Zobrazeno 1 - 10
of 24
pro vyhledávání: '"James F. Walker"'
Autor:
James F. Walker
Publikováno v:
Italian Culture. 18:125-140
Publikováno v:
Health services reports. 88(8)
Publikováno v:
41st Aerospace Sciences Meeting and Exhibit.
Publikováno v:
Nuclear Physics A. 306:447-467
A field-theoretic treatment of the pp→d π + reaction is presented. Qualitative agreement with the experimental total cross sections and angular distributions is obtained in a model which uses neither a fundamental cutoff in the π-nucleon interact
Publikováno v:
Nuclear Physics A. 242:365-375
The fully off-shell t -matrix elements of a local neutron optical potential are compared with those of separable representations for this potential. Two separable forms, each of which include the effects of three t -matrix poles per channel, are used
Publikováno v:
Nuclear Physics A. 240:189-194
Excellent fits to on-shell t -matrix elements of a realistic local potential are obtained using a single-term energy-dependent separable potential in each of five channels. The comparison of half-off-shell t -matrix elements is also very favorable. T
Publikováno v:
Physical Review Letters. 33:508-511
Publikováno v:
Nuclear Physics A. 244:125-133
States of the A = 211 isobars are described as three particles coupled to each other and to a vibrating 208 Pb core. Model parameters are extracted from available data on A = 209, 210 isobars, but it is necessary to postulate a form for the two-body
Publikováno v:
Nuclear Physics A. 331:464-476
The microscopic two-body effective Hamiltonian equation satisfied by the two-nucleon distribution function needed for two-particle transfer processes is derived. The usual approximations made in order to obtain a partial solution to this equation are
Publikováno v:
Nuclear Physics A. 340:61-75
Contributions to the form factor for the reaction 42 Ca(p, t) 40 Ca deriving from hole and continuum state admixtures in the two-nucleon distribution function are studied by expanding the solution of the microscopic two-body hamiltonian equation in a