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

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

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Joseph P. Conlon

Lukas T. Witkowski


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.


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.

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


Accepted Journal Article (935 Kb)

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