| Title |
Physical Properties for Initial Phase of Nuclear Matter in
Terms of Experimental Measurements and Corresponding
Predictions of Theoretical Models |
| Type |
MSc |
| Supervisors |
Prof. Dr. Ahmed Abdalla; Assoc. Prof. Dr. Abd El-Nasser Saber |
| Year |
2024 |
| Abstract |
Study of internal physical properties for hadrons (protons) is very important
in physics. These properties are investigated by using different techniques.
Elastic scattering experiments are one of them. Scattering theory using
Quantum Electro-Dynamics (QED), is a suitable method especially for high
energy experiments. Feynman diagrams are applied for Lepton-Hadron
scattering to give a suitable expression for scattering cross-section known as
Mott formula. In this thesis we drive it for electron-proton elastic scattering.
A comparison between this prediction and experimental measurements is
discussed. At low values of momentum transfer, the proton appears as a point-
like particle while its constituents appear to be contributed to scattering
process with high values. It concludes that there is a modified factor that must
be added to Mott formula. This factor is related to electric and magnetic
properties of the internal constituents of proton. These factors are called form
factors. By comparison with experimental data, the calculated values agreed
with that obtained from other groups. The charge radius of proton is expected
to be 0.81 fm. Different images for proton are obtained due to different values
of momentum transfer and compared with the photon wavelength. |
| Keywords |
Proton structure, Quantum field theory, Scattering theory and cross-section |
| University |
Benha University |
| Country |
Egypt |
| Full Paper |
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