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dc.contributor.authorSnow, W. Michael
dc.contributor.authorArif, Muhammad
dc.contributor.authorHeacock, Benjamin
dc.contributor.authorHuber, Michael G.
dc.contributor.authorLi, Ke
dc.contributor.authorPushin, Dimitry A.
dc.contributor.authorSkavysh, Vladimir
dc.contributor.authorYoung, Albert R. 19:41:16 (GMT) 19:41:16 (GMT)
dc.description.abstractThe physical origin of the dark energy, which is postulated to cause the accelerated expansion rate of the universe, is one of the major open questions of cosmology. A large subset of theories postulate the existence of a scalar field with a nonlinear coupling to matter chosen so that the effective range and/or strength of the field is greatly suppressed unless the source is placed in vacuum. We describe a measurement using neutron interferometry which can place a stringent upper bound on chameleon fields proposed as a solution to the problem of the origin of dark energy of the universe in the regime with a strongly-nolinear coupling term. In combination with other experiments searching for exotic short-range forces and laser-based measurements, slow neutron experiments are capable of eliminating this and many similar types of scalar-field-based dark energy models by laboratory experiments.en
dc.description.sponsorshipNSF grant PHY-1068712en
dc.description.sponsorshipIndiana University Center for the Exploration of Energy and Matteren
dc.description.sponsorshipIndiana University Center for Spacetime Symmetriesen
dc.description.sponsorshipCanadian Excellence Research, NSERC Discovery and CREATE Programen
dc.publisherIOP Publishingen
dc.rightsAttribution 3.0 Unported*
dc.subjectperfect crystalsen
dc.titleA sensitive search for dark energy through chameleon scalar fields using neutron interferometryen
dcterms.bibliographicCitationSnow, W. M., Arif, M., Heacock, B., Huber, M., Li, K., Pushin, D., … Young, A. R. (2015). A sensitive search for dark energy through chameleon scalar fields using neutron interferometry. Journal of Physics: Conference Series, 578, 012009. doi:10.1088/1742-6596/578/1/012009en
uws.contributor.affiliation1Faculty of Scienceen
uws.contributor.affiliation2Physics and Astronomyen

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Attribution 3.0 Unported
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