2000/03/31 by G. C. McLaughlin, J. N. Ng · 1 citation
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ph #nucl-th
paper · pdf · doi:10.1103/physrevd.63.053002
published as Phys.Rev. D63 (2001) 053002 · 21 pages, 4 figures. Two figures modified
arxiv created 2000/07/21 · openalex publication_date 2001/01/24 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Theories which include neutrinos in large extra dimensions can be constrained by nuclear \ensuremathβ decay experiments. We examine the universality of \ensuremathβ decay strengths of Fermi transitions. From this we find that the extra dimensional Yukawa coupling for a higher-dimensional scale of 10 TeV and two extra dimensions can be constrained to y\ensuremath\lesssim1. Kinematic implications are also discussed. In particular, an extra-dimensional scenario will produce a tritium decay end point spectrum with a different shape than that for just one massive state.