Schwinger-type parametrization of open string worldsheets
Abstract
A parametrization of (super) moduli space near the corners corresponding to bosonic or Neveu-Schwarz open string degenerations is introduced for worldsheets of arbitrary topology. With this parametrization, Feynman graph polynomials arise as the α ' 0 limit of objects on moduli space. Furthermore, the integration measures of string theory take on a very simple and elegant form.
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