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Measurement of the Electron-Antineutrino Angular Correlation in Neutron ß Decay.
Darius, G; Byron, W A; DeAngelis, C R; Hassan, M T; Wietfeldt, F E; Collett, B; Jones, G L; Dewey, M S; Mendenhall, M P; Nico, J S; Park, H; Komives, A; Stephenson, E J.
Afiliação
  • Darius G; Tulane University, New Orleans, Louisiana 70118, USA.
  • Byron WA; Tulane University, New Orleans, Louisiana 70118, USA.
  • DeAngelis CR; Tulane University, New Orleans, Louisiana 70118, USA.
  • Hassan MT; Tulane University, New Orleans, Louisiana 70118, USA.
  • Wietfeldt FE; Tulane University, New Orleans, Louisiana 70118, USA.
  • Collett B; Hamilton College, Clinton, New York 13323, USA.
  • Jones GL; Hamilton College, Clinton, New York 13323, USA.
  • Dewey MS; National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA.
  • Mendenhall MP; National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA.
  • Nico JS; National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA.
  • Park H; National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA.
  • Komives A; DePauw University, Greencastle, Indiana 46135, USA.
  • Stephenson EJ; Indiana University, Bloomington, Indiana 47408, USA.
Phys Rev Lett ; 119(4): 042502, 2017 Jul 28.
Article em En | MEDLINE | ID: mdl-29341742
ABSTRACT
We report the first result for the electron-antineutrino angular correlation (a coefficient) in free neutron ß decay from the aCORN experiment. aCORN uses a novel method in which the a coefficient is proportional to an asymmetry in proton time of flight for events where the ß electron and recoil proton are detected in delayed coincidence. Data are presented from a 15 month run at the NIST Center for Neutron Research. We obtained a=-0.1090±0.0030(stat)±0.0028(sys), the most precise measurement of the neutron a coefficient reported to date.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2017 Tipo de documento: Article