On the Uniqueness of the effective Lagrangian for N= 2 SQCD
M. Magro, L. O'Raifeartaigh, I. Sachs (Dublin Institute for Advanced, Studies)
TL;DR
This paper derives the unique form of the low energy effective Lagrangian for N=2 SU(2) SQCD with fewer than four massless matter fields, based on BPS mass formulas and assumptions about singularities.
Contribution
It establishes the uniqueness of the effective Lagrangian for N=2 SQCD with less than four matter fields using BPS formulas and finiteness assumptions.
Findings
Derived the effective Lagrangian from BPS mass formulas.
Proved the uniqueness of the Lagrangian under specified conditions.
Connected the structure of singularities to the Lagrangian's form.
Abstract
The low energy effective Lagrangian for N= 2 SU(2) supersymmetric Yang-Mills theory coupled to N_F<4 massless matter fields is derived from the BPS mass formula using asymptotic freedom and assuming that the number of strong coupling singularities is finite.
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