Kinetic mixing of U(1)’s for local string models

Bullimore, Mathew; Conlon, Joseph P.; Witkowski, Lukas T.

doi:10.1007/jhep11(2010)142

Kinetic mixing of U(1)’s for local string models

Bullimore, Mathew; Conlon, Joseph P.; Witkowski, Lukas T.

Authors

Professor Mathew Bullimore mathew.r.bullimore@durham.ac.uk
Early Career Fellowship

Joseph P. Conlon

Lukas T. Witkowski

Abstract

We study kinetic mixing between massless U(1)s in toroidal orbifolds with D3-branes at orbifold singularities. We focus in particular on C3/Z4 singularities but also study C3/Z6 and C3/Z′6 singularities. We find kinetic mixing can be present and describe the conditions for it to occur. Kinetic mixing comes from winding modes in the N=2 sector of the orbifold. If kinetic mixing is present its size depends only on the complex structure modulus of the torus and is independent of the Kähler moduli. We also study gauge threshold corrections for local ZM×ZN orbifold models finding that, consistent with previous studies, gauge couplings run from the bulk winding scale rather than the string scale.

Citation

Bullimore, M., Conlon, J. P., & Witkowski, L. T. (2010). Kinetic mixing of U(1)’s for local string models. Journal of High Energy Physics, 2010(11), Article 142. https://doi.org/10.1007/jhep11%282010%29142

Journal Article Type	Article
Acceptance Date	Nov 10, 2010
Online Publication Date	Nov 29, 2010
Publication Date	Nov 29, 2010
Deposit Date	Jun 7, 2018
Publicly Available Date	Jul 2, 2018
Journal	Journal of High Energy Physics
Print ISSN	1126-6708
Publisher	Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Peer Reviewed	Peer Reviewed
Volume	2010
Issue	11
Article Number	142
DOI	https://doi.org/10.1007/jhep11%282010%29142