Linking light scalar modes with a small positive cosmological constant in string theory
Abstract Based on the studies in Type IIB string theory phenomenology, we conjecture that a good fraction of the meta-stable de Sitter vacua in the cosmic stringy landscape tend to have a very small cosmological constant Λ when compared to either the string scale M S or the Planck scale M P , i.e.,...
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Online Access: | http://link.springer.com/article/10.1007/JHEP06(2017)094 |
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doaj-7a4d201ad4f74e97baf60b988acf27f52020-11-25T00:34:36ZengSpringerOpenJournal of High Energy Physics1029-84792017-06-012017613710.1007/JHEP06(2017)094Linking light scalar modes with a small positive cosmological constant in string theoryS.-H. Henry Tye0Sam S.C. Wong1Jockey Club Institute for Advanced Study and Department of Physics, Hong Kong University of Science and TechnologyJockey Club Institute for Advanced Study and Department of Physics, Hong Kong University of Science and TechnologyAbstract Based on the studies in Type IIB string theory phenomenology, we conjecture that a good fraction of the meta-stable de Sitter vacua in the cosmic stringy landscape tend to have a very small cosmological constant Λ when compared to either the string scale M S or the Planck scale M P , i.e., Λ ≪ M S 4 ≪ M P 4 . These low lying de Sitter vacua tend to be accompanied by very light scalar bosons/axions. Here we illustrate this phenomenon with the bosonic mass spectra in a set of Type IIB string theory flux compactification models. We conjecture that small Λ with light bosons is generic among de Sitter solutions in string theory; that is, the smallness of Λ and the existence of very light bosons (may be even the Higgs boson) are results of the statistical preference for such vacua in the landscape. We also discuss a scalar field ϕ 3 /ϕ 4 model to illustrate how this statistical preference for a small Λ remains when quantum loop corrections are included, thus bypassing the radiative instability problem.http://link.springer.com/article/10.1007/JHEP06(2017)094Strings and branes phenomenology |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
S.-H. Henry Tye Sam S.C. Wong |
spellingShingle |
S.-H. Henry Tye Sam S.C. Wong Linking light scalar modes with a small positive cosmological constant in string theory Journal of High Energy Physics Strings and branes phenomenology |
author_facet |
S.-H. Henry Tye Sam S.C. Wong |
author_sort |
S.-H. Henry Tye |
title |
Linking light scalar modes with a small positive cosmological constant in string theory |
title_short |
Linking light scalar modes with a small positive cosmological constant in string theory |
title_full |
Linking light scalar modes with a small positive cosmological constant in string theory |
title_fullStr |
Linking light scalar modes with a small positive cosmological constant in string theory |
title_full_unstemmed |
Linking light scalar modes with a small positive cosmological constant in string theory |
title_sort |
linking light scalar modes with a small positive cosmological constant in string theory |
publisher |
SpringerOpen |
series |
Journal of High Energy Physics |
issn |
1029-8479 |
publishDate |
2017-06-01 |
description |
Abstract Based on the studies in Type IIB string theory phenomenology, we conjecture that a good fraction of the meta-stable de Sitter vacua in the cosmic stringy landscape tend to have a very small cosmological constant Λ when compared to either the string scale M S or the Planck scale M P , i.e., Λ ≪ M S 4 ≪ M P 4 . These low lying de Sitter vacua tend to be accompanied by very light scalar bosons/axions. Here we illustrate this phenomenon with the bosonic mass spectra in a set of Type IIB string theory flux compactification models. We conjecture that small Λ with light bosons is generic among de Sitter solutions in string theory; that is, the smallness of Λ and the existence of very light bosons (may be even the Higgs boson) are results of the statistical preference for such vacua in the landscape. We also discuss a scalar field ϕ 3 /ϕ 4 model to illustrate how this statistical preference for a small Λ remains when quantum loop corrections are included, thus bypassing the radiative instability problem. |
topic |
Strings and branes phenomenology |
url |
http://link.springer.com/article/10.1007/JHEP06(2017)094 |
work_keys_str_mv |
AT shhenrytye linkinglightscalarmodeswithasmallpositivecosmologicalconstantinstringtheory AT samscwong linkinglightscalarmodeswithasmallpositivecosmologicalconstantinstringtheory |
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1725312560884875264 |