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

Bullimore, Mathew and Conlon, Joseph P. and Witkowski, Lukas T. (2010) 'Kinetic mixing of U(1)’s for local string models.', Journal of high energy physics., 2010 (11). p. 142.

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.

Item Type:Article
Full text:(AM) Accepted Manuscript
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Status:Peer-reviewed
Publisher Web site:https://doi.org/10.1007/JHEP11(2010)142
Publisher statement:The final publication is available at Springer via https://doi.org/10.1007/JHEP11(2010)142.
Date accepted:10 November 2010
Date deposited:02 July 2018
Date of first online publication:29 November 2010
Date first made open access:No date available

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