Schwinger-type parametrization of open string worldsheets

Schwinger-type parametrization of open string worldsheets

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, th...

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Veröffentlicht in:Physics letters. B 2017-03, Vol.766 (C), p.317-324
Hauptverfasser: Playle, Sam, Sciuto, Stefano
Format: Artikel
Sprache:eng
Schlagworte:
Schottky groups
Strings
Supermanifolds
Superstrings
Worldline formalism
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Zusammenfassung: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.
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2017.01.009