On R4 threshold corrections in type IIB string theory and (p, q)-string instantons
نویسندگان
چکیده
منابع مشابه
On R threshold corrections in type IIB string theory and (p, q)-string instantons
We obtain the exact non-perturbative thresholds of R terms in type IIB string theory compactified to eight and seven dimensions. These thresholds are given by the perturbative tree-level and one-loop results together with the contribution of the D-instantons and of the (p, q)-string instantons. The invariance under U -duality is made manifest by rewriting the sum as a non-holomorphic invariant ...
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 1997
ISSN: 0550-3213
DOI: 10.1016/s0550-3213(97)00645-7