Generic matter representations in 6D supergravity theories
Abstract
In sixdimensional supergravity, there is a natural sense in which matter lying in certain representations of the gauge group is “generic,” in that other “exotic” matter representations require more fine tuning. From considerations of the dimensionality of the moduli space and anomaly cancellation conditions, we find that the generic sets of matter representations are welldefined for 6D supergravity theories with gauge groups containing arbitrary numbers of nonabelian factors and U(1) factors. These generic matter representations also match with those that arise in the most generic Ftheory constructions, both in 6D and in 4D, with nongeneric matter representations requiring more exotic singularity types. The analysis of generic versus exotic matter illuminates longstanding puzzles regarding Ftheory models with multiple U(1) factors and provides a useful framework for analyzing the 6D “swampland” of apparently consistent lowenergy theories that cannot be realized through known string constructions. We note also that the matter content of the standard model is generic by the criteria used here only if the global structure is SU(3)_{c} × SU(2)_{L} × U(1)_{Y}/Z_{6}.
 Authors:

 Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
 Publication Date:
 Research Org.:
 Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
 Sponsoring Org.:
 USDOE Office of Science (SC), High Energy Physics (HEP)
 OSTI Identifier:
 1611868
 Grant/Contract Number:
 SC0012567
 Resource Type:
 Accepted Manuscript
 Journal Name:
 Journal of High Energy Physics (Online)
 Additional Journal Information:
 Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2019; Journal Issue: 5; Journal ID: ISSN 10298479
 Publisher:
 Springer Berlin
 Country of Publication:
 United States
 Language:
 English
 Subject:
 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; Physics; FTheory; Field Theories in Higher Dimensions; Supergravity Models
Citation Formats
Taylor, Washington, and Turner, Andrew P. Generic matter representations in 6D supergravity theories. United States: N. p., 2019.
Web. doi:10.1007/jhep05(2019)081.
Taylor, Washington, & Turner, Andrew P. Generic matter representations in 6D supergravity theories. United States. doi:10.1007/jhep05(2019)081.
Taylor, Washington, and Turner, Andrew P. Wed .
"Generic matter representations in 6D supergravity theories". United States. doi:10.1007/jhep05(2019)081. https://www.osti.gov/servlets/purl/1611868.
@article{osti_1611868,
title = {Generic matter representations in 6D supergravity theories},
author = {Taylor, Washington and Turner, Andrew P.},
abstractNote = {In sixdimensional supergravity, there is a natural sense in which matter lying in certain representations of the gauge group is “generic,” in that other “exotic” matter representations require more fine tuning. From considerations of the dimensionality of the moduli space and anomaly cancellation conditions, we find that the generic sets of matter representations are welldefined for 6D supergravity theories with gauge groups containing arbitrary numbers of nonabelian factors and U(1) factors. These generic matter representations also match with those that arise in the most generic Ftheory constructions, both in 6D and in 4D, with nongeneric matter representations requiring more exotic singularity types. The analysis of generic versus exotic matter illuminates longstanding puzzles regarding Ftheory models with multiple U(1) factors and provides a useful framework for analyzing the 6D “swampland” of apparently consistent lowenergy theories that cannot be realized through known string constructions. We note also that the matter content of the standard model is generic by the criteria used here only if the global structure is SU(3)c × SU(2)L × U(1)Y/Z6.},
doi = {10.1007/jhep05(2019)081},
journal = {Journal of High Energy Physics (Online)},
number = 5,
volume = 2019,
place = {United States},
year = {2019},
month = {5}
}
Web of Science
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