Abstract
In addition to the familiar contribution from a holomorphic function F , the Kähler potential of the scalars in the nonabelian N = 2 vector multiplet receives contributions from a real function H . We determine the latter at the one-loop level, taking into account both supersymmetric matter and gauge loops. The function H characterizes the four-point coupling of the N = 2 vector multiplet vectors for constant values of their scalar superpartners. We discuss the consequences of our results.
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