Search Constraints

Start Over
Filtering by: Advisor Proteau, Philip J. Remove constraint Advisor: Proteau, Philip J. Academic Affiliation Physics Remove constraint Academic Affiliation: Physics

Search Results

  • Brueckner theory of nuclear matter

    Creator:
    Fuchs, Martin B.
    Resource Type:
    Masters Thesis
    Full Text:
    . Title: Brueckner Theory of Nuclear Matter Abstract approved: Redacted for Privacy Philip J. Siemens

  • Self-consistent relativistic model for pion-nucleon scattering

    Creator:
    Wu, Huachuan
    Abstract:
    We introduce a relativistic model for pion-nucleon scattering which includes an elementary delta dressed by its decay. Crossing-symmetric single-particle exchange is augmented by parametrized multiple-scattering interactions, with covariant sideways form factors in both 3- and 4-field vertices. Causality is enforced by dispersion relations. Unitary fits to observed on-shell amplitudes are...
    Resource Type:
    Dissertation
    Full Text:
    Abstract approved: Philip J. Siemens We introduce a relativistic model for pion-nucleon scattering which

  • Pion content in nucleon using finite renormalization scheme with spectral amplitude separation of ghosts

    Creator:
    Symmes, Jonathan P.
    Abstract:
    We develop a technique to express the nucleon pole strength and bare mass in terms of renormalized quantities. Starting from a general unrenormalized self energy we determine the bare mass and the pole strength. For determining the pion content of the nucleon we discuss the leading renormalization loop. We relate...
    Resource Type:
    Dissertation
    Full Text:
    approved: Philip J. Siemens We develop a technique to express the nucleon pole strength and bare mass in

  • Spatial evaluation of Lyapunov exponents in Hamiltonian systems

    Creator:
    Stanley, Paul Elliott
    Abstract:
    A new method for evaluating the Lyapunov exponent for a Hamiltonian system involves a spatial evaluation, rather than a numerical time integration. The introduction of a novel vector field to the phase space allows the Lyapunov exponent to be expressed in a form that does not involve time. The Lyapunov...
    Resource Type:
    Dissertation
    Full Text:
    Systems Abstract approved. Philip J. Siemens A new method for evaluating the Lyapunov exponent for a

  • Contribution from two on-shell pion exchange in nucleon-nucleon scattering

    Creator:
    Kheaomaingam, Nupan
    Abstract:
    We used recent phenomenological form factors to calculate the effect of on-shell two-pion exchange in nucleon-nucleon scattering below the two-pion production threshold. As expected, the contributions of partial wave amplitudes are all negligible. We also noticed that the relativistic spin-operator decomposition of the scattering amplitude is not unique at certain...
    Resource Type:
    Dissertation
    Full Text:
    in Nucleon-Nucleon Scattering Abstract approved: Philip J. Siemens We used recent

  • Unusual quantum effects in scattering wave functions of two-dimensional cage potentials

    Creator:
    Rowe, Kirk, 1966-
    Abstract:
    We exhibit long-lived resonances in scattering from two-dimensional soft cage potentials comprised of three and four Gaussian peaks. Specific low-energy resonances with very narrow width are shown to correspond to classical multiple-reflection events. These states have much larger probability densities inside the cage than outside and mimic bound states in...
    Resource Type:
    Dissertation
    Full Text:
    Scattering Wave functions of Two-Dimensional Cage Potentials. Abstract approved: Philip J. Siemens We