Searches for invisible axions

Rosenberg, L.; Bibber, Karl A. van

doi:10.1016/s0370-1573(99)00045-9

Cited by 144 publications

(138 citation statements)

References 60 publications

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“…Let us first calculate the contribution γ add z,1 into γ add z which originates from the first and third terms on the righthand side of Eq. (12). For these terms, the integration with respect to τ in Eq.…”

Section: Additional Force Arising From the Exchange Of Two Ax-ionmentioning

confidence: 99%

Constraints on the parameters of an axion from measurements of the thermal Casimir-Polder force

et al. 2014

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Stronger constraints on the pseudoscalar coupling constants of an axion and axion-like particles with a proton and a neutron are obtained from measurements of the thermal Casimir-Polder force between a Bose-Einstein condensate of 87 Rb atoms and a SiO 2 plate. For this purpose the additional force acting between a condensate cloud and a plate due to two-axion exchange is calculated. The obtained constraints refer to the axion masses from 0.1 meV to 0.3 eV which overlap with the region from 0.01 meV to 10 meV considered at the moment as the most prospective.

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Section: Additional Force Arising From the Exchange Of Two Ax-ionmentioning

confidence: 99%

Constraints on the parameters of an axion from measurements of the thermal Casimir-Polder force

et al. 2014

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“…They put severe constraints on axion-matter coupling in different axion mass ranges. A detailed review of axion studies can be found in [5,6].The recently reported positive results of the PVLAS experiment on light polarization rotation in a vacuum in the presence of a transverse magnetic field [7] may be seen as evidence of the long sought axion [8]. According to [7], the mass of neutral boson possibly responsible for the observed signal is 1 < M A < 1.5 meV.…”

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confidence: 97%

Constraint on the coupling of axionlike particles to matter via an ultracold neutron gravitational experiment

et al. 2007

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We present a new constraint for the axion monopole-dipole coupling in the range of 1 µm -a few mm, previously unavailable for experimental study. The constraint was obtained using our recent results on the observation of neutron quantum states in the Earth's gravitational field. We exploit the ultimate sensitivity of ultra-cold neutrons (UCN) in the lowest gravitational states above a material surface to any additional interaction between the UCN and the matter, if the characteristic interaction range is within the mentioned domain. In particular, we find that the upper limit for the axion monopole-dipole coupling constant is gpgs/( c) < 2 10 −15 for the axion mass in the "promising" axion mass region MA ∼ 1 meV.A vanishing value for the neutron electric dipole moment motivated the introduction of hypothetical light (pseudo) scalar bosons (commonly called axions), as an extension of the Standard Model [1,2,3,4]. According to the suggested theories the axion mass could be in the range of 10 −6 < M A < 10 −1 eV, while its coupling to photons, leptons and nucleons is not fixed by the existing models (though it is extremely weak). Following the theoretical predictions mentioned intensive searches for axions have been performed over recent decades. These studies include testing the astrophysical consequences of the axion theories, QED effects (axion-two photon coupling) and macroscopic forces (spin-matter coupling). They put severe constraints on axion-matter coupling in different axion mass ranges. A detailed review of axion studies can be found in [5,6].The recently reported positive results of the PVLAS experiment on light polarization rotation in a vacuum in the presence of a transverse magnetic field [7] may be seen as evidence of the long sought axion [8]. According to [7], the mass of neutral boson possibly responsible for the observed signal is 1 < M A < 1.5 meV.The value of the axion-photon coupling strength obtained from the PVLAS experiment is in contradiction with recent CAST observations [9]. Several ideas have been discussed recently, in [10,11], capable of explaining this discrepancy.This intriguing result makes it particularly important to carry out independent testing on the axion-matter coupling in the corresponding distance range of 130 < λ < 200 µm.In the present Letter we report on constraints for axion monopole-dipole coupling. Such coupling results in a spin-matter CP violating Yukawa-type interaction potential [12]between spin and matter, where g p g s is the product of couplings at the scalar and polarized vertices and λ is the force range. Here r is the distance between a neutron and a nucleus, n = r/r is a unitary vector, and m is the nucleon mass. Only a few experiments for distances below 100 mm have placed upper limits on the product coupling in a system of magnetized media and test masses [6]. One experiment [13] had peak sensitivity at ∼ 100 mm and two other ones [14,15] had peak sensitivity at ∼ 10 mm.The constraint for the g s g p presented in this article is competitive in the dista...

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“…Furthermore, the axion-photon mixing has been applied to explain several physical puzzling observations, for example to explain large scale polarization alignment in * ptiwari@physics.technion.ac.il distant quasars [27,[47][48][49][50][51], polarization properties of radio galaxies [11,19,52] and the dimming of distant supernovae [16,19,21]. In addition there are various experiments looking for direct and indirect observations of axions [12,22,[53][54][55][56][57][58][59][60][61][62][63][64][65][66][67][68][69][70][71][72].…”

Section: Introductionmentioning

confidence: 99%

Constraining axionlike particles using the distance-duality relation

Tiwari¹

2017

Phys. Rev. D

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One of the fundamental results used in observational cosmology is the distance duality relation (DDR), which relates the luminosity distance, DL, with angular diameter distance, DA, at a given redshift z. We employ the observed limits of this relation to constrain the coupling of axion like particles (ALPs) with photons. With our detailed 3D ALP-photon mixing simulation in standard ΛCDM universe and latest DDR limits observed in Holand & Barros (2016) we limit the coupling constant g φ ≤ 6 × 10 −13 GeV −1 nG B Mpc for ALPs of mass ≤ 10 −15 eV. The DDR observations can provide very stringent constraint on ALPs mixing in future. Also any deviation in DDR can be conventionally explained as photons decaying to axions or vice-versa.

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Searches for invisible axions

Cited by 144 publications

References 60 publications

Constraints on the parameters of an axion from measurements of the thermal Casimir-Polder force

Constraints on the parameters of an axion from measurements of the thermal Casimir-Polder force

Constraint on the coupling of axionlike particles to matter via an ultracold neutron gravitational experiment

Constraining axionlike particles using the distance-duality relation

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