Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1992-11-04
Phys.Rev.Lett.70:2841-2844,1993
Physics
High Energy Physics
High Energy Physics - Theory
8 pages, iassns-hep-92-20 and McGill/92-48 (references added/corrected)
Scientific paper
10.1103/PhysRevLett.70.2841
Using recent advances in the understanding of non-critical strings, we construct a unique, conformally invariant continuation to off-shell momenta of Polyakov amplitudes in critical string theory. Three-point amplitudes are explicitly calculated. These off-shell amplitudes possess some unusual, apparently stringy, characteristics, which are unlikely to be reproduced in a string field theory. Thus our results may be an indication that some fundamentally new formulation, other than string field theory, will be required to extend our understanding of critical strings beyond the Polyakov path integral.
Myers Robert C.
Periwal Vipul
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