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  • 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:
    nucleon-nucleon interaction. Solid lines represent external and intermediate nucleons. Dashed lines

  • Target fragmentation in the interaction of 12-16 MEV/NUCLEON ³²S with ¹⁶⁵HO

    Creator:
    Casey, Coreen
    Abstract:
    The target fragment production cross sections, angular distributions, and range distributions have been measured for the interaction of 12-16 A MeV³² S with ¹⁶⁵Ho. The fragment isobaric yield distribution and the moving frame angular distributions have been deduced from the data. Symmetry properties of the moving frame angular distributions have...
    Resource Type:
    Masters Thesis
    Full Text:
    Interaction of 12-16 MeV/nucleon 325 with 165B.9. (Redacted for Privacy_ Abstract approved:_3 C. W. DeKock

  • 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:
    Self-consistent relativistic model for pion-nucleon

  • Pion-nucleon interactions in the chiral color dielectric model

    Creator:
    Lu, Dinghui
    Resource Type:
    Dissertation
    Full Text:
    Abstract approved. Rubin H. Landau The pion-nucleon interaction is studied in the vector-coupling