62ª Defesa de Dissertação de Mestrado, de Jhon Andersson Rosero Gil

62ª Defesa de Dissertação de Mestrado, de Jhon Andersson Rosero Gil

 

Data Defesa:  10/04/2014 - Horário: 14h

Local: Auditório 801A -8º andar - Bloco B

 

Título:  Decaimento eletrofraco da matéria de quarks no interior das estrelas de nêutrons

 

 

Resumo:

In this work we study the phase transition from hadronic to quark matter in neutron stars and  proto-neutron stars. The transition begins with the deconfinement of hadrons, which is driven by strong interactions, and is followed by the weak interaction decay of quarks until quark matter reaches chemical equilibrium. We calculate the rate of all the relevant weak interaction processes in hot and dense quark matter and solve the Boltzmann equation in order to derive the decay timescale and the neutrino emissivity.  We have systematically taken into account the effect of strong interactions perturbatively to order $\alpha_c$ and the effect of finite temperature and strange quark mass. 

We show that the transition raises the temperature of quark matter up to 60-70 MeV and chemical equilibrium is attained in a timescale of a nanosecond.  We find that the neutrino emissivity per baryon is very large, 10^{10} - 10^{12} MeV/ s. We analyze the astrophysical consequences of the results. 

 

Candidato: Jhon Andersson Rosero Gil

Orientador: Prof. Dr. German Lugones

  

Banca Examinadora

Titulares

  • Orientador: Prof. Dr. German Lugones - UFABC
  • Prof. Dr. Laura Paulucci Marinho - UFABC
  • Prof. Dr. Ernesto Kemp - UNICAMP

Suplentes

  • Prof. Dr. Alex Gomes Dias - UFABC
  • Prof. Dr. Orlando Luis Goulart Peres - UNICAMP

 

PUBLICAÇÕES RECENTES

Information content in F(R) brane models with nonconstant curvature, Phys. Rev. D 92, 126005 (2015)


Thermal rectification in anharmonic chains under an energy-conserving noise, Phys. Rev. E 92, 062120 (2015)


Multiband electronic characterization of the complex intermetallic cage system Y1−xGdxCo2Zn20, Phys. Rev. B 92, 214414 (2015)


Irreversibility and the Arrow of Time in a Quenched Quantum System, Phys. Rev. Lett. 115, 190601 (2015)


Practical security analysis of two-way quantum-key-distribution protocols based on nonorthogonal states, Phys. Rev. A 92, 052317 (2015)


Tight bound on the trace distance between a realistic device with partially indistinguishable bosons and the ideal Boson Sampling, Phys. Rev. A 91, 063842 (2015)


Hierarchically structured nanowires on and nanosticks in ZnO microtubes, Scientific Reports 5, 15128 (2015)


Microtubes decorated with nanowires, Applied Physics Letters 106, 213104 (2015)


Relaxation dynamics of deeply supercooled confined water in L,L-diphenylalanine micro/nanotubes, Phys. Chem. Chem. Phys. 17, 32126 (2015)


Compact stars with a small electric charge: the limiting radius to mass relation and the maximum mass for incompressible matter, Euro. Phys. J. C, 75, 76 (2015)


Charged black holes in expanding Einstein-de Sitter universes, Classical and Quantum Gravity 32, 115004 (2015)


Numerical relativity simulations of neutron star merger remnants using conservative mesh refinement, Phys. Rev. D 91, 124041 (2015)


DFT+U Simulation of the Ti_4O_7−TiO_2 Interface, Phys. Rev. Applied 3, 024009 (2015)


Partial indistinguishability theory for multiphoton experiments in multiport devices, Phys. Rev. A 91, 013844 (2015)


Coherent measurements in quantum metrology, New Journal of Physics 17, 023057 (2015)


Classical Tests of General Relativity: Brane-World Sun from Minimal Geometric Deformation, Europhysics Letters 110, 40003 (2015)


Configurational Entropy for Travelling Solitons in Lorentz and CPT Breaking Systems, Annals of  Physics 359, 198 (2015)


Thick Braneworlds and the Gibbons-Kallosh-Linde No-go Theorem in the Gauss-Bonnet Framework, Europhysics Letters 110, 20004 (2015)


Questing for Algebraic Mass Dimension One Spinor Fields, European  Physical Journal C 75 (2015) 266


D-oscillons in the standard model extension, Phys. Rev. D 91, 125021 


Non-Markovian qubit dynamics in a circuit-QED setupPhys. Rev. A 91, 022122


Cavity-aided quantum parameter estimation in a bosonic double-well Josephson junctionPhys. Rev. A 91, 033631 (2015)


Thermal transport in out-of-equilibrium quantum harmonic chainsPhys. Rev. E 91, 042116 (2015)


Spinor Fields Classification in Arbitrary Dimensions and New Classes of Spinor Fields on 7-Manifolds, JHEP 1502, 069 (2015)


Regular Bulk Solutions in Brane-worlds with Inhomogeneous Dust and Generalized Dark Radiation, Adv. High Energy Phys. 2015, 59268 (2015)


Holographic Dark Energy Models and Higher Order Generalizations in Dynamical Chern-Simons Modified Gravity, Eur. Phys. J. C 75, 44 (2015)


Spherically symmetric thick branes cosmological evolution, Gen. Rel. Grav. 47, 1840 (2015).

Contato

Endereço Postal // Postal Address

Programa de Pós-Graduação em Física
Universidade Federal do ABC (UFABC)
Campus Santo André, Bloco B, 8º andar.
Rua Santa Adélia, 166, 09210-170, Santo André, SP, Brasil
 

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