Examinando por Autor "Martín Contreras, Miguel Angel"

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  • Miniatura
    Ítem
    Properties of protons in nuclear medium with AdS/QCD model with a quadratic modified dilaton
    (Springer, 2021) Vega, Alfredo; Martín Contreras, Miguel Angel
    A modified version of the usual AdS/QCD soft wall model with quadratic dilaton is presented to study proton properties inside the atomic nucleus. We suggest a dilaton that catches the variation of the proton mass inside nuclei, called nuclear dilaton, and with this, we calculated electromagnetic form factors and magnetic moments for protons inside the atomic nucleus.
  • Miniatura
    Ítem
    Proton and neutron form factors from deformed gravity/gauge duality
    (Elsevier, 2021) Martín Contreras, Miguel Angel; Folco Capossoli, Eduardo; Li, Danning; Vega, Alfredo; Boschi-Filho, Henrique
    In this work we study the electric and magnetic Sachs form factors for proton and neutron by using a deformed gravity/gauge model. We describe holographically baryons as well as gauge bosons which are ruled by the parameters and , associated with confinement and kinematical energy scales, respectively. Then, we construct the interaction action and calculate the electric and magnetic form factors for the proton and the neutron, and their electromagnetic sizes. The obtained results are compatible with those found in the literature from experimental and theoretical data.