Non-split singularities and conifold transitions in F-theory

Abstract In F-theory, if a fiber type of an elliptic fibration involves a condition that requires an exceptional curve to split into two irreducible components, it is called “split” or “non-split” type depending on whether it is globally possible or not. In the latter case, the gauge symmetry is red...

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Main Authors: R. Kuramochi, S. Mizoguchi, T. Tani
Format: Article
Language:English
Published: SpringerOpen 2022-10-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP10(2022)070
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author R. Kuramochi
S. Mizoguchi
T. Tani
author_facet R. Kuramochi
S. Mizoguchi
T. Tani
author_sort R. Kuramochi
collection DOAJ
description Abstract In F-theory, if a fiber type of an elliptic fibration involves a condition that requires an exceptional curve to split into two irreducible components, it is called “split” or “non-split” type depending on whether it is globally possible or not. In the latter case, the gauge symmetry is reduced to a non-simply-laced Lie algebra due to monodromy. We show that this split/non-split transition is, except for a special class of models, a conifold transition from the resolved to the deformed side, associated with the conifold singularities emerging where the codimension-one singularity is enhanced to D 2k+2 (k ≥ 1) or E 7. We also examine how the previous proposal for the origin of non-local matter can be actually implemented in our blow-up analysis.
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spelling doaj.art-4f43fe12ce9b40d49c7557f18caf45152022-12-22T04:06:58ZengSpringerOpenJournal of High Energy Physics1029-84792022-10-0120221013710.1007/JHEP10(2022)070Non-split singularities and conifold transitions in F-theoryR. Kuramochi0S. Mizoguchi1T. Tani2SOKENDAI (The Graduate University for Advanced Studies)SOKENDAI (The Graduate University for Advanced Studies)National Institute of Technology, Kurume CollegeAbstract In F-theory, if a fiber type of an elliptic fibration involves a condition that requires an exceptional curve to split into two irreducible components, it is called “split” or “non-split” type depending on whether it is globally possible or not. In the latter case, the gauge symmetry is reduced to a non-simply-laced Lie algebra due to monodromy. We show that this split/non-split transition is, except for a special class of models, a conifold transition from the resolved to the deformed side, associated with the conifold singularities emerging where the codimension-one singularity is enhanced to D 2k+2 (k ≥ 1) or E 7. We also examine how the previous proposal for the origin of non-local matter can be actually implemented in our blow-up analysis.https://doi.org/10.1007/JHEP10(2022)070Differential and Algebraic GeometryF-TheoryCompactification and String Models
spellingShingle R. Kuramochi
S. Mizoguchi
T. Tani
Non-split singularities and conifold transitions in F-theory
Journal of High Energy Physics
Differential and Algebraic Geometry
F-Theory
Compactification and String Models
title Non-split singularities and conifold transitions in F-theory
title_full Non-split singularities and conifold transitions in F-theory
title_fullStr Non-split singularities and conifold transitions in F-theory
title_full_unstemmed Non-split singularities and conifold transitions in F-theory
title_short Non-split singularities and conifold transitions in F-theory
title_sort non split singularities and conifold transitions in f theory
topic Differential and Algebraic Geometry
F-Theory
Compactification and String Models
url https://doi.org/10.1007/JHEP10(2022)070
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AT smizoguchi nonsplitsingularitiesandconifoldtransitionsinftheory
AT ttani nonsplitsingularitiesandconifoldtransitionsinftheory