Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Salah Yaseen El-Bakry"'
Publikováno v:
Journal of Modern Physics. :335-343
The influence of the intrinsic spin of electrons on the excitation of transverse electromagnetic surface waves in magnetized plasma is considered. We use a fluid formalism to include quantum corrections due to the Bohm potential and magnetization ene
Publikováno v:
Advanced Studies in Theoretical Physics. 8:1-9
New technique, Genetic Programming, is presented for modeling total cross section of both pp and ¯ pp collisions from low to high energy regions. Recent total cross section data are taken from Particle Data Group and LHC collaboration. The model see
Publikováno v:
Journal of Modern Physics. :766-771
The inelastic scattering of positrons by excited lithium alkali atoms Li*(2p) have been investigated within the frame work of the coupled-static and frozen-core approximations with the assumption that the elastic and rearrangement channels are open.
Publikováno v:
Indian Journal of Physics. 85:1405-1415
A relatively new computational technique, namely gradient tree boosting (GTB), is presented for modeling the total cross sections of the scattering of positrons and electrons by alkali atoms in the low and intermediate energy regions. The calculation
Autor:
Salah Yaseen El-Bakry
Publikováno v:
International Journal of Modern Physics B. 23:2535-2549
The inelastic collisions of positrons with calcium and strontium positive ions are treated for the first time as a three-channel problem within the framework of the improved coupled-static and frozen-core approximations with the assumption that the e
Autor:
Salah-Yaseen El-Bakry
Publikováno v:
Modern Physics Letters B. 21:751-765
The collision of positrons with beryllium and magnesium positive ions is treated for the first time as a three-channel problem with the assumption that the elastic, ground-positronium and excited-positronium formation channels are open. A one-valence
Autor:
Salah Yaseen El-Bakry
Publikováno v:
Modern Physics Letters B. 21:625-637
The investigations of the elastic and inelastic collisions of positrons with potassium atoms, K (1s2, 2s2, 2p6, 3s2, 3p6, 4s), are presented. The potassium target atoms are described using Clementi–Roetti wavefunctions within the framework of the o
Autor:
Salah Yaseen El-Bakry, Amr Radi
Publikováno v:
International Journal of Modern Physics C. 18:351-358
Genetic programming (GP) has been used to discover the function that describes the collisions of positrons with sodium, potassium, rubidium and cesium atoms at low and intermediate energies. The GP has been running based on experimental data of the t
Autor:
Salah Yaseen El-Bakry
Publikováno v:
International Journal of Modern Physics B. 21:221-227
Cross-sections for positron-rubidium (37Rb) scattering have been calculated using the Clementi–Roetti wavefunctions and a combination of the coupled-static and frozen-core approximations. The total cross-sections, calculated with eight partial wave
Publikováno v:
The European Physical Journal Plus. 130
The modelling of proton-proton collisions at high energies using both group method data handling (GMDH) and gene expression programming (GEP) approaches is investigated over a wide range of center-of-mass energy (from $ \sqrt{s} = 23.6$ GeV to 7 TeV)