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21 papers · 2 filters
Instanton Calculations for N=1/ 2 super Yang-Mills Theory
P. A. Grassi, R. Ricci, D. Robles-Llana
We study (anti-) instantons in super Yang-Mills theories defined on a non anticommutative superspace. The instanton solution that we consider is the same as in ordinary SU(2) N=1 s…
Snyderspace
Machiko Hatsuda, Warren Siegel
We generalize the construction of Snyder to a Lorentz covariant noncommutative superspace.
Gauge-covariant vertex operators
Haidong Feng, Warren Siegel
We derive Yang-Mills vertex operators for (super)string theory whose BRST invariance requires only the free gauge-covariant field equation and no gauge condition. Standard conforma…
Spin-Spin and Spin-Orbit Interactions in Strongly Coupled Gauge Theories
Edward V. Shuryak, Ismail Zahed
We evaluate the spin-orbit and spin-spin interaction between two fermions in strongly coupled gauge theories in their Coulomb phase. We use the quasi-instantaneous character of Cou…
Factorization of Correlation Functions and the Replica Limit of the Toda Lattice Equation
K. Splittorff, J. J. M. Verbaarschot
Exact microscopic spectral correlation functions are derived by means of the replica limit of the Toda lattice equation. We consider both Hermitian and non-Hermitian theories in th…
On the nature of the anomalies in the supersymmetric kink
Kazuo Fujikawa, Anton Rebhan, Peter van Nieuwenhuizen
We discuss the possibility to absorb all anomalies in the supersymmetry algebra of the N=(1,1) Wess-Zumino model in d=1+1 by a local counter term. This counter term corresponds to…