The Field Theory of Non-Supersymmetric Brane Configurations
Nick Evans (Boston Univ.), Myck Schwetz (Yale, Rutgers)
TL;DR
This paper explores the field theories on D4 branes in non-supersymmetric string theory, calculating string tension ratios and testing M-theory predictions in softly broken N=2 SU(N) gauge theories.
Contribution
It identifies non-supersymmetric 4D field theories on D4 branes and tests M-theory predictions by calculating string tension ratios in these models.
Findings
Calculated string tension ratios in non-supersymmetric models.
Renormalization of semi-classical M-theory results.
Confirmed M-theory predictions in softly broken N=2 gauge theories.
Abstract
We identify the 4D field theories living on the world volume of D4 branes in non-supersymmetric type IIA string theory constructions. They are softly broken N=2 SQCD with the breakings introduced through vevs of the auxilliary fields in the spurion coupling field. Exact solutions of these theories for perturbing soft breakings exist in the literature. We calculate the ratios of string tensions in softly broken N=2 SU(N) gauge theory testing the recently proposed M-theory prediction. The semi-classical result of M-theory is renormalized in the non-supersymmetric models.
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