Measurement of the total cross sections of ultracold neutrons with noble gases and search for long-range forces |
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| Authors: | A P Serebrov P Geltenbort O M Zherebtsov S V Sbitnev V E Varlamov A V Vassiljev M S Lasakov I A Krasnoschekova S N Ivanov |
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| Institution: | 1. Petersburg Nuclear Physics Institute, National Research Centre “Kurchatov Institute,”, Gatchina, 188300, Russia
2. Institute Laue Langevin, BP 156, 38042, Grenoble, France
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| Abstract: | The comparison of results of cross section measurements by the different methods can provide useful information on existence of long-range interaction. The total neutron cross sections of He, Ne, Ar, Kr, and Xe were measured using a method of ultracold neutrons. Measurements with ultra cold neutrons confirm the discrepancy between coherent cross-section of scattering for He measured by a neutron interferometer and scattering cross-section measured by the transmission method. The discrepancy makes up 5.3 standard deviations. |
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