scholarly journals aCORN: An experiment to measure the electron-antineutrino correlation coefficient in free neutron decay

2017 ◽  
Vol 88 (8) ◽  
pp. 083503 ◽  
Author(s):  
B. Collett ◽  
F. Bateman ◽  
W. K. Bauder ◽  
J. Byrne ◽  
W. A. Byron ◽  
...  
Keyword(s):  
Correlation Coefficient ◽  
Neutron Decay ◽  
Electron Antineutrino ◽  
Free Neutron

scholarly journals aCORN: Measuring the electron-antineutrino correlation in neutron beta decay

2019 ◽  
Vol 219 ◽  
pp. 04008
Author(s):  
F.E. Wietfeldt ◽  
W.A. Byron ◽  
B. Collett ◽  
G. Darius ◽  
C.R. DeAngelis ◽  
...  
Keyword(s):  
Beta Decay ◽  
Neutron Beam ◽  
Beam Line ◽  
Neutron Decay ◽  
High Flux ◽  
Proton Spectroscopy ◽  
Neutron Beta Decay ◽  
Require Precision ◽  
Electron Antineutrino ◽  
Free Neutron

The aCORN experiment uses a novel asymmetry method to measure the electron-antineutrino correlation (a-coefficient) in free neutron decay that does not require precision proton spectroscopy. aCORN completed two physics runs at the NIST Center for Neutron Research. The first run on the NG-6 beam line obtained the result a = 0.1090 +/- 0.0030 (stat) +/- 0.0028 (sys), the most precise to date. The second run on the new NG-C high flux beam line promises an improvement in precision to ¡ 2%. In addition we show that an improved measurement of the neutrino asymmetry (B-coefficient) can be made using the aCORN apparatus on a highly polarized neutron beam.

scholarly journals Improved determination of the β−ν¯e angular correlation coefficient a in free neutron decay with the aSPECT spectrometer

2020 ◽  
Vol 101 (5) ◽  
Author(s):  
M. Beck ◽  
F. Ayala Guardia ◽  
M. Borg ◽  
J. Kahlenberg ◽  
R. Muñoz Horta ◽  
...  
Keyword(s):  
Correlation Coefficient ◽  
Angular Correlation ◽  
Neutron Decay ◽  
Free Neutron

Ratio|gAgV|derived from the proton spectrum in free-neutron decay

1978 ◽  
Vol 18 (11) ◽  
pp. 3970-3979 ◽  
Author(s):  
Chr. Stratowa ◽  
R. Dobrozemsky ◽  
P. Weinzierl
Keyword(s):  
Neutron Decay ◽  
Proton Spectrum ◽  
Free Neutron

scholarly journals Measurements of the Neutron Lifetime

Atoms ◽  
2018 ◽  
Vol 6 (4) ◽  
pp. 70 ◽  
Author(s):  
F. Wietfeldt
Keyword(s):  
Nuclear Physics ◽  
Neutron Decay ◽  
Neutron Lifetime ◽  
The Past ◽  
Free Neutron ◽  
Mean Lifetime ◽  
Fundamental Process ◽  
Beam Method ◽  
The Subject ◽  
Particle Decays

Free neutron decay is a fundamental process in particle and nuclear physics. It is the prototype for nuclear beta decay and other semileptonic weak particle decays. Neutron decay played a key role in the formation of light elements in the early universe. The precise value of the neutron mean lifetime, about 15 min, has been the subject of many experiments over the past 70 years. The two main experimental methods, the beam method and the ultracold neutron storage method, give average values of the neutron lifetime that currently differ by 8.7 s (4 standard deviations), a serious discrepancy. The physics of neutron decay, implications of the neutron lifetime, previous and recent experimental measurements, and prospects for the future are reviewed.

scholarly journals Measurement of the neutron decay electron-antineutrino angular correlation by the aCORN experiment

2021 ◽  
Vol 103 (4) ◽  
Author(s):  
M. T. Hassan ◽  
W. A. Byron ◽  
G. Darius ◽  
C. DeAngelis ◽  
F. E. Wietfeldt ◽  
...  
Keyword(s):  
Angular Correlation ◽  
Neutron Decay ◽  
Decay Electron ◽  
Electron Antineutrino

scholarly journals A measurement of the antineutrino asymmetry B in free neutron decay

2005 ◽  
Vol 619 (3-4) ◽  
pp. 263-270 ◽  
Author(s):  
M. Kreuz ◽  
T. Soldner ◽  
S. Baeßler ◽  
B. Brand ◽  
F. Glück ◽  
...  
Keyword(s):  
Neutron Decay ◽  
Free Neutron
Sign in / Sign up

Export Citation Format

Share Document