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On the large Ω-deformations in the Nekrasov-Shatashvili limit of N = 2 * $$ \mathcal{N}={2}^{*} $$ SYM

2016
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Journal of High Energy Physics
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We study the multi-instanton partition functions of the $\Omega$-deformed $\mathcal N =2^{*}$ $SU(2) $ gauge theory in the Nekrasov-Shatashvili (NS) limit. They depend on the deformation parameters $\epsilon_{1}$, the scalar field expectation value $a$, and the hypermultiplet mass $m$. At fixed instanton number $k$, they are rational functions of $\epsilon_{1}, a, m$ and we look for possible regularities that admit a parametrical description in the number of instantons. In each instanton

doi:10.1007/jhep07(2016)055
fatcat:ja22eoytnbaznojklyj5uvrfwi