scholarly journals Dual model form factors and pion photoproduction

1985 ◽  
Vol 31 (1) ◽  
pp. 283-284 ◽  
Author(s):  
Charles Picciotto
Keyword(s):  
Form Factors ◽  
Pion Photoproduction ◽  
Dual Model ◽  
Model Form

Dual model form factors and pion photoproduction

1985 ◽  
Vol 31 (1) ◽  
pp. 285-286
Author(s):  
C. A. Dominguez
Keyword(s):  
Form Factors ◽  
Pion Photoproduction ◽  
Dual Model ◽  
Model Form

Form factors and gauge invariance in pion photoproduction

1992 ◽  
Vol 45 (5) ◽  
pp. 2511-2513 ◽  
Author(s):  
R. L. Workman ◽  
H. W. L. Naus ◽  
S. J. Pollock
Keyword(s):  
Gauge Invariance ◽  
Form Factors ◽  
Pion Photoproduction

scholarly journals Holonomy of the Ising model form factors

2006 ◽  
Vol 40 (1) ◽  
pp. 75-111 ◽  
Author(s):  
S Boukraa ◽  
S Hassani ◽  
J-M Maillard ◽  
B M McCoy ◽  
W P Orrick ◽  
...  
Keyword(s):  
Ising Model ◽  
Form Factors ◽  
Model Form

Low-energy pion photoproduction from p-shell nuclei

1990 ◽  
Vol 68 (11) ◽  
pp. 1270-1278 ◽  
Author(s):  
C. Bennhold ◽  
L. Tiator ◽  
L. E. Wright
Keyword(s):  
Form Factors ◽  
Pion Photoproduction ◽  
Binding Energies ◽  
Wave Functions ◽  
Low Energy ◽  
Delta Resonance ◽  
Transverse Electromagnetic ◽  
Coulomb Effects ◽  
Correction Terms ◽  
Space Approach

Low-energy pion photoproduction off 6Li, 10B, and 14N has been reinvestigated in a DWIA framework that includes a number of improvements neglected in previous analyses. The production operator is based on Feynman diagrams and includes correction terms of order p2/M2 and higher. An s-channel delta resonance term is included with both longitudinal and transverse electromagnetic couplings. Rather than using on harmonic oscillator for the nucleon orbitals we employ Woods–Saxon wave functions that have been adjusted to fit electron-scattering form factors and single-particle binding energies. Furthermore, we include the Coulomb potential without approximation in our momentum-space approach. Using more realistic wave functions and including corrections to the production amplitude that have been neglected before leads to considerable improvement in the case of 10B and 14N when compared with existing data. The Coulomb effects are shown to change the cross section by about 30% close to threshold but are negligible at higher energies.

The ABC effect and chiral-bag-model form factors

1984 ◽  
Vol 426 (3) ◽  
pp. 599-605 ◽  
Author(s):  
G. Kälbermann ◽  
J.M. Eisenberg
Keyword(s):  
Form Factors ◽  
Bag Model ◽  
Model Form

Shell-Model Form Factors for theZr90(p, p′)Reaction

1967 ◽  
Vol 154 (4) ◽  
pp. 1206-1206 ◽  
Author(s):  
M. B. Johnson ◽  
L. W. Owen ◽  
G. R. Satchler
Keyword(s):  
Shell Model ◽  
Form Factors ◽  
Model Form
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