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A sensitive search for dark energy through chameleon scalar fields using neutron interferometry

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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.
dc.date.accessioned2018-09-11T19:41:16Z
dc.date.available2018-09-11T19:41:16Z
dc.date.issued2015-01-22
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.identifier.urihttps://dx.doi.org/10.1088/1742-6596/578/1/012009
dc.identifier.urihttp://hdl.handle.net/10012/13795
dc.language.isoenen
dc.publisherIOP Publishingen
dc.rightsAttribution 3.0 Unported*
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/*
dc.subjectperfect crystalsen
dc.subjectstorageen
dc.subjectsupernovaeen
dc.subjectspaceen
dc.titleA sensitive search for dark energy through chameleon scalar fields using neutron interferometryen
dc.typeArticleen
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
uws.peerReviewStatusRevieweden
uws.scholarLevelFacultyen
uws.typeOfResourceTexten
uws.typeOfResourceRevieweden

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