Abstract
The neutral-pion mode of the two-photon process ({gamma}{gamma} {yields} {pi}{pi}) is herein, the subject of a phenomenological study. The experimental data, to which the theoretical descriptions of the total cross-section will be fitted, are provided by the Crystal Ball Collaboration. As a result, new estimates for {Gamma}(f{sub 0} {yields} {gamma} {gamma}) and {Gamma}(f{sub 2}{yields}gammagamma``) are predicted and used thereafter to evaluate the validity of the cross-sections models that yielded them. Fixed-t dispersion relations, Breit-Wigner formalism, and Vector-Meson Dominance are the main theoretical means of this study which is characterised by the emergence of the crossed channel ({gamma}{pi}{sup 0} {yields}{gamma}{pi}{sup 0}) contribution as a possible explanation to account for the presence of the observed experimental low-energy background in the direct channel. (author).
Seddiki, A
[1]
- Queen Mary and Westfield College London (United Kingdom). Dept. of Physics
Citation Formats
Seddiki, A.
A phenomenological study of {gamma}{gamma} {yields} {pi}{sup 0}{pi}{sup 0} at low energies.
United Kingdom: N. p.,
1991.
Web.
Seddiki, A.
A phenomenological study of {gamma}{gamma} {yields} {pi}{sup 0}{pi}{sup 0} at low energies.
United Kingdom.
Seddiki, A.
1991.
"A phenomenological study of {gamma}{gamma} {yields} {pi}{sup 0}{pi}{sup 0} at low energies."
United Kingdom.
@misc{etde_10120760,
title = {A phenomenological study of {gamma}{gamma} {yields} {pi}{sup 0}{pi}{sup 0} at low energies}
author = {Seddiki, A}
abstractNote = {The neutral-pion mode of the two-photon process ({gamma}{gamma} {yields} {pi}{pi}) is herein, the subject of a phenomenological study. The experimental data, to which the theoretical descriptions of the total cross-section will be fitted, are provided by the Crystal Ball Collaboration. As a result, new estimates for {Gamma}(f{sub 0} {yields} {gamma} {gamma}) and {Gamma}(f{sub 2}{yields}gammagamma``) are predicted and used thereafter to evaluate the validity of the cross-sections models that yielded them. Fixed-t dispersion relations, Breit-Wigner formalism, and Vector-Meson Dominance are the main theoretical means of this study which is characterised by the emergence of the crossed channel ({gamma}{pi}{sup 0} {yields}{gamma}{pi}{sup 0}) contribution as a possible explanation to account for the presence of the observed experimental low-energy background in the direct channel. (author).}
place = {United Kingdom}
year = {1991}
month = {Oct}
}
title = {A phenomenological study of {gamma}{gamma} {yields} {pi}{sup 0}{pi}{sup 0} at low energies}
author = {Seddiki, A}
abstractNote = {The neutral-pion mode of the two-photon process ({gamma}{gamma} {yields} {pi}{pi}) is herein, the subject of a phenomenological study. The experimental data, to which the theoretical descriptions of the total cross-section will be fitted, are provided by the Crystal Ball Collaboration. As a result, new estimates for {Gamma}(f{sub 0} {yields} {gamma} {gamma}) and {Gamma}(f{sub 2}{yields}gammagamma``) are predicted and used thereafter to evaluate the validity of the cross-sections models that yielded them. Fixed-t dispersion relations, Breit-Wigner formalism, and Vector-Meson Dominance are the main theoretical means of this study which is characterised by the emergence of the crossed channel ({gamma}{pi}{sup 0} {yields}{gamma}{pi}{sup 0}) contribution as a possible explanation to account for the presence of the observed experimental low-energy background in the direct channel. (author).}
place = {United Kingdom}
year = {1991}
month = {Oct}
}