Brane Fluctuations and Suppression of Kaluza-Klein Mode Couplings

Bandō, Masako; Kugo, Taichiro; Noguchi, Taro; Yoshioka, Koichi

doi:10.1103/physrevlett.83.3601

Cited by 140 publications

(190 citation statements)

References 30 publications

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“…GDR on the visible brane is generated by inhomogeneities on the hidden brane due, for example, to bulk-brane interactions and brane fluctuations [9]. We will show that the amount of GDR depends on the size of extra dimensions and the length scale of brane perturbations.…”

Section: Introductionmentioning

confidence: 99%

Gravitational diffraction radiation

2006

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We show that if the visible universe is a membrane embedded in a higher-dimensional space, particles in uniform motion radiate gravitational waves because of spacetime lumpiness. This phenomenon is analogous to the electromagnetic diffraction radiation of a charge moving near to a metallic grating. In the gravitational case, the role of the metallic grating is played by the inhomogeneities of the extra-dimensional space, such as a hidden brane. We derive a general formula for gravitational diffraction radiation and apply it to a higher-dimensional scenario with flat compact extra dimensions. Gravitational diffraction radiation may carry away a significant portion of the particle's initial energy. This allows to set stringent limits on the scale of brane perturbations. Physical effects of gravitational diffraction radiation are briefly discussed.

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Section: Introductionmentioning

confidence: 99%

Gravitational diffraction radiation

2006

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“…Indeed, if one includes in the interaction the brane Goldstone modes, a form factor ∼ e −m 2 /M 2 D is introduced at each graviton vertex [265]. This exponential suppression, which parametrizes the effects of a finite brane tension, provides a dynamical cutoff in the (otherwise divergent) sum over all KK contributions to a given scattering amplitude.…”

Section: B Neutrino Interactions Mediated By Gravitymentioning

confidence: 99%

High energy physics in the atmosphere: phenomenology of cosmic ray air showers

et al. 2004

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The properties of cosmic rays with energies above 10 6 GeV have to be deduced from the spacetime structure and particle content of the air showers which they initiate. In this review we summarize the phenomenology of these giant air showers. We describe the hadronic interaction models used to extrapolate results from collider data to ultra high energies, and discuss the prospects for insights into forward physics at the LHC. We also describe the main electromagnetic processes that govern the longitudinal shower evolution, as well as the lateral spread of particles. Armed with these two principal shower ingredients and motivation from the underlying physics, we provide an overview of some of the different methods proposed to distinguish primary species. The properties of neutrino interactions and the potential of forthcoming experiments to isolate deeply penetrating showers from baryonic cascades are also discussed. We finally venture into a terra incognita endowed with TeV-scale gravity and explore anomalous neutrino-induced showers.

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“…In this appendix, we demonstrate the non-relativistic approximation for fermion in the action (25), and drive the magnetic moment. Varying the action with respect toψ, we obtain the equation of motion:…”

Section: Appendix: the Schödinger Approximationmentioning

confidence: 99%

“…Y m is considered as the Nambu-Goldstone mode associated with the spontaneous isometry breaking due to the presence of the brane in bulk [8][12] [24,25,26,27]. Before discussing muon (g-2), the relation between the brane fluctuations and the scaling property mentioned in section III should be noted.…”

Section: Application To Muon (G-2)mentioning

confidence: 99%

Muon anomalous magnetic moment due to the brane stretching effect

Sawa

2006

Phys. Rev. D

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We investigate the contribution of extra dimensions to the muon anomalous magnetic moment by using an ADD-type 6-dimensional model. This approach analyzes the extent of the influence of classical brane fluctuations on the magnetic moment. When we consider that the brane fluctuations are static in time, they add new potential terms to the Schrödinger equation through the induced vierbein. This paper shows that the brane fluctuation is responsible for the brane-stretching effect.This effect would be capable of reproducing the appropriate order for recent Brookhaven National Laboratory measurements of the muon (g-2) deviation.

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Brane Fluctuations and Suppression of Kaluza-Klein Mode Couplings

Cited by 140 publications

References 30 publications

Gravitational diffraction radiation

Gravitational diffraction radiation

High energy physics in the atmosphere: phenomenology of cosmic ray air showers

Muon anomalous magnetic moment due to the brane stretching effect

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