String phenomenology from a worldsheet perspective

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 fre...

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Bibliographic Details
Published in:The European physical journal. C, Particles and fields Particles and fields, 2019-08, Vol.79 (8), p.1-10, Article 703
Main Author: Faraggi, Alon E.
Format: Article
Language:English
Subjects:
Astronomy
Astrophysics and Cosmology
Elementary Particles
Field theory
Hadrons
Heavy Ions
Measurement Science and Instrumentation
Nuclear Energy
Nuclear Physics
Phenomenology
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Regular Article - Theoretical Physics
String Theory
Supersymmetry
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Summary: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 S O ( 16 ) × 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.
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s10052-019-7222-5