23-25 May 2016
Edificio Carolino, Benemérita Universidad Autónoma de Puebla
Mexico/General timezone
Contribution Oral contribution
Spinor Helicity Formalism in Supergravity Pheno
Speakers
- Mr. Bryan LARIOS
Primary authors
- Mr. Bryan LARIOS (BUAP)
Co-authors
- Dr. Lorenzo DIAZ-CRUZ (Benemerita Universidad Autonoma de Puebla)
Files
Description
Using the spinor helicity formalism we compute the cross section for the electron-positron collision in supergravity models where the spin 3/2 gravitino field is the Lightest supersymmetric particle (LSP). The scattering amplitudes for this kind of reactions are hard to compute using the usual Feynman diagrams even for 4 particles and sometime almost imposible for 5 particles in the external states. We show the great advantages to use this formalism even in its more rustic way.