Worldsheet instantons and coupling selection rules in heterotic orbifolds

Parameswaran, SL ORCID: 0000-0001-9804-2476 and Zavala, I (2014) Worldsheet instantons and coupling selection rules in heterotic orbifolds .

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Abstract

We review recent results [1–3] on string coupling selection rules for heterotic orbifolds, derived using conformal field theory. Such rules are the first step towards understanding the viability of the recently obtained compactifications with potentially realistic particle spectra. They arise from the properties of the worldsheet instantons that mediate the couplings, and include stringy effects that would seem “miraculous” to an effective field theory observer.

Item Type:	Conference Item (Unspecified)
Uncontrolled Keywords:	5106 Nuclear and Plasma Physics, 5107 Particle and High Energy Physics, 51 Physical Sciences
Depositing User:	Symplectic Admin
Date Deposited:	04 Jul 2016 10:41
Last Modified:	24 Jun 2026 12:30
DOI:	10.1134/S154747711407036X
Related Websites:	Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3002000
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