Zobrazeno 1 - 10
of 15
pro vyhledávání: '"H. S. Sherif"'
Autor:
I. R. Blokland, H. S. Sherif
Publikováno v:
Nuclear Physics A. 694:337-350
We develop a relativistic model for incoherent eta-photoproduction on nuclei. The elementary process is described using an effective Lagrangian containing photons, nucleons, the S11(1535) and D13(1520) nucleon resonances, and rho, omega, and eta meso
Autor:
G M Lotz, H S Sherif
Publikováno v:
Canadian Journal of Physics. 79:1223-1230
The charge-exchange contribution to photoneutron emission is calculated in a relativistic model. The emission is regarded as a two-step process consisting of a direct electromagnetic knockout of a proton followed by a (p,n) charge-exchange reaction.
Autor:
H. S. Sherif, I. R. Blokland
Publikováno v:
AIP Conference Proceedings.
We present and discuss the results of our calculations using a relativistic model for incoherent η-photoproduction on nuclei. We find that the incoherent cross sections are dominated by contributions from the S11(1535) and D13(1520) resonances. We f
Publikováno v:
Journal of medical entomology. 27(4)
Viral antigen was detected in the cytoplasm and in associated membranes of salivary gland acinus cells by indirect immunofluorescence and immunoperoxidase staining. Viral ribonucleoproteins (indicated histochemically by presence of pyroninophilic gra
Autor:
S. W. L. Leung, H. S. Sherif
Publikováno v:
Canadian Journal of Physics. 56:1116-1121
The conventional optical model potential is used to analyze the p + 4He elastic scattering data in the energy range 100–1150 MeV. Both differential cross section and polarization data are reasonably fitted. The behavior of the volume integral of th
Autor:
N. H. S. Sherif, Stephen R Reid
Publikováno v:
Journal of Mechanical Engineering Science. 18:87-94
A theory is developed for calculating the wavelength of the waves produced at the welded interface between two identical and explosively projected (flyer) plates using the so-called symmetric welding arrangement. The theory appeals to the analogy bet
Autor:
E. D. Cooper, H. S. Sherif
Publikováno v:
Physical Review Letters. 47:818-821
The amplitude for the ( p,..pi../sup +/) reaction is calculated in a relativistic one-nucleon model with use of a distorted-wave Born-approximation approach. The nucleon continuum and bound-state wave functions are solutions of Dirac equations with a
Autor:
H. S. Sherif
Publikováno v:
Physical Review C. 19:1649-1654
Publikováno v:
Physical Review C. 27:2759-2770
The amplitude for elastic scattering of protons on a light nucleus is treated in a manner which takes into account the indistinguishability of the incident and target protons. We propose a simple model in which the direct and knockout amplitudes are
Autor:
H. S. Sherif
Publikováno v:
Experientia Supplementum ISBN: 9783034855075
The existence of spin-spin terms in the optical potential for nucleons scattered on targets with non-zero spin has been the subject of investigation for many years. The presence of spin-spin and tensor terms in the nucleon-nucleon interaction leads o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ceb10196d38038d6f6e45818fc9f7817
https://doi.org/10.1007/978-3-0348-5506-8_17
https://doi.org/10.1007/978-3-0348-5506-8_17