Chiral effective potential in $\mathcal{N}=1/2$ non-commutative Wess-Zumino model

Abstract

We study a structure of holomorphic quantum contributions to the effective action for $\mathcal{N}=1/2$ noncommutative Wess-Zumino model. Using the symbol operator techniques we present the one-loop chiral effective potential in a form of integral over proper time of the appropriate heat kernel. We prove that this kernel can be exactly found. As a result we obtain the exact integral representation of the one-loop effective potential. Also we study the expansion of the effective potential in a series in powers of the chiral superfield $\Phi$ and derivative $D^2\Phi$ and construct a procedure for systematic calculation of the coefficients in the series. We show that all terms in the series without derivatives can be summed up in an explicit form.

LaTeX, JHEP style, 32 pages, typos corrected, references added

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