Instanton calculus and nonperturbative relations in N=2 supersymmetric gauge theories
- Dipartimento di Fisica, Universita di Roma Tor Vergata, Istituto Nazionale di Fisica Nucleare, Sezione di Roma II, Via della Ricerca Scientifica, 00133 Roma (Italy)
- Dipartimento di Fisica, Universita di Roma La Sapienza, Istituto Nazionale di Fisica Nucleare, Sezione di Roma II, Via della Ricerca Scientifica, 00133 Roma (Italy)
Using instanton calculus we check, in the weak coupling region, the nonperturbative relation {l_angle}Tr{phi}{sup 2}{r_angle}=i{pi}[ F{minus}(a/2){partial_derivative}{partial_derivative}a] obtained for a N=2 globally supersymmetric gauge theory. Our computations are performed for instantons of winding number k, up to k=2, and turn out to agree with previous nonperturbative results. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 475307
- Journal Information:
- Physical Review, D, Vol. 55, Issue 2; Other Information: PBD: Jan 1997
- Country of Publication:
- United States
- Language:
- English
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