Pseudo Dirac neutrinos in the seesaw model

Dutta, Gautam ; Joshipura, Anjan S. (1985) Pseudo Dirac neutrinos in the seesaw model Physical Review D - Particles, Fields, Gravitation and Cosmology, 51 (7). pp. 3838-3842. ISSN 1550-7998

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A specific class of textures for the Dirac and Majorana mass matrices in the seesaw model leading to a pair of almost degenerate neutrinos is discussed. These textures can be obtained by imposing a horizontal U(1) symmetry. A specific model is discussed in which (1) all three neutrino masses are similar in magnitude and could lie around 1 eV providing the hot component of the dark matter in the Universe, (2) two of these are highly degenerate and their (mass)2 difference could solve the solar neutrino problem through the large angle MSW solution, and (3) the electron neutrino mass may be observable through a Kurie plot as well as through a search of the neutrinoless double β decay.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:67607
Deposited On:31 Oct 2011 05:23
Last Modified:31 Oct 2011 05:23

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