161 citations · 279 across the 7 of their papers we have counts for
5 papers · 1 filter
Feynman rules for non-perturbative sectors and anomalous supersymmetry Ward identities
A. Casher, Y. Shamir
We show that supersymmetry Ward identities contain an anomalous term which takes the form of a surface term in Hilbert space. In the one-instanton sector the anomalous term is the…
A Supersymmetry Anomaly
Aharon Casher, Yigal Shamir
A supersymmetry anomaly is found in the presence of non-perturbative fields. When the action is expressed in terms of the correct quantum variables, anomalous surface terms appear…
Anomalous Supersymmetry Breaking by Instantons
A. Casher, V. Elkonin, Y. Shamir
We show that instantons violate a supersymmetric identity in a classically supersymmetric Higgs model with no massless fermions. This anomalous breaking arises because the correct…
Explicit breaking of supersymmetry by non-perturbative effects
A. Casher, V. Elkonin, Y. Shamir
Instanton effects in a family of completely massive Higgs models with N=1 supersymmetry are investigated. The models have and . In each model, we show that a cert…
Quantum Gravity via Random Triangulations of R^4 and Gravitons as Goldstone Bosons of SL(4)/O(4)
Yigal Shamir
A model of random triangulations of a domain in is presented. The global symmetries of the model include SL(4) transformations and translations. If a stable microscopic s…