Gravity localization and mass hierarchy in scalar-tensor branes

Ke Yang; Yu Xiao Liu; Yuan Zhong; Xiao Long Du; Shao Wen Wei

doi:10.1103/PhysRevD.86.127502

Gravity localization and mass hierarchy in scalar-tensor branes

Ke Yang
, Yu Xiao Liu
, Yuan Zhong
, Xiao Long Du
, Shao Wen Wei

Lanzhou University

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

47 Scopus citations

Abstract

We consider a braneworld model in the scalar-tensor gravity. In order to solve the gauge hierarchy problem in this model, our world should be confined on the positive tension brane rather than on the negative one. This is crucial to reproduce a correct Friedmann-like equation on the brane. Interestingly, it is found that the spacing of mass spectrum in this scenario is very tiny, but the light gravitons cannot be observed individually in colliders because of their sufficiently weak interaction with matter fields on the visible brane.

Original language	English
Article number	127502
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	86
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevD.86.127502
State	Published - 6 Dec 2012
Externally published	Yes

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10.1103/PhysRevD.86.127502

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title = "Gravity localization and mass hierarchy in scalar-tensor branes",

abstract = "We consider a braneworld model in the scalar-tensor gravity. In order to solve the gauge hierarchy problem in this model, our world should be confined on the positive tension brane rather than on the negative one. This is crucial to reproduce a correct Friedmann-like equation on the brane. Interestingly, it is found that the spacing of mass spectrum in this scenario is very tiny, but the light gravitons cannot be observed individually in colliders because of their sufficiently weak interaction with matter fields on the visible brane.",

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N2 - We consider a braneworld model in the scalar-tensor gravity. In order to solve the gauge hierarchy problem in this model, our world should be confined on the positive tension brane rather than on the negative one. This is crucial to reproduce a correct Friedmann-like equation on the brane. Interestingly, it is found that the spacing of mass spectrum in this scenario is very tiny, but the light gravitons cannot be observed individually in colliders because of their sufficiently weak interaction with matter fields on the visible brane.

AB - We consider a braneworld model in the scalar-tensor gravity. In order to solve the gauge hierarchy problem in this model, our world should be confined on the positive tension brane rather than on the negative one. This is crucial to reproduce a correct Friedmann-like equation on the brane. Interestingly, it is found that the spacing of mass spectrum in this scenario is very tiny, but the light gravitons cannot be observed individually in colliders because of their sufficiently weak interaction with matter fields on the visible brane.

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Gravity localization and mass hierarchy in scalar-tensor branes

Abstract

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