Navegação Mestrado em Física. por título

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  • COSTA, F. S. M.; http://lattes.cnpq.br/8938378819014229; COSTA, Felipe Sérvulo Maciel. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2017-11)
    About twenty years ago, two groups of researchers studying the apparent brightness of type Ia super nova e (SNe Ia), independently discovered that the current expansion of the universe is accelerated. This discovery ...
  • COLAÇO, L. R.; http://lattes.cnpq.br/2419513658334819; COLAÇO, Leonardo Ribeiro. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2016)
    The most common accepted cosmological theories are base don the assumption that the fundamental constants of nature, suchas the gravitational constant G, the new structure constant α, and others, are infact constant. Thus, ...
  • SOUZA, G. B.; http://lattes.cnpq.br/5527455239818303; SOUZA, Gilvan Bonfim e. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2017-02)
    In this work,we compute some phenomenological bounds for the electromagnetic and massive gravitational high-derivative extensions supposing that it is possible to have an astrophysical process that generates simultaneously ...
  • SANTOS, P. S.; http://lattes.cnpq.br/7012810287403197; SANTOS, Priscila da Silva. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2015-03-27)
    In This study we analyzes the gravity uctuations in a topological defect, domain wall type, coupled to a four-dimensional gravity on a 3-brane in Minkowski space (M4) or anti de Sitter (AdS4). Introduced the concept of ...
  • LEITE, É. V. B.; http://lattes.cnpq.br/5888145516484069; LEITE, Érico Vinicius Bezerra. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2014-12-18)
    In our work, we study systems of ordinary real scalar fields. We analyze the static configurations, which lead us to nonlinear second order differential equations. The solutions of these equations, called defects, may have ...
  • ORDONHO, R. F.; http://lattes.cnpq.br/3448527835893630; ORDONHO, Renato Ferreira. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2021-01-29)
    General Relativity has been very well tested since its formulation. However, with the evolution of observations in Cosmology, discrepancies between observations and theoretical calculations arised. These discrepancies ...
  • BARBOSA, S. A.; http://lattes.cnpq.br/8547018673829318; BARBOSA, Suzana Araújo. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2013)
    It is known that to ensure a better outcome in the treatment of patients in Radiotherapy, there should be a constancy of the physical parameters as well as a verification of the worked planning system. The following work ...
  • MENSAH-OPOKU, M.; http://lattes.cnpq.br/9896759744219323; MENSAH-OPOKU, Maxwell. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2017-09-01)
    This work applies a new procedure to determine analytical hybrid braneworld models. It is constructed via three-field models coupled with gravity in a (4+1) dimensional space-time which in general is difficult to compute ...
  • LEITE, C. S. R.; http://lattes.cnpq.br/0709318596898883; LEITE, Camilla dos Santos Rodrigues. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2012-05)
    The study of the physical properties of galaxies is very important to understand the behavior of the Universe. On the other hand, one of the great challenges of the General Theory of Relativity is to nd exact solutions ...
  • SANTOS, V. C. S.; http://lattes.cnpq.br/3246941835824922; SANTOS, Vivianni Cordeiro de Sousa. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2014-09)
    Experimental data from probes and computational work are ways of detecting and measuring the concentration of dark matter in galaxies and clusters via astrophysical phenomena such as gravitational lensing, Big Bang ...
  • GUERRA, THIAGO.; http://lattes.cnpq.br/9790121811390100; GUERRA, Thiago Brito Gonçalves. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2013-02-28)
    The nanomagnetism has bccn extensively studie<l in reccnl years, due mainly to its various possibilities of applications. Enough ernphasis has becn given to the rnagnctic nanoparticlcs. ln this contexl, the present study ...
  • MELO, T. R. N. B.; http://lattes.cnpq.br/0235690747275560; MELO, Téssio Rogério Nóbrega Borja de. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2016-02)
    In this work we study two Higgs doublet models (2HDM) with extra local U (1) symmetry. We show how the U (1) symmetry can solve the problem of favor changing neutral currents, which arises in this model due to the presence ...
  • SILVA, I. A.; http://lattes.cnpq.br/7102315332585337; SILVA, Ione Almeida. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2020-05-29)
    Analytic solutions associated with nonlinear differential equations are present in the context of classical field theory. In this dissertation, we made a review covering the main concepts on one dimensional defect like ...
  • SANTOS, Maria Aparecida dos. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2014-02)
    Taking into consideration the set of di erent approaches to the Universe existent today this work focuses on standard cosmology and in ationary expansion of the said using scalar elds to describe the expansion acceleration ...
  • SANTOS, F. B. M.; http://lattes.cnpq.br/3872042232184394; SANTOS, Felipe Bruno Medeiros dos. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2019-03-15)
    In this work, we will study the properties of cosmological models with a non-minimal coupling of a scalar field with the geometry, with a screening mechanism, more specifically the symmetron mechanism, which makes the field ...
  • OLEGARIO, P. W. V.; http://lattes.cnpq.br/3066224597689395; OLEGÁRIO, Pablo Wagner Vasconcelos. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2014-09-05)
    It is a consensus that the Standard Model is not the last word in particle theory elentares because it does not answer several pertinent questions, which we can exemplify: quantization of charge, mass for neutrinos, number ...
  • SANTOS, J. S.; http://lattes.cnpq.br/2844702789704864; SANTOS, Jaiane da Silva. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2021-05-17)
    In this work, we investigate the quasinormal modes for a massive scalar field with a nonminimal coupling with gravity in the spacetime of a loop quantum black hole, known as the Self-Dual Black Hole. In this way, we have ...
  • FERREIRA, E. J. B.; http://lattes.cnpq.br/6612628477862818; FERREIRA, Éwerton Jéferson Barbosa. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2020-02-17)
    The Robert Brown (1828) observations about pollen grains random movement marked the beginning of the currently phenomenon called by Brownian Motion which to referyourself random displacement a particle perform in a ...
  • FERREIRA, D. A.; http://lattes.cnpq.br/4821269513998669; FERREIRA, Douglas Alves. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2016-07)
    In this work we study the behavior of a real scalarfield, topological defects and non-topological. Therefore we use the Bogomol’nyi-Prasad-Sommerfield method, which allows us to find the solutions for thee quations of ...
  • GOMES, F. E.; http://lattes.cnpq.br/3985351707213648; GOMES, Fábio do Egito. (BrasilCentro de Ciências e Tecnologia - CCTPÓS-GRADUAÇÃO EM FÍSICAUFCGUniversidade Federal de Campina Grande, 2009-02-13)
    In this work was investigated the occurrence of 3-4day oscillations in the 015577, O2b(0-1) and OH(6-2) mesospheric airglow emissions between January 1998 and July 2007, which have been attributed to ultra-fast Kelvin ...

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