corner
corner
APS » Journals » Phys. Rev. D » Volume 64 » Issue 11
< Previous Article | Next Article >

Phys. Rev. D 64, 117304 (2001) [2 pages]

Seesaw mechanism and four light neutrino states

Download: PDF (32 kB) Buy this article Export: BibTeX or EndNote (RIS)

M. Czakon*, J. Gluza, and M. Zrałek
Department of Field Theory and Particle Physics, Institute of Physics, University of Silesia, Uniwersytecka 4, PL-40-007 Katowice, Poland

Received 8 June 2001; published 13 November 2001

A formal proof is given that in a seesaw type neutrino mass matrix with only two neutrino mass scales (mD≪mR) we cannot get a fourth light sterile neutrino. That is, it is not possible to impose any symmetries on mD and/or mR matrices in order to drag a heavy state connected with the mR matrix to the low mass spectrum.

© 2001 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.64.117304
DOI:
10.1103/PhysRevD.64.117304
PACS:
14.60.Pq, 26.65.+t

*Present address: Institut für Theoretische Physik, Universität Karlsruhe, D-76128 Karlsruhe, Germany.

 
< Previous Article | Next Article >