6533b871fe1ef96bd12d25d7

RESEARCH PRODUCT

Integration of massive states as contractions of non linear sigma-models

M. A. LledoOscar MaciaLaura Maria AndrianopoliSergio Ferrara

subject

PhysicsHigh Energy Physics - TheoryContraction (grammar)SupergravityHigh Energy Physics::PhenomenologySigmaFísicaStatistical and Nonlinear PhysicsSupersymmetry breakingNonlinear systemHigh Energy Physics::TheoryLow energyMathematical PhysicsParticle Physics - TheoryMathematical physics

description

We consider the contraction of some non linear sigma models which appear in effective supergravity theories. In particular we consider the contractions of maximally symmetric spaces corresponding to N=1 and N=2 theories, as they appear in certain low energy effective supergravity actions with mass deformations. The contraction procedure is shown to describe the integrating out of massive modes in the presence of interactions, as it happens in many supergravity models after spontaneous supersymmetry breaking.

yearjournalcountryeditionlanguage
2005-03-24
10.1063/1.1960719http://hdl.handle.net/10550/33278