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Study of the neutron quantum states in the Earth's gravitational field

Abstract : We studied the neutron quantum states in the potential well formed by the Earth's gravitational field and a horizontal mirror. The estimated characteristic sizes of the neutron wave functions in two lowest quantum states correspond to their expectations with an accuracy of ~25%. A spatial density distribution in a standing neutron wave above a mirror was measured for a set of a few lowest quantum states. A position-sensitive neutron detector with an extra high spatial resolution of 1-2 mu m was developed and tested for this particular task. Although this experiment was not designed or optimized to search for an additional short-range force, nevertheless it allowed us to slightly improve the published boundary in the nanometer range of characteristic distances. We studied systematical uncertainties in the chosen "flow-through" method as well as the feasibility to improve further the accuracy in this experiment
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Conference papers
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http://hal.in2p3.fr/in2p3-00119666
Contributor : Lpsc Bibliotheque <>
Submitted on : Tuesday, December 12, 2006 - 10:34:43 AM
Last modification on : Monday, July 20, 2020 - 9:18:24 AM

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  • HAL Id : in2p3-00119666, version 1

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V.V. Nesvizhevsky, H.G. Borner, T.A. Baranova, G.A. Petrov, K.V. Protasov, et al.. Study of the neutron quantum states in the Earth's gravitational field. XIII International Seminar on Interaction of Neutron with Nuclei (ISINN-13), May 2005, Dubna, Russia. pp.249-255. ⟨in2p3-00119666⟩

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