New method to extract the neutron-electron scattering length

Mitsyna, L. V.; Nikolenko, V. G.; Parzhitski, S. S.; Popov, A.B.; Samosvat, G.S.

doi:10.1140/epjc/s2005-02134-0

Cited by 5 publications

(2 citation statements)

References 12 publications

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“…This correction is in the order of 1%. At the same time, even modern data on the neutron-electron scattering length are somewhat contradictory [13,14] and it is unobvious that their accuracy is adequate to the stated accuracy of the studies mentioned above, particularly [12] whose author noted that he used averaging of statistically incompatible data on the n-e scattering length. The first quantum neutron gravitational experiment was performed in 1975 by Colella et al [15], who observed the gravitationally induced phase shift of the neutron wave function in an experiment with a neutron interferometer.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Spectrometer for new gravitational experiment with UCN

Kulin

Frank

Goryunov

et al. 2015

Nuclear Instruments and Methods in Physics Research Section A:

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We describe an experimental installation for a new test of the weak equivalence principle for neutron. The device is a sensitive gravitational spectrometer for ultra-cold neutrons allowing to precisely compare the gain in kinetic energy of free falling neutrons to quanta of energy ${\hbar}{\Omega}$ transferred to the neutron via a non stationary device, i.e. a quantum modulator. The results of first test experiments indicate a collection rate allowing measurements of the factor of equivalence $ { \gamma}$ with a statistical uncertainty in the order of $5{\times}10^{-3}$ per day. A number of systematic effects were found, which partially can be easily corrected. For the elimination of others more detailed investigations and analysis are needed. Some possibilities to improve the device are also discussed.Comment: Submitted to NIM

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