Seminatural gauge mediation from product group unification

Hajime Fukuda; Hitoshi Murayama; Tsutomu T. Yanagida; Norimi Yokozaki

doi:10.1103/PhysRevD.92.055032

Seminatural gauge mediation from product group unification

Hajime Fukuda, Hitoshi Murayama, Tsutomu T. Yanagida, Norimi Yokozaki

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

6 Citations (Scopus)

Abstract

We propose a focus point gauge mediation model based on the product group unification (PGU), which solves the doublet-triplet splitting problem of the Higgs multiplets. In the focus point gauge mediation, the electroweak symmetry breaking scale can be naturally explained even for multi-TeV stops. It is known that the focus point behavior appears if a ratio of the number of SU(2) doublet messengers to that of SU(3) triplet messengers is close to 5/2. Importantly, this ratio (effectively) appears in our scenario based on the PGU, if the messenger field is an adjoint representation of the SU(5) gauge group. Therefore, our focus point scenario is very predictive. It is also pointed out that the gravitino can be dark matter without spoiling the success of the thermal leptogenesis.

Original language	English
Article number	055032
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	92
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevD.92.055032
Publication status	Published - 2015 Sep 29
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)

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10.1103/PhysRevD.92.055032

Cite this

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title = "Seminatural gauge mediation from product group unification",

abstract = "We propose a focus point gauge mediation model based on the product group unification (PGU), which solves the doublet-triplet splitting problem of the Higgs multiplets. In the focus point gauge mediation, the electroweak symmetry breaking scale can be naturally explained even for multi-TeV stops. It is known that the focus point behavior appears if a ratio of the number of SU(2) doublet messengers to that of SU(3) triplet messengers is close to 5/2. Importantly, this ratio (effectively) appears in our scenario based on the PGU, if the messenger field is an adjoint representation of the SU(5) gauge group. Therefore, our focus point scenario is very predictive. It is also pointed out that the gravitino can be dark matter without spoiling the success of the thermal leptogenesis.",

author = "Hajime Fukuda and Hitoshi Murayama and Yanagida, {Tsutomu T.} and Norimi Yokozaki",

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AU - Fukuda, Hajime

AU - Murayama, Hitoshi

AU - Yanagida, Tsutomu T.

AU - Yokozaki, Norimi

PY - 2015/9/29

Y1 - 2015/9/29

N2 - We propose a focus point gauge mediation model based on the product group unification (PGU), which solves the doublet-triplet splitting problem of the Higgs multiplets. In the focus point gauge mediation, the electroweak symmetry breaking scale can be naturally explained even for multi-TeV stops. It is known that the focus point behavior appears if a ratio of the number of SU(2) doublet messengers to that of SU(3) triplet messengers is close to 5/2. Importantly, this ratio (effectively) appears in our scenario based on the PGU, if the messenger field is an adjoint representation of the SU(5) gauge group. Therefore, our focus point scenario is very predictive. It is also pointed out that the gravitino can be dark matter without spoiling the success of the thermal leptogenesis.

AB - We propose a focus point gauge mediation model based on the product group unification (PGU), which solves the doublet-triplet splitting problem of the Higgs multiplets. In the focus point gauge mediation, the electroweak symmetry breaking scale can be naturally explained even for multi-TeV stops. It is known that the focus point behavior appears if a ratio of the number of SU(2) doublet messengers to that of SU(3) triplet messengers is close to 5/2. Importantly, this ratio (effectively) appears in our scenario based on the PGU, if the messenger field is an adjoint representation of the SU(5) gauge group. Therefore, our focus point scenario is very predictive. It is also pointed out that the gravitino can be dark matter without spoiling the success of the thermal leptogenesis.

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Seminatural gauge mediation from product group unification

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