Localization of the gauged linear sigma model for KK5-branes
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Abstract We study quantum aspects of the target space of the non-linear sigma model, which is a low-energy effective theory of the gauged linear sigma model (GLSM). As such, we especially compute the exact sphere partition function of the GLSM for KK$5$-branes whose background geometry is a Taub–NUT space, using the supersymmetric localization technique on the Coulomb branch. From the sphere partition function, we distill the world-sheet instanton effects. In particular, we show that, concerning the single-centered Taub–NUT space, instanton contributions exist only if the asymptotic radius of the $S^1$ fiber in the Taub–NUT space is zero.
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1999 ◽
Vol 14
(28)
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pp. 4501-4517
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1990 ◽
Vol 13
(3)
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pp. 383-392
2011 ◽
Vol 26
(14)
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pp. 2327-2352
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2009 ◽
Vol 2009
(11)
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pp. 007-007
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2010 ◽
Vol 25
(01)
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pp. 25-33
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1998 ◽
Vol 13
(06)
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pp. 903-914
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