Skip to Main content Skip to Navigation
Journal articles

Neutron Interferometry constrains dark energy chameleon fields

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 $\beta$ is less than 1.9 $\times10^7$~for $n=1$ at 95\% confidence level, where $n$ is an input parameter of the self--interaction of the chameleon field $\varphi$ inversely proportional to $\varphi^n$.
Complete list of metadatas

http://hal.in2p3.fr/in2p3-01120940
Contributor : Emmanuelle Vernay <>
Submitted on : Friday, February 27, 2015 - 8:26:28 AM
Last modification on : Monday, July 20, 2020 - 9:18:30 AM

Links full text

Identifiers

Citation

H. Lemmel, Philippe Brax, A. N. Ivanov, T. Jenke, G. Pignol, et al.. Neutron Interferometry constrains dark energy chameleon fields. Physics Letters B, Elsevier, 2015, 743, pp.310-314. ⟨10.1016/j.physletb.2015.02.063⟩. ⟨in2p3-01120940⟩

Share

Metrics

Record views

441