Long range forces from pseudoscalar exchange

Ferrer, Francesc; Grifols, J.A.

doi:10.1103/physrevd.58.096006

Cited by 64 publications

(102 citation statements)

References 14 publications

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“…(6) is that the most stringent laboratory limits on Yukawa couplings of pseudoscalars to protons, neutrons, (and ultimately quarks) arise from spin-independent equivalence principle experiments which constrain V (4) , rather than from spin-dependent experiments which are sensitive to V (2) . Since the couplings of axions to fermions involve derivatives, the resulting 2-axion potential varies as 1/r 5 rather than as 1/r 3 , as has been noted by Ferrer and Grifols [8]. Hence, the numerical results of the present paper do not apply to axions directly, although the present formalism can be taken over for axions with appropriate modifications.…”

mentioning

confidence: 78%

“…The laboratory constraints on pseudoscalar couplings derived in this paper are model independent, but do not apply to axions which are derivative-coupled [8]. Although the present formalism can be adapted to infer limits on axion couplings using the 1/r 5 potential arising from 2-axion exchange, the best existing limits on light axions still come from stellar cooling [16,17].…”

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confidence: 99%

“…The exchange of two pseudoscalars, as shown in Fig. 1, gives rise to a spin-independent potential V (4) (r) in order g 4 which has been calculated by a number of authors [7,8]. In the limit m → 0, V (4) (r) is given by…”

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confidence: 99%

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New Limits on the Couplings of Light Pseudoscalars from Equivalence Principle Experiments

Fischbach

Krause

1999

Phys. Rev. Lett.

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The exchange of light pseudoscalar quanta between fermions leads to longrange spin-dependent forces in order g 2 , where g is the pseudoscalar-fermion coupling constant. We demonstrate that laboratory bounds on the Yukawa couplings of pseudoscalars to nucleons can be significantly improved using results from recent equivalence principle experiments, which are sensitive to the spin-independent long-range forces that arise in order g 4 from twopseudoscalar exchange. 04.90.+e, 14.80.Mz Typeset using REVT E X 1

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confidence: 78%

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confidence: 99%

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New Limits on the Couplings of Light Pseudoscalars from Equivalence Principle Experiments

Fischbach

Krause

1999

Phys. Rev. Lett.

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“…Potentials with k = 5 may be produced by the simultaneous exchange of two massless pseudoscalar particles with γ 5 γ µ ∂ µ couplings such as axions or Goldstone bosons [24], or by a massless neutrino-antineutrino pair [27].…”

Section: Multi-particle Exchange Forcesmentioning

confidence: 99%

“…Potentials with k = 2 or k = 3 may be generated by the simultaneous exchange of two massless scalar [23] or γ 5 -coupled massless pseudoscalar [24] particles, respectively. The exchange of two massive pseudoscalar bosons having γ 5 couplings to fermions a and b with coupling constants g a and g b , produces a long-range, spin-independent exchange potential [25,26],…”

Section: Multi-particle Exchange Forcesmentioning

confidence: 99%

Submillimeter tests of the gravitational inverse-square law

et al. 2004

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Motivated by a variety of theories that predict new effects, we tested the gravitational 1/r 2 law at separations between 10.77 mm and 137 µm using two different 10-fold azimuthally symmetric torsion pendulums and rotating 10-fold symmetric attractors. Our work improves upon other experiments by up to a factor of about 100. We found no deviation from Newtonian physics at the 95% confidence level and interpret these results as constraints on extensions of the Standard Model that predict Yukawa or power-law forces. We set a constraint on the largest single extra dimension (assuming toroidal compactification and that one extra dimension is significantly larger than all the others) of R * ≤ 160 µm, and on two equal-sized large extra dimensions of R * ≤ 130 µm. Yukawa interactions with |α| ≥ 1 are ruled out at 95% confidence for λ ≥ 197 µm. Extra-dimensions scenarios stabilized by radions are restricted to unification masses M * ≥ 3.0 TeV/c 2 , regardless of the number of large extra dimensions. We also provide new constraints on power-law potentials V (r) ∝ r −k with k between 2 and 5 and on the γ5 couplings of pseudoscalars with m ≤ 10 meV/c 2 .

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Model‐independent constraints on r^‐3 extra‐interactions from orbital motions

Iorio

2012

Annalen der Physik

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Constraints on long-range power-law modifications Upert ∝ r −3 of the usual Newtonian gravitational potential UN ∝ r −1 are inferred from orbital motions of well known artificial and natural bodies. They can be interpreted in terms of a characteristic length ℓ which may be identified with, e.g., the anti-de Sitter (AdS) radius of curvature ℓ in the Randall-Sundrum (RS) braneworld model, although this not a mandatory choice. Our bounds, complementary to those from tabletop laboratory experiments, do not rely upon more or less speculative and untested theoretical assumptions, contrary to other long-range RS tests proposed in astrophysical scenarios in which many of the phenomena adopted may depend on the system's composition, formation and dynamical history as well. Independently of the interpretation of ℓ, the perihelion precession of Mercury and its radiotechnical ranging from the Earth yield ℓ 10 − 50 km. Tighter bounds come from the perigee precession of the Moon, from which it can be inferred ℓ 500 − 700 m. The best constraints (ℓ 5 m) come from the Satellite-to-Satellite Tracking (SST) range of the GRACE A/B spacecrafts orbiting the Earth: proposed follow-on of such a mission, implying a sub-nm s −1 range-rate accuracy, may constrain ℓ at ∼ 10 cm level. Weaker constraints come from the double pulsar system (ℓ 80 − 100 km) and from the main sequence star S2 orbiting the compact object in Sgr A * (ℓ 6.2 − 8.8 AU). Such bounds on the length ℓ, which must not necessarily be identified with the AdS radius of curvature of the RS model, naturally translate into constraints on an, e.g., universal coupling parameter K of the r −3 interaction. GRACE yields K ≤ 1 × 10 16 m 5 s −2 .

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Long range forces from pseudoscalar exchange

Cited by 64 publications

References 14 publications

New Limits on the Couplings of Light Pseudoscalars from Equivalence Principle Experiments

New Limits on the Couplings of Light Pseudoscalars from Equivalence Principle Experiments

Submillimeter tests of the gravitational inverse-square law

Model‐independent constraints on r^‐3 extra‐interactions from orbital motions

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Long range forces from pseudoscalar exchange

Cited by 64 publications

References 14 publications

New Limits on the Couplings of Light Pseudoscalars from Equivalence Principle Experiments

New Limits on the Couplings of Light Pseudoscalars from Equivalence Principle Experiments

Submillimeter tests of the gravitational inverse-square law

Model‐independent constraints on r‐3 extra‐interactions from orbital motions

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Product

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Model‐independent constraints on r^‐3 extra‐interactions from orbital motions