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Filtering by: Subject Scattering (Physics)

A comparison of effective interactions in nuclear structure and scattering

Creator:

Schmittroth, Frank Allen

Resource Type:

Dissertation
Effects of coupled atomic states on the resonance scattering of radiation

Creator:

Srivastava, Rajendra Prasad

Abstract:

The excitation and decay probabilities for resonance scattering of radiation from an atom with two coupled excited states and one ground state in an external static field are calculated as a function of time and frequency. Various oscillatory behaviors are found in all the probabilities. These oscillations depend on the...

Resource Type:

Dissertation
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
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
Optical and hydrographic observations of the Cromwell Current between 92 ̊00'west and the Galapagos Islands

Creator:

Zaneveld, J. Ronald V.

Resource Type:

Dissertation