String phenomenology from a worldsheet perspective

Faraggi, Alon E ORCID: 0000-0001-7123-6414 (2019) String phenomenology from a worldsheet perspective. EUROPEAN PHYSICAL JOURNAL C, 79 (8). 703-.

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Official URL: http://dx.doi.org/10.1140/epjc/s10052-019-7222-5

Abstract

I argue that the ten dimensional non--supersymmetric tachyonic superstrings may serve as good starting points for the construction of viable phenomenological vacua. Thus, enlarging the space of possible solutions that may address some of the outstanding problems in string phenomenology. A tachyon free six generation Standard--like Model is presented, which can be regarded as an orbifold of the $SO(16)\times E_8$ heterotic--string in ten dimensions. I propose that any $(2,0)$ heterotic--string in four dimensions can be connected to a $(2,2)$ one via an orbifold or by interpolations and provide some evidence for this conjecture. It suggests that any Effective Field Theory (EFT) model that cannot be connected to a $(2,2)$ theory is necessarily in the swampland, and will simplify the analysis of the moduli spaces of $(2,0)$ string compactifications.

Item Type:	Article
Additional Information:	19 pages. Standard LaTex. Published version. Minor typos
Uncontrolled Keywords:	hep-th, hep-th, hep-ph
Depositing User:	Symplectic Admin
Date Deposited:	24 Jan 2020 10:09
Last Modified:	15 Mar 2024 01:22
DOI:	10.1140/epjc/s10052-019-7222-5
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3071747