arXiv subjects

Soumya Sasmal

Publications and source records attributed to Soumya Sasmal.

2 recordsLinked to original sources

arXiv2017

One loop amplitude for Heterotic string on $T^2$

We revisit the results of one loop string amplitude calculations for the Heterotic string theory compactified on a torus with or without Wilson lines. We give the complete elliptic genus and the harmonic part of the CP-even amplitude for the gauge groups $SO(32)$, $E_8 \times E_8$, $SO(16)^2$ and $SO(8)^4$.

hep-th↗

arXiv2017

Discrete anomalies in supergravity and consistency of string backgrounds

We examine SL(2, Z) anomalies in ten and eight-dimensional supergravities, the induced local counterterms and their realization in string theory. Composite connections play an important role in the cancellation mechanism. At the same time their global properties lead to novel non-trivial consistency constraints on compactifications.

hep-th↗