skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: RECENT RESULTS FROM THE MICROSCOPIC SCHRODINGER OPTICAL MODEL

Abstract

No abstract prepared.

Authors:
Publication Date:
Research Org.:
Los Alamos National Lab., NM (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
784317
Report Number(s):
LA-UR-01-4530
TRN: US0111257
DOE Contract Number:
W-7405-ENG-36
Resource Type:
Conference
Resource Relation:
Conference: Conference title not supplied, Conference location not supplied, Conference dates not supplied; Other Information: PBD: 1 Jul 2001
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; OPTICAL MODELS; SCHROEDINGER PICTURE; DATA

Citation Formats

S. KARATAGLIDIS. RECENT RESULTS FROM THE MICROSCOPIC SCHRODINGER OPTICAL MODEL. United States: N. p., 2001. Web.
S. KARATAGLIDIS. RECENT RESULTS FROM THE MICROSCOPIC SCHRODINGER OPTICAL MODEL. United States.
S. KARATAGLIDIS. Sun . "RECENT RESULTS FROM THE MICROSCOPIC SCHRODINGER OPTICAL MODEL". United States. doi:. https://www.osti.gov/servlets/purl/784317.
@article{osti_784317,
title = {RECENT RESULTS FROM THE MICROSCOPIC SCHRODINGER OPTICAL MODEL},
author = {S. KARATAGLIDIS},
abstractNote = {No abstract prepared.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jul 01 00:00:00 EDT 2001},
month = {Sun Jul 01 00:00:00 EDT 2001}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share:
  • Recent developments in nucleon-nucleus scattering at intermediate energies led to a model which is entirely predictive and could produce good to excellent agreement with scattering data. Such a model is required by a number of applications: nuclear astrophysics, structure of exotic nuclei, (e,e{prime}N) studies, applied physics, to name a few. In some cases, the necessity stems from lack of relevant data, in others a need to understand the mechanism in order to study other facets of experiment. The model of nucleon-nucleus scattering developed by the Melbourne Group (recently published as a review article in Advances in Nuclear Physics) is discussedmore » as well as results obtained pertaining to the structure of exotic nuclei, and also to neutron-nucleus scattering and the structure of heavy nuclei.« less
  • Initial results are presented for the determination of a global medium-energy nucleon-nucleus phenomenological optical-model potential using a relativistic Schroedinger representation. The starting point for this work is the global phenomenological optical-model potential of Schwandt )ital et al.), which is based on measured elastic scattering cross sections and analyzing power for polarized protons ranging from 80 to 180 MeV. This potential is optimally modified to reproduce experimental proton reaction cross sections as a function of energy, while allowing only minimal deterioration in the fits to the elastic cross sections and analyzing powers. Further modifications in the absorptive potential were found necessarymore » to extrapolate the modified potential to higher energies. The final potential is converted to a neutron-nucleus potential by use of standard Lane model assumptions and by accounting approximately for the Coulomb correction. Comparisons of measured and calculated proton reaction and neutron total cross sections are presented for /sup 27/Al, /sup 56/Fe, and /sup 208/Pb. Medium-energy optical-model potentials for complex projectiles are briefly discussed in an appendix. 7 refs., 20 figs« less
  • Comparisons are made among results of calculations for intermediate-energy nucleon-nucleus scattering for {sup 12}C, {sup 16}O, {sup 40}Ca, {sup 90}Zr, and {sup 208}Pb, by use of optical potentials obtained from global Dirac phenomenology and from a microscopic Schroedinger model. Differential cross sections and spin observables for scattering from the set of five nuclei at 65 and 200 MeV have been studied to assess the relative merits of each approach. Total reaction cross sections from proton-nucleus and total cross sections from neutron-nucleus scattering have been evaluated and compared with data for those five targets in the energy range 20-800 MeV. Themore » methods of analyses give results that compare well with experimental data in those energy regimes for which the procedures are suited.« less
  • We review the NTON program, its design and its recent progress on deployment. We then focus on one aspect of our design process, namely modeling the links of the network at the physical layer.
  • The authors report results from four 1.8 m-long dipoles built as part of the Superconducting Super Collider (SSC) R and D program. Except for length, these models have the features of the SSC design, which is based on a two-layer cosine theta coil with 4cm aperture. As compared to the 17 m design length SSC dipoles, these 1.8m magnets are a faster and more economical way of testing design changes in field shape, conductor support in the coil straight-section and ends, etc. The four magnets reported here all reach fields in excess of 7.5T with little training and have excellentmore » field shape.« less