2004/10/31 by T. M. Ito, Takeyasu M. Ito, Gary Prezeau +1
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ex #hep-ph #nucl-ex
paper · pdf · doi:10.1103/physrevlett.94.161802
published as Phys.Rev.Lett. 94 (2005) 161802 · 4 pages, 3 figures; revised to reflect referee comments; accepted for publication in Physical Review Letters
arxiv created 2005/04/04 · openalex publication_date 2005/04/29 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Using the general connection between the upper limit on the neutrino mass and the upper limits on certain types of non-standard-model interactions that can generate loop corrections to the neutrino mass, we derive constraints on some non-standard-model d\ensuremath→ue^\ensuremath-\ensuremathν interactions. When cast into limits on n\ensuremath→pe^\ensuremath-\ensuremathν coupling constants, our results yield constraints on scalar and tensor weak interactions improved by more than an order of magnitude over the current experimental limits. When combined with the existing limits, our results yield |CS/CV|\ensuremath\lesssim5\ifmmode×\else\texttimes\fi10^\ensuremath-3, |CS^\ensuremath'/CV|\ensuremath\lesssim5\ifmmode×\else\texttimes\fi10^\ensuremath-3, |CT/CA|\ensuremath\lesssim1.2\ifmmode×\else\texttimes\fi10^\ensuremath-2, and |CT^\ensuremath'/CA|\ensuremath\lesssim1.2\ifmmode×\else\texttimes\fi10^\ensuremath-2.