An Ambiguity in Fermionic String Perturbation Theory
Sep, 198716 pages
Published in:
- Nucl.Phys.B 299 (1988) 279-294
- Published: 1988
Report number:
- SLAC-PUB-4420,
- IASSNS/HEP-87/45
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Abstract: (Elsevier)
Recent investigation by Verlinde and Verlinde has shown that the fermionic string loop amplitudes change by a total derivative term in the moduli space under a change of basis of the supermoduli. This ambiguity is addressed in the context of the heterotic string theory, and shown to be a consequence of an inherent ambiguity in defining integration over the variables of a Grassmann algebra—in this case the Grassmann-valued coordinates of the supermoduli space. A resolution of this ambiguity in genus-two within this formalism is also presented.- MODEL: STRING
- string model: fermion
- SUPERSYMMETRY
- FIELD THEORY: PATH INTEGRAL
- FIELD THEORY: PARTITION FUNCTION
- PERTURBATION THEORY
- MATHEMATICAL METHODS: Riemann surface
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