Measurement of the neutron β-asymmetry parameter A0 with ultracold neutrons

Clicks: 171
ID: 266934
2012
Free PDF
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This article has not been analysed, so there is no overall score — reader engagement is measured and shown alongside.
AI Quality Assessment
Not analyzed
Readership in this journal
Emerging

Ranked #37 of 81 articles by views in physical review c

Most read Least read

Bar heights use a square-root scale.

Mint this article as an NFT
Not yet minted

Create a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.

5 SUSD one-off · no wallet required
Sign in to mint
Abstract
We present a detailed report of a measurement of the neutron $\ensuremath{\beta}$-asymmetry parameter ${A}_{0}$, the parity-violating angular correlation between the neutron spin and the decay electron momentum, performed with polarized ultracold neutrons (UCN). UCN were extracted from a pulsed spallation solid deuterium source and polarized via transport through a 7-T magnetic field. The polarized UCN were then transported through an adiabatic-fast-passage spin-flipper field region, prior to storage in a cylindrical decay volume situated within a 1-T $2\ifmmode\times\else\texttimes\fi{}2\ensuremath{\pi}$ solenoidal spectrometer. The asymmetry was extracted from measurements of the decay electrons in multiwire proportional chamber and plastic scintillator detector packages located on both ends of the spectrometer. From an analysis of data acquired during runs in 2008 and 2009, we report ${A}_{0}=\ensuremath{-}0.11966\ifmmode\pm\else\textpm\fi{}0.{00089}_{\ensuremath{-}0.00140}^{+0.00123}$, from which we extract a value for the ratio of the weak axial-vector and vector coupling constants of the nucleon, $\ensuremath{\lambda}={g}_{A}/{g}_{V}=\ensuremath{-}1.27590\ifmmode\pm\else\textpm\fi{}0.{00239}_{\ensuremath{-}0.00377}^{+0.00331}$. Complete details of the analysis are presented.
Reference Key
2012physicalmeasurement Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors
Journal physical review c
Year 2012
DOI
doi:10.1103/PhysRevC.86.055501
URL
https://doi.org/10.1103/physrevc.86.055501
Keywords

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.