Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2002-01-02
Acta Phys.Polon. B33 (2002) 1747-1774
Physics
High Energy Physics
High Energy Physics - Phenomenology
23 pages, latex, no figures, misprints are corrected, and in order to make the paper more selfcontained some addenda are intro
Scientific paper
An effective texture is presented for six Majorana neutrinos, three active and three (conventional) sterile, based on a 6x6 mass matrix, whose 3x3 active--sterile component (i.e., Dirac component) is conjectured to get a fermion universal form similar to the constructed previously 3x3 mass matrix for charged leptons and 3x3 mass matrices for up and down quarks. This is true, however, when the bimaximal mixing, specific for neutrinos, is transformed out unitarily from the neutrino mass matrix. The 3x3 active--active component (i.e., lefthanded component) of neutrino 6x6 mass matrix is diagonal and gets degenerate entries. It dominates over the whole neutrino mass matrix. In such a texture, three neutrino masses are nearly degenerate, $ m_1 \simeq m_2 \simeq m_3 $, but their mass-squared differences appear hierarchical, $\Delta m^2_{21} \ll \Delta m^2_{32} \simeq \Delta m^2_{31}$, while the remaining three neutrino masses can be constructed to vanish, $ m_4 = m_5 = m_6 = 0 $, in contrast to the familiar seesaw mechanism.
No associations
LandOfFree
Search for fermion universality of the Dirac component of neutrino mass matrix does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Search for fermion universality of the Dirac component of neutrino mass matrix, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Search for fermion universality of the Dirac component of neutrino mass matrix will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-564959