A high quality composite axion
Abstract The strong CP problem is a compelling motivation for physics beyond the Standard Model. The most popular solutions invoke a global U(1)PQ symmetry, but are challenged by quantum gravitational corrections which are thought to be incompatible with global symmetries, arguing that realistic the...
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Online Access: | http://link.springer.com/article/10.1007/JHEP11(2018)199 |
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doaj-6f2664e9fa38458fb8b90884f3ff8d882020-11-25T02:17:49ZengSpringerOpenJournal of High Energy Physics1029-84792018-11-0120181111910.1007/JHEP11(2018)199A high quality composite axionBenjamin Lillard0Tim M. P. Tait1Department of Physics and Astronomy, University of CaliforniaDepartment of Physics and Astronomy, University of CaliforniaAbstract The strong CP problem is a compelling motivation for physics beyond the Standard Model. The most popular solutions invoke a global U(1)PQ symmetry, but are challenged by quantum gravitational corrections which are thought to be incompatible with global symmetries, arguing that realistic theories contain additional structure. We explore a construction in which the U(1)PQ symmetry is protected to arbitrary order by virtue of a supersymmetric, confining SU(N) L × SU(N) × SU(N) R × U(1) X product gauge group, achieving θ ¯ $$ \left|\overline{\uptheta}\right| $$ < 10−11 for an SU(5) model with f a ≲ 3 × 1011 GeV. This construction leads to low energy predictions such as a U(1) X gauge symmetry, and for X = B − L engineers a naturally O $$ \mathcal{O} $$ (TeV) value for the μ parameter of the MSSM.http://link.springer.com/article/10.1007/JHEP11(2018)199ConfinementGlobal SymmetriesSpontaneous Symmetry BreakingSupersymmetric Gauge Theory |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Benjamin Lillard Tim M. P. Tait |
spellingShingle |
Benjamin Lillard Tim M. P. Tait A high quality composite axion Journal of High Energy Physics Confinement Global Symmetries Spontaneous Symmetry Breaking Supersymmetric Gauge Theory |
author_facet |
Benjamin Lillard Tim M. P. Tait |
author_sort |
Benjamin Lillard |
title |
A high quality composite axion |
title_short |
A high quality composite axion |
title_full |
A high quality composite axion |
title_fullStr |
A high quality composite axion |
title_full_unstemmed |
A high quality composite axion |
title_sort |
high quality composite axion |
publisher |
SpringerOpen |
series |
Journal of High Energy Physics |
issn |
1029-8479 |
publishDate |
2018-11-01 |
description |
Abstract The strong CP problem is a compelling motivation for physics beyond the Standard Model. The most popular solutions invoke a global U(1)PQ symmetry, but are challenged by quantum gravitational corrections which are thought to be incompatible with global symmetries, arguing that realistic theories contain additional structure. We explore a construction in which the U(1)PQ symmetry is protected to arbitrary order by virtue of a supersymmetric, confining SU(N) L × SU(N) × SU(N) R × U(1) X product gauge group, achieving θ ¯ $$ \left|\overline{\uptheta}\right| $$ < 10−11 for an SU(5) model with f a ≲ 3 × 1011 GeV. This construction leads to low energy predictions such as a U(1) X gauge symmetry, and for X = B − L engineers a naturally O $$ \mathcal{O} $$ (TeV) value for the μ parameter of the MSSM. |
topic |
Confinement Global Symmetries Spontaneous Symmetry Breaking Supersymmetric Gauge Theory |
url |
http://link.springer.com/article/10.1007/JHEP11(2018)199 |
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AT benjaminlillard ahighqualitycompositeaxion AT timmptait ahighqualitycompositeaxion AT benjaminlillard highqualitycompositeaxion AT timmptait highqualitycompositeaxion |
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