aCORN: an experiment to measure the electron-antineutrino correlation coefficient in free neutron decay

Maynard S. Dewey; Fred B. Bateman; Wangchun  Chen; Thomas R. Gentile; Md. T. Hassan; Michael P. Mendenhall; Jeffrey S. Nico; Brian  Collett; Jim  Byrne; William  Byron; Guillaume  Darius; Christina  DeAngelis; Gordon L. Jones; Alexander  Komives; Alexander  Laptev; George  Noid; Hyeonseo  Park; Ed  Stephenson; I  Stern; K  Stockton; Bob  Trull; Fred  Wietfeldt; B G. Yerozolimsky

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PUBLICATIONS

aCORN: an experiment to measure the electron-antineutrino correlation coefficient in free neutron decay

Published

August 1, 2017

Author(s)

Maynard S. Dewey, Fred B. Bateman, Wangchun Chen, Thomas R. Gentile, Md. T. Hassan, Michael P. Mendenhall, Jeffrey S. Nico, Brian Collett, Jim Byrne, William Byron, Guillaume Darius, Christina DeAngelis, Gordon L. Jones, Alexander Komives, Alexander Laptev, George Noid, Hyeonseo Park, Ed Stephenson, I Stern, K Stockton, Bob Trull, Fred Wietfeldt, B G. Yerozolimsky

Abstract

We describe an apparatus used to measure the electron-neutrino angular correlation coefficient, a, in free neutron decay. The apparatus employs a novel measurement technique in which the angular correlation is converted into a proton time-of-flight asymmetry that is counted directly, avoiding the need for proton spectroscopy. Details of the method, apparatus, detectors, data acquisition, and data reduction scheme are presented, along with a discussion of the relevant systematic effects.

Citation

Review of Scientific Instruments

Volume

Pub Type

Journals

Keywords

Fundamental Symmetries, Neutron Decay, Beta Decay, Angular Correlation

Nuclear physics

Created August 1, 2017, Updated January 18, 2018