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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::419d3a88b3d93ca387e92a7aaa53edf9
https://doi.org/10.1016/s0375-9474(01)00989-7
https://doi.org/10.1016/s0375-9474(01)00989-7
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.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba6aee8ff224883315e3d987a6a4cdc8
https://doi.org/10.1139/p01-069
https://doi.org/10.1139/p01-069
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78fbcfdce50abc2be0705f594f5da46c
https://doi.org/10.1063/1.1345302
https://doi.org/10.1063/1.1345302
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aaf02bbb837be7cd3ab4d3a09dc037d8
https://pubmed.ncbi.nlm.nih.gov/2388240
https://pubmed.ncbi.nlm.nih.gov/2388240
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::67691d7114a3cff4afe92e00c231b280
https://doi.org/10.1139/p78-146
https://doi.org/10.1139/p78-146
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c403e65b7f9c62c6f5e1acb32186d2e4
https://doi.org/10.1243/jmes_jour_1976_018_016_02
https://doi.org/10.1243/jmes_jour_1976_018_016_02
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1bd27eb6a54d4537d0634c7cf31af6a9
https://doi.org/10.1103/physrevlett.47.818
https://doi.org/10.1103/physrevlett.47.818
Autor:
H. S. Sherif
Publikováno v:
Physical Review C. 19:1649-1654
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1016719cd28714199d28a00477222f3
https://doi.org/10.1103/physrevc.19.1649
https://doi.org/10.1103/physrevc.19.1649
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8832e897ba06f847c44345d10e903950
https://doi.org/10.1103/physrevc.27.2759
https://doi.org/10.1103/physrevc.27.2759
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
