Physics NotePublished
Perturbative computation in a generalized quantum field theory
V. B. Bezerra; E. M. F. Curado; Marco Aurélio do Rego Monteiro
2002
Publication details
- Authors
- V. B. Bezerra; E. M. F. Curado; Marco Aurélio do Rego Monteiro
- Type
- Physics Note
- Status
- Published
- Publication date
- 2002
- Description
- We consider a quantum field theory that creates at any point of the space-time particles described by a $q$-deformed Heisenberg algebra which is interpreted as a phenomenological quantum theory describing the scattering of spin-$0$ composed particles. We discuss the generalization of Wick's expansion for this case and we compute perturbatively the scattering $1+2 \rightarrow 1'+2'$ to second order in the coupling constant. The result we find shows that the structure of a composed particle, described here phenomenologically by the deformed algebraic structure, can modify in a simple but non-trivial way the perturbation expansion for the process under consideration.
- Year
- 2002
- Number
- CBPF-NF-032/02
- Linked to a thesis
- No
- Linked to a grant
- No