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Two-loop superstrings in hyperelliptic language III: the four-particle amplitude
- Source :
-
Nuclear Physics B . Jul2003, Vol. 663 Issue 1/2, p95. 28p. - Publication Year :
- 2003
-
Abstract
- We compute explicitly the four-particle amplitude in superstring theories by using the hyperelliptic language and the newly obtained chiral measure of D''Hoker and Phong. Although the algebra of the intermediate steps is a little bit involved, we obtain a quite simple expression for the four-particle amplitude. As expected, the integrand is independent of all the insertion points. As an application of the obtained result, we show that the perturbative correction to the <f>R4</f> term in type II superstring theories is vanishing point-wise in (even) moduli space at two loops. [Copyright &y& Elsevier]
- Subjects :
- *SUPERSTRING theories
*MODULI theory
Subjects
Details
- Language :
- English
- ISSN :
- 05503213
- Volume :
- 663
- Issue :
- 1/2
- Database :
- Academic Search Index
- Journal :
- Nuclear Physics B
- Publication Type :
- Academic Journal
- Accession number :
- 10061508
- Full Text :
- https://doi.org/10.1016/S0550-3213(03)00381-X