243 citations · 770 across the 27 of their papers we have counts for
27 papers
Pinching parameters for open (super) strings
Sam Playle, Stefano Sciuto
We present an approach to the parametrization of (super) Schottky space obtained by sewing together three-punctured discs with strips. Different cubic ribbon graphs classify distin…
Schwinger-type parametrization of open string worldsheets
Sam Playle, Stefano Sciuto
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.…
Two-loop Yang-Mills diagrams from superstring amplitudes
Lorenzo Magnea, Sam Playle, Rodolfo Russo +1
Starting from the superstring amplitude describing interactions among D-branes with a constant world-volume field strength, we present a detailed analysis of how the open string de…
Multi-loop open string amplitudes and their field theory limit
Lorenzo Magnea, Sam Playle, Rodolfo Russo +1
We study the field theory limit of multi-loop (super)string amplitudes, with the aim of clarifying their relationship to Feynman diagrams describing the dynamics of the massless st…
New twist field couplings from the partition function for multiply wrapped D-branes
Dario Duo, Rodolfo Russo, Stefano Sciuto
We consider toroidal compactifications of bosonic string theory with particular regard to the phases (cocycles) necessary for a consistent definition of the vertex operators, the b…
The twisted open string partition function and Yukawa couplings
Rodolfo Russo, Stefano Sciuto
We use the operator formalism to derive the bosonic contribution to the twisted open string partition function in toroidal compactifications. This amplitude describes, for instance…