首页 | 本学科首页   官方微博 | 高级检索  
     


An experiment for the measurement of the bound- β-decay of the free neutron
Authors:W. Schott  G. Dollinger  T. Faestermann  J. Friedrich  F. J. Hartmann  R. Hertenberger  N. Kaiser  A. R. Müller  S. Paul  A. Ulrich
Affiliation:1. Physik Department, Technische Universit?t München, D-85748, Garching, Germany
2. Institut für Angewandte Physik und Messtechnik, Universit?t der Bundeswehr München, D-85577, Neubiberg, Germany
3. Sektion Physik der Ludwig-Maximilians-Universit?t München, D-85748, Garching, Germany
Abstract:The hyperfine-state population of hydrogen after the bound-β-decay of the neutron directly yields the neutrino left-handedness or a possible right-handed admixture and possible small scalar and tensor contributions to the weak force. Using the through-going beam tube of a high-flux reactor, a background free hydrogen rate of ca. 3s^-1 can be obtained. The detection of the neutral hydrogen atoms and the analysis of the hyperfine states is accomplished by Lamb shift source type quenching and subsequent ionization. The constraints on the neutrino helicity and the scalar and tensor coupling constants of the weak interaction can be improved by a factor of ten.
Keywords:13.30.Ce Leptonic, semileptonic, and radiative decays  14.20.Dh Protons and neutrons
本文献已被 SpringerLink 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号