Integration Measure and Spectral Flow in the Critical N=2 String

Details Integration Measure and Spectral Flow in the Critical N=2 String Integration Measure and Spectral Flow in the Critical N=2 String

1995-12-22

arxiv.org/abs/hep-th/9512189v1

Nucl.Phys.Proc.Suppl. 49 (1996) 51-56

Physics

High Energy Physics

High Energy Physics - Theory

Talk at 29th Ahrenshoop Symposium in Buckow 1995, 6 pages, espcrc2.sty

Scientific paper

10.1016/0920-5632(96)00316-7

I present the moduli space of the (2+2)-dimensional critical closed fermionic string with two world-sheet supersymmetries. The integration of fermionic and Maxwell moduli in the presence of punctures yields the string measure for n-point amplitudes at arbitrary genus and instanton number. Generalized picture-changing and spectral-flow operators emerge, connecting different instanton sectors. Tree and loop amplitudes are computed.

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