A review of short-range gravity experiments in the LHC era

Murata, J.; Tanaka, Saki

doi:10.1088/0264-9381/32/3/033001

Cited by 179 publications

(283 citation statements)

References 77 publications

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“…This potential is very interesting because it regularises the divergent behaviour of Newton's potential at small distances. Furthermore, at scales where the deviations start to be important, it is similar to the potentials that have been considered to constrain the deviations from Newton's law at short distances [40,41,42] …”

Section: Modifications At Short Distancesmentioning

confidence: 99%

Phenomenology of theories of gravity without Lorentz invariance: The preferred frame case

Blas

Lim

2014

Int. J. Mod. Phys. D

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Section: Modifications At Short Distancesmentioning

confidence: 99%

Phenomenology of theories of gravity without Lorentz invariance: The preferred frame case

Blas

Lim

2014

Int. J. Mod. Phys. D

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“…[41][42][43] In addition, in 15,44,45 it was shown that from inflationary cosmology one obtains huge mass of dilaton: . A natural way to avoid the obvious strong tension between these very different estimates in the framework of MDG seems to be the assumption that in Nature we have a withholding dilatonic potential V (Φ) with several minima 7 that show up at different scales as different values of the dilaton mass m Φ .…”

Section: -40mentioning

confidence: 99%

Compact static stars in minimal dilatonic gravity

Fiziev

2017

Mod. Phys. Lett. A

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In the version 1 of this paper we presented for the first time the basic equations and relations for relativistic static spherically symmetric stars (SSSS) in the model of minimal dilatonic gravity (MDG). This model is locally equivalent to the f(R) theory of gravity and gives an alternative description of the effects of dark matter and dark energy using the Branse-Dicke dilaton Φ. To outline the basic properties of the MDG model of SSSS and to compare them with general relativistic results, in the present paper we use the relativistic equation of state (EOS) of neutron matter as an ideal Fermi neutron gas at zero temperature. We overcome the well-known difficulties of the physics of SSSS in the f(R) theories of gravity 2, 3 applying novel highly nontrivial nonlinear boundary conditions, which depend on the global properties of the solution and on the EOS. We also introduce two pairs of new notions: cosmological-energy-pressure densities and dilaton-energy-pressure densities, as well as two new EOS for them: cosmological EOS (CEOS) and dilaton EOS (DEOS). Special attention is paid to the dilatonic sphere (in brief -disphere) of SSSS, introduced in this paper for the first time. Using several realistic EOS for neutron star (NS): SLy, BSk19, BSk20 and BSk21, and current observational two-solar-masses-limit, we derive an estimate for scalar-field-mass m Φ ∼ 10 −13 eV /c 2 ÷ 4 × 10 −11 eV /c 2 . Thus, the present version of the paper reflects some of the recent developments of the topic.

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“…Direct tests on deviation of the inverse square law at short distances, based on modern versions of torsionbalance instrument, have been used with the purpose of searching for signals of extra dimensions. In these experiments, the modified gravitational potential is parameterized as G M/r 1 + αe −r/λ , where, in the ADD model, α = 8n/3 and λ is equal to the radius R of the extra dimensions [35][36][37][38]. From the empirical constraints on α and λ, upper bounds for R are inferred for each value of n. For instance, for n = 1 and n = 2, the data imply that R < 44μm and R < 37μm, respectively, which corresponds (see, the relation between R and M D in the appendix) to M D > 3.6 TeV for n = 2 [37,57].…”

Section: The Gravitational Energy Of An Atom In a Thick Branementioning

confidence: 99%

Is the proton radius puzzle evidence of extra dimensions?

Dahia

Lemos

2016

Eur. Phys. J. C

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The proton charge radius inferred from muonic hydrogen spectroscopy is not compatible with the previous value given by CODATA-2010, which, on its turn, essentially relies on measurements of the electron-proton interaction. The proton's new size was extracted from the 2S-2P Lamb shift in the muonic hydrogen, which showed an energy excess of 0.3 meV in comparison to the theoretical prediction, evaluated with the CODATA radius. Higher-dimensional gravity is a candidate to explain this discrepancy, since the muonproton gravitational interaction is stronger than the electronproton interaction and, in the context of braneworld models, the gravitational potential can be hugely amplified in short distances when compared to the Newtonian potential. Motivated by these ideas, we study a muonic hydrogen confined in a thick brane. We show that the muon-proton gravitational interaction modified by extra dimensions can provide the additional separation of 0.3 meV between the 2S and 2P states. In this scenario, the gravitational energy depends on the higher-dimensional Planck mass and indirectly on the brane thickness. Studying the behavior of the gravitational energy with respect to the brane thickness in a realistic range, we find constraints for the fundamental Planck mass that solve the proton radius puzzle and are consistent with previous experimental bounds.

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A review of short-range gravity experiments in the LHC era

Cited by 179 publications

References 77 publications

Phenomenology of theories of gravity without Lorentz invariance: The preferred frame case

Phenomenology of theories of gravity without Lorentz invariance: The preferred frame case

Compact static stars in minimal dilatonic gravity

Is the proton radius puzzle evidence of extra dimensions?

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