Artículos de revistas
Superspace approach to the renormalization of the O'Raifeartaigh model up to the second order in the linear delta expansion parameter
Fecha
2012-06-21Registro en:
Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 85, n. 12, 2012.
1550-7998
1550-2368
10.1103/PhysRevD.85.125032
2-s2.0-84862739885
Autor
Universidade Estadual Paulista (UNESP)
Centro Brasileiro de Pesquisas Físicas
Rua Carlos Barbosa S/N
Universidade Federal Do Pampa
Institución
Resumen
We adopt a superspace/supergraph formalism to pursue the investigation of the structure of one- and two-loop divergences in the frame of the minimal O'Raifeartaigh model that realizes the F-term spontaneous supersymmetry breaking. The linear delta expansion (LDE) procedure is introduced and renormalization is carried out up to the second order in the LDE expansion parameter. In agreement with the nonrenormalization theorem for the (chiral/antichiral) matter potential of N=1, D=4 supersymmetry, our explicit supergraph calculations confirm that only the Kähler potential is actually renormalized. © 2012 American Physical Society.