Weak mixing angle and proton stability in F-theory GUT

Kang Sin Choi; Bumseok Kyae

doi:10.1016/j.nuclphysb.2011.09.023

Weak mixing angle and proton stability in F-theory GUT

Kang Sin Choi, Bumseok Kyae

Scranton Honors Program

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

It is pointed out that a class of flipped SU(5) models based on F-theory naturally explains the gauge coupling unification. It is because the gauge group SU(5)×U(1)_X is embedded in SO(10) and E₈. To prohibit the dimension 4 and 5 proton decay processes, the structure group associated with monodromy should be SU(3)_⊥ or smaller. Extra heavy vector-like pairs of {5-2,52} except only one pair of Higgs should be disallowed, because they could induce the unwanted dimension 5 proton decays. We construct a simple global F-theory model considering these points. To maintain sin2θW0=38 at the GUT scale, the fluxes are turned on only on the flavor branes.

Original language	English
Pages (from-to)	1-20
Number of pages	20
Journal	Nuclear Physics, Section B
Volume	855
Issue number	1
DOIs	https://doi.org/10.1016/j.nuclphysb.2011.09.023
State	Published - 1 Feb 2012

Bibliographical note

Funding Information:
We are grateful to Eung-Jin Chun, Hirotaka Hayashi, Jonathan Heckman, Jihn E. Kim and Timo Weigand for discussion. This research is supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (Grant No. 2010-0009021 ).

Keywords

F-theory
Gauge coupling unification
Proton decay
Weak mixing angle

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10.1016/j.nuclphysb.2011.09.023

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title = "Weak mixing angle and proton stability in F-theory GUT",

abstract = "It is pointed out that a class of flipped SU(5) models based on F-theory naturally explains the gauge coupling unification. It is because the gauge group SU(5)×U(1)X is embedded in SO(10) and E8. To prohibit the dimension 4 and 5 proton decay processes, the structure group associated with monodromy should be SU(3)⊥ or smaller. Extra heavy vector-like pairs of {5-2,52} except only one pair of Higgs should be disallowed, because they could induce the unwanted dimension 5 proton decays. We construct a simple global F-theory model considering these points. To maintain sin2θW0=38 at the GUT scale, the fluxes are turned on only on the flavor branes.",

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AU - Kyae, Bumseok

N1 - Funding Information: We are grateful to Eung-Jin Chun, Hirotaka Hayashi, Jonathan Heckman, Jihn E. Kim and Timo Weigand for discussion. This research is supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (Grant No. 2010-0009021 ).

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N2 - It is pointed out that a class of flipped SU(5) models based on F-theory naturally explains the gauge coupling unification. It is because the gauge group SU(5)×U(1)X is embedded in SO(10) and E8. To prohibit the dimension 4 and 5 proton decay processes, the structure group associated with monodromy should be SU(3)⊥ or smaller. Extra heavy vector-like pairs of {5-2,52} except only one pair of Higgs should be disallowed, because they could induce the unwanted dimension 5 proton decays. We construct a simple global F-theory model considering these points. To maintain sin2θW0=38 at the GUT scale, the fluxes are turned on only on the flavor branes.

AB - It is pointed out that a class of flipped SU(5) models based on F-theory naturally explains the gauge coupling unification. It is because the gauge group SU(5)×U(1)X is embedded in SO(10) and E8. To prohibit the dimension 4 and 5 proton decay processes, the structure group associated with monodromy should be SU(3)⊥ or smaller. Extra heavy vector-like pairs of {5-2,52} except only one pair of Higgs should be disallowed, because they could induce the unwanted dimension 5 proton decays. We construct a simple global F-theory model considering these points. To maintain sin2θW0=38 at the GUT scale, the fluxes are turned on only on the flavor branes.

KW - F-theory

KW - Gauge coupling unification

KW - Proton decay

KW - Weak mixing angle

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JO - Nuclear Physics, Section B

JF - Nuclear Physics, Section B

IS - 1

ER -

Weak mixing angle and proton stability in F-theory GUT

Abstract

Bibliographical note

Keywords

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