Short-range fundamental forces

Antoniadis, Ignatios; Baeßler, S.; Büchner, Matthias; Федоров, В. В.; Hoedl, S.; Lambrecht, Astrid; Nesvizhevsky, V. V.; Pignol, G.; Протасов, К. В.; Reynaud, Serge; Sobolev, Yu.

doi:10.1016/j.crhy.2011.05.004

Cited by 97 publications

(104 citation statements)

References 193 publications

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“…The emergent discussion for dark matter and dark energy triggered further use of UCNs to search for exotic physics beyond the Standard Model of particle physics, like searches for mirror matter [34][35][36], for Lorentz violation effects [37], for exotic interactions induced by axionlike particles [38][39][40][41][42], dark matter [43,44], or probing dark energy [45][46][47]. The sensitivities of all such UCN experiments depend directly on the total UCN statistics available in the measurement, hence on high UCN densities in sizeable storage vessels.…”

Section: Introductionmentioning

confidence: 99%

Comparison of ultracold neutron sources for fundamental physics measurements

et al. 2017

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Ultracold neutrons (UCNs) are key for precision studies of fundamental parameters of the neutron and in searches for new CP violating processes or exotic interactions beyond the Standard Model of particle physics. The most prominent example is the search for a permanent electric dipole moment of the neutron (nEDM). We have performed an experimental comparison of the leading UCN sources currently operating. We have used a 'standard' UCN storage bottle with a volume of 32 liters, comparable in size to nEDM experiments, which allows us to compare the UCN density available at a given beam port.

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Section: Introductionmentioning

confidence: 99%

Comparison of ultracold neutron sources for fundamental physics measurements

et al. 2017

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“…The presence of such a Yukawa-like force is sometimes dubbed "modified gravity." Experimental searches for such fifth forces between nucleons extend from nuclear to astronomic scales and lead to a landscape of exclusion regions, see summary plots in [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Bounding quantum dark forces

2018

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Dark sectors lying beyond the Standard Model and containing sub-GeV particles which are bilinearly coupled to nucleons would induce quantum forces of the Casimir-Polder type in ordinary matter. Such new forces can be tested by a variety of experiments over many orders of magnitude. We provide a generic interpretation of these experimental searches and apply it to a sample of forces from dark scalars behaving as 1=r 3 , 1=r 5 , 1=r 7 at short range. The landscape of constraints on such quantum forces differs from the one of modified gravity with Yukawa interactions and features, in particular, strong short-distance bounds from molecular spectroscopy and neutron scattering.

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“…A consequence of the present discussion is that gravitational laws are modified on the scale of the radius R, which is precisely the range of present experiments, such as the inverse square law tests (Kapner et al 2007;Adelberger et al 2009) or experiments aiming at measuring the Casimir force (Antoniadis et al 2011 …”

Section: Casimir Effect From a Higher Compact Dimensionmentioning

confidence: 97%

“…(22). This modification could be searched for in Casimir experiments operating at short distances, although present-day limits in those experiments are still several orders of magnitude above our prediction (Antoniadis et al 2011). …”

Section: Casimir Effect From a Higher Compact Dimensionmentioning

confidence: 99%

Can dark energy emerge from quantum effects in a compact extra dimension?

Dupays

Lamine

Blanchard

2013

A&A

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The origin of the accelerated expansion of the universe is a major problem in both modern cosmology and theoretical physics. In quantum field theory, simple estimations of the vacuum contribution to the density energy of the Universe are known to lead to catastrophically high values compared to observations. A gravitational Casimir effect from an additional compact dimension of space is known to lead to an effective cosmological constant. Nevertheless, such a contribution by itself is usually not regarded as a plausible source for accelerating the expansion, given the constraints on such scenarios. Here, we propose that the Casimir vacuum contribution of the gravitational field actually provides a low positive value to the density energy of the universe. The key new ingredient is to assume that only modes with shorter wavelengths than the Hubble radius contribute to the vacuum energy. Such a contribution gives a positive energy density, has a naturally Lorentz invariant equation of state in the usual 4D spacetime, and can thus be interpreted as a cosmological constant. Its value agrees with observations for a radius of a fifth extra dimension given by 35 µm. The implied modification of the gravitational inverse square law is close but below existing limits from experiments testing gravity at short range.

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Short-range fundamental forces

Cited by 97 publications

References 193 publications

Comparison of ultracold neutron sources for fundamental physics measurements

Comparison of ultracold neutron sources for fundamental physics measurements

Bounding quantum dark forces

Can dark energy emerge from quantum effects in a compact extra dimension?

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