| Full text | |
| Author(s): |
Leao, J.
;
de Melo, J. P. B. C.
Total Authors: 2
|
| Document type: | Journal article |
| Source: | REVISTA MEXICANA DE FISICA; v. 69, n. 6, p. 14-pg., 2023-11-01. |
| Abstract | |
Quantum Field Theory (QFT) is used to describe the physics of particles in terms of their fundamental constituents. The Light-Front Field Theory (LFFT), introduced by Paul Dirac in 1949 [1], is an alternative approach to solve some of the problems that arise in quantum field theory. The LFFT is similar to the Equal Time Quantum Field Theory (EQT), however, some particularities are not, such as the loss of covariance in the light-front. Pion electromagnetic form factor is studied in this work at lower and higher momentum transfer regions to explore the constituent quark models and the differences among these and other models. The electromagnetic current is calculated with both the "plus" and "minus" components in the light-front approach. The results are compared with other models, as well as with experimental data. (AU) | |
| FAPESP's process: | 19/02923-5 - Hadronic physics with the light-front approach |
| Grantee: | Joao Pacheco Bicudo Cabral de Mello |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 17/05660-0 - Theoretical studies of the structure and reactions of exotic nuclei and many-body systems |
| Grantee: | Brett Vern Carlson |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 13/26258-4 - Superdense matter in the universe |
| Grantee: | Manuel Máximo Bastos Malheiro de Oliveira |
| Support Opportunities: | Research Projects - Thematic Grants |