alejandra; Pantoja, Nelson; Tempo, José David (SABER ULA, 2007-03-19)
      Fermion localization on thick branes. (Melfo, Alejandra; Pantoja, Nelson and Tempo, José David) Abstract We consider chiral fermion confinement in scalar thick branes, which are known to localize gravity, coupled ...

    • Formation of vortices in first order phase transitions 

      Melfo, Alejandra; Perivolaropoulos, Leandros (SABER ULA, 2003-12-05)
      Formation of vortices in first order phase transitions (Melfo, Alejandra; Perivolaropoulos, Leandros) Abstract Using a toy model Lagrangian we investigate the formation of vortices in first order phase transitions. ...

    • Información Investigador: Melfo Prada, Alejandra Lucero 

      Melfo, Alejandra (2008-09-19)
      Resumen Curricular Áreas de Interés: Física de partículas, Cosmología, Defectos Topológicos. Estudios realizados: "International School for Advanced Studies", SISSA-ISAS, Trieste, Italia. (1993-1997) (Ph. ...

    • Intermediate scales in supersymmetric GUTs: 

      Melfo, Alejandra; Aulakh, Charanjit S.; Rasin, Andrija; Senjanovic, Goran; Bajc, Borut (SABER ULA, 2003-12-05)
      Intermediate scales in supersymmetric GUTs: The survival of the fittest (Melfo, Alejandra; Aulakh, Charanjit S.; Bajc, Borut; Rasin, Andrija; Senjanovic, Goran) Abstract We show that intermediate scales in ...

    • Localizing gravity on exotic thick 3-branes 

      Pantoja, Nelson; Melfo, Alejandra; Castillo Felisola, Oscar; Ramírez, Alba (SABER ULA, 2007-03-19)
      Localizing gravity on exotic thick 3-branes Castillo-Felisola, Oscar; Melfo, Alejandra; Pantoja, Nelson; Ramírez, Alba Abstract We consider localization of gravity on thick branes with a ...

    • Minimal supersymmetric left-right model 

      Melfo, Alejandra; Aulakh, Charanjit S.; Senjanovic, Goran (SABER ULA, 2005-01-06)
      Minimal supersymmetric left-right model (Melfo, Alejandra; Aulakh, Charanjit S.; Senjanovic, Goran) Abstract We construct the truly minimal left-right symmetric model by utilizing only the fields dictated by ...

    • Nonrestoration of spontaneously broken P, CP and PQ at high temperature 

      Melfo, Alejandra; Senjanovic, Goran; Dvali, Gia (SABER ULA, 2005-01-06)
      Nonrestoration of spontaneously broken P, CP and PQ at high temperature (Melfo, Alejandra; Dvali, Gia; Senjanovic, Goran) Abstract The possibility of P and CP violation at high temperature in models where these ...

    • On supersymmetry at high temperature 

      Melfo, Alejandra; Senjanovic, Goran; Bajc, Borut (SABER ULA, 2005-01-06)
      On supersymmetry at high temperature (Melfo, Alejandra; Bajc, Borut; Senjanovic, Goran) Abstract While it is possible to find examples of field theories with a spontaneously broken symmetry at high temperature, in ...

    • Radiating, slowly rotating bodies in general relativity 

      Melfo, Alejandra; Núñez, Luis; Patiño, Alberto; Herrera Cometta, Luis (SABER ULA, 2006-01-26)
      Radiating, slowly rotating bodies in general relativity (Melfo, Alejandra; Núñez, Luis; Patiño, Alberto; Herrera, Luis) Abstract We propose a method to obtain axisymmetric, dynamic solutions to the Einstein equations ...

    • See-saw and supersymmetry or exact R-parity 

      Melfo, Alejandra; Aulakh, Charanjit S.; Rasin, Andrija; Senjanovic, Goran (SABER ULA, 2005-01-06)
      See-saw and supersymmetry or exact R-parity (Melfo, Alejandra; Aulakh, Charanjit S.; Rasin, Andrija; Senjanovic, Goran) Abstract We show how the renormalizable see-saw mechanism in the context of supersymmetry and ...

    • Self-gravitating domain walls and the thin-wall limit 

      Pantoja, Nelson; Melfo, Alejandra; Guerrero, Rommel (SABER ULA, 2005-05-25)
      Self-gravitating domain walls and the thin-wall limit Guerrero, Rommel, Melfo, Alejandra; Pantoja, Nelson Abstract We analyse the distributional thin wall limit of self gravitating scalar ...

    • SO(10) theory of R-parity and neutrino mass 

      Melfo, Alejandra; Aulakh, Charanjit S.; Rasin, Andrija; Senjanovic, Goran; Bajc, Borut (SABER ULA, 2005-01-06)
      SO(10) theory of R-parity and neutrino mass (Melfo, Alejandra; Aulakh, Charanjit S.; Bajc, Borut; Rasin, Andrija; Senjanovic, Goran) Abstract We study the Higgs sector of a SO(10) grand unified theory which predicts ...

    • Supersymmetry and large-scale left-right symmetry 

      Melfo, Alejandra; Aulakh, Charanjit S.; Rasin, Andrija; Senjanovic, Goran (SABER ULA, 2005-01-06)
      Supersymmetry and large-scale left-right symmetry (Melfo, Alejandra; Aulakh, Charanjit S.; Rasin, Andrija; Senjanovic, Goran) Abstract We show that the low energy limit of the minimal supersymmetric Left-Right models ...

    • Symmetry nonrestoration at high temperature and the monopole problem 

      Melfo, Alejandra; Senjanovic, Goran; Dvali, Gia (SABER ULA, 2005-01-06)
      Symmetry nonrestoration at high temperature and the monopole problem (Melfo, Alejandra; Dvali, Gia; Senjanovic, Goran) Abstract We investigate the high temperature behavior of SU(5) in its minimal version. We show ...

    • Thick domain wall spacetimes with and without reflection symmetry 

      Pantoja, Nelson; Melfo, Alejandra; Skirzewski, Aureliano (SABER ULA, 2005-05-25)
      Thick domain wall spacetimes with and without reflection symmetry Melfo, Alejandra; Pantoja, Nelson; Skirzewski, Aureliano Abstract We show that the spacetimes of domain wall solutions to ...