Article ID Journal Published Year Pages File Type
1849059 Physics Letters B 2015 5 Pages PDF
Abstract

We present phase shift measurements for neutron matter waves in vacuum and in low pressure Helium using a method originally developed for neutron scattering length measurements in neutron interferometry. We search for phase shifts associated with a coupling to scalar fields. We set stringent limits for a scalar chameleon field, a prominent quintessence dark energy candidate. We find that the coupling constant β   is less than 1.9×1071.9×107 for n=1n=1 at 95% confidence level, where n is an input parameter of the self-interaction of the chameleon field φ   inversely proportional to φnφn.

Related Topics
Physical Sciences and Engineering Physics and Astronomy Nuclear and High Energy Physics
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