Bagger–Witten line bundles on moduli spaces of elliptic curves
Bagger–Witten line bundles on moduli spaces of elliptic curves
In this paper we discuss Bagger-Witten line bundles over moduli spaces of SCFTs. We review how in general they are `fractional' line bundles, not honest line bundles, twisted on triple overlaps. We discuss the special case of moduli spaces of elliptic curves in detail. There, the Bagger-Witten line bundle does …