Search for radiative beta-decay of the free neutron | Zendy

J. Byrne | Zendy; R. U. Khafizov | Zendy; Y.A. Mostovoi | Zendy; O. V. Rozhnov | Zendy; В. А. Соловей | Zendy; M. Beck | Zendy; В. Козлов | Zendy; N. Severijns | Zendy

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Search for radiative beta-decay of the free neutron

Author(s) -

J. Byrne,

R. U. Khafizov,

Y.A. Mostovoi,

O. V. Rozhnov,

В. А. Соловей,

M. Beck,

В. Козлов,

N. Severijns

Publication year - 2005

Publication title -

journal of research of the national institute of standards and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.202

H-Index - 59

eISSN - 2165-7254

pISSN - 1044-677X

DOI - 10.6028/jres.110.063

Subject(s) - scintillator , physics , nuclear physics , recoil , neutron , branching fraction , radiative transfer , detector , atomic physics , neutron detection , optics

Results of the first experiment to search for the radiative decay mode of the free neutron are reported. The γ-spectrum was studied in the energy region from 35 keV to 100 keV in six Cs(Tl) scintillators, each set at an angle of 35° to, and shielded from, a central plastic scintillator electron detector. Triple coincidences were recorded with recoil protons detected in a micro-channel plate. A limit for the branching ratio BR < 6.9 × 10(-3) (90 % confidence level) was obtained, which is greater that the theoretical prediction by not more than a few tenths of a percent.

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