Off-Shell Amplitudes in String Theory and Hyperbolic Geometry

被引：0
|
作者：
Moosavian, Seyed Faroogh [1 ]
Pius, Roji [1 ]
机构：
[1] Perimeter Inst Theoret Phys, Waterloo, ON, Canada
来源：
FORTSCHRITTE DER PHYSIK-PROGRESS OF PHYSICS | 2020年 / 68卷 / 06期
关键词：
hyperbolic geometry; off-shell amplitudes; string perturbation theory; WEIL-PETERSSON VOLUMES; MASS RENORMALIZATION; MODULI SPACE; INTERSECTION THEORY; QUANTUM GEOMETRY; SIMPLE GEODESICS; D-TERMS; CANCELLATION; HANDLES; SHIFTS;
D O I：
10.1002/prop.201900078
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The construction of off-shell amplitudes in closed string theory using Riemann surfaces having constant curvature -1 is explored in detail. Off-shell string amplitudes constructed using surfaces with constant curvature -1 fail to satisfy the off-shell factorization properties, and as a result, scattering amplitudes computed using them are ill-defined. In this paper, we describe a procedure for systematically modifying this construction and obtain consistent off-shell amplitudes in closed string theory satisfying the off-shell factorization properties.
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页数：20
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