Listar Centro de Física Fundamental (CFF) por autor "Melfo, Alejandra"
Mostrando ítems 1-18 de 18
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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 ...