Author: Feroze Duggan
Publisher:
ISBN:
Category : Elastic scattering (Physics)
Languages : en
Pages : 550
Book Description
A Redevelopment of the Nucleon and Light-ion Nuclear Optical Model
Author: Feroze Duggan
Publisher:
ISBN:
Category : Elastic scattering (Physics)
Languages : en
Pages : 550
Book Description
Publisher:
ISBN:
Category : Elastic scattering (Physics)
Languages : en
Pages : 550
Book Description
Development of Global Medium-energy Nucleon-nucleus Optical Model Potentials
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 6
Book Description
The authors report on the development of new global optical model potentials for nucleon-nucleus scattering at medium energies. Using both Schroedinger and Dirac scattering formalisms, the goal is to construct a physically realistic optical potential describing nucleon-nucleus elastic scattering observables for a projectile energy range of (perhaps) 20 meV to (perhaps) 2 GeV and a target mass range of 16 to 209, excluding regions of strong nuclear deformation. They use a phenomenological approach guided by conclusions from recent microscopic studies. The experimental database consists largely of proton-nucleus elastic differential cross sections, analyzing powers, spin-rotation functions, and total reaction cross sections, and neutron-nucleus total cross sections. They will use this database in a nonlinear least-squares adjustment of optical model parameters in both relativistic equivalent Schroedinger (including relativistic kinematics) and Dirac (second-order reduction) formalisms. Isospin will be introduced through the standard Lane model and a relativistic generalization of that model.
Publisher:
ISBN:
Category :
Languages : en
Pages : 6
Book Description
The authors report on the development of new global optical model potentials for nucleon-nucleus scattering at medium energies. Using both Schroedinger and Dirac scattering formalisms, the goal is to construct a physically realistic optical potential describing nucleon-nucleus elastic scattering observables for a projectile energy range of (perhaps) 20 meV to (perhaps) 2 GeV and a target mass range of 16 to 209, excluding regions of strong nuclear deformation. They use a phenomenological approach guided by conclusions from recent microscopic studies. The experimental database consists largely of proton-nucleus elastic differential cross sections, analyzing powers, spin-rotation functions, and total reaction cross sections, and neutron-nucleus total cross sections. They will use this database in a nonlinear least-squares adjustment of optical model parameters in both relativistic equivalent Schroedinger (including relativistic kinematics) and Dirac (second-order reduction) formalisms. Isospin will be introduced through the standard Lane model and a relativistic generalization of that model.
Recent Results in the Development of a Global Medium-energy Nucleon-nucleus Optical-model Potential
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
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 necessary 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 27Al, 56Fe, and 2°8Pb. Medium-energy optical-model potentials for complex projectiles are briefly discussed in an appendix. 7 refs., 20 figs.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
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 necessary 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 27Al, 56Fe, and 2°8Pb. Medium-energy optical-model potentials for complex projectiles are briefly discussed in an appendix. 7 refs., 20 figs.
Subjects of Dissertations, Theses and Published Works Presented by Successful Candidates at Examinations for Higher Degrees
Author: University of London
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 82
Book Description
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 82
Book Description
BLLD Announcement Bulletin
Author: British Library. Lending Division
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 654
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 654
Book Description
Analytic Optical Potentials for Nucleon-nucleus Nucleus-nucleus Collisions Involving Light and Medium Nuclei
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 28
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 28
Book Description
On the Optical Model for the Nucleon-nucleus Scattering
Author: Janusz Dąbrowski
Publisher:
ISBN:
Category :
Languages : en
Pages : 18
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 18
Book Description
Derivation of a Correction to the Nuclear Optical Model Potential Depth for a Spin-dependent Nucleon Interaction
Author: Murrell Elroy Lewis
Publisher:
ISBN:
Category : Nuclear optical models
Languages : en
Pages : 142
Book Description
Publisher:
ISBN:
Category : Nuclear optical models
Languages : en
Pages : 142
Book Description
Theses and Dissertations Accepted for the Degrees of M. Phil. and Ph.D.
Author: University of London
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 372
Book Description
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 372
Book Description
The BRITS Index: Title index
Author: British Theses Service
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 1158
Book Description
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 1158
Book Description