Correlation between the Charged Current Interactions of Light and Heavy Majorana Neutrinos
| dc.creator | Xing, Zhi-zhong | |
| dc.date | 2007-09-14 | |
| dc.date | 2008-01-24 | |
| dc.date.accessioned | 2026-07-07T11:37:10Z | |
| dc.date.available | 2026-07-07T11:37:10Z | |
| dc.description | The evidence for neutrino oscillations implies that three neutrino flavors (ν_e, ν_μ, ν_τ) must have different mass states (ν_1, ν_2, ν_3). The most popular idea of generating tiny masses of ν_i is to introduce three heavy Majorana neutrinos N_i (for i = 1, 2, 3) into the standard model and implement the seesaw mechanism. In this approach the neutrino mixing matrix V appearing in the charged current interactions of ν_i is not unitary, and the strength of unitarity violation of V is associated with the matrix R which describes the strength of charged current interactions of N_i. We present an explicit parametrization of the correlation between V and R in terms of nine rotation angles and nine phase angles, which can be measured or constrained in the precision neutrino oscillation experiments and by exploring possible signatures of N_i at the LHC and ILC. Two special but viable scenarios, the Type-I seesaw model with two heavy Majorana neutrinos and the Type-II seesaw model with one heavy Majorana neutrino and one Higgs triplet, are taken into account to illustrate the simplified V-R correlation. The implications of R \neq 0 on the low-energy neutrino phenomenology are also discussed. In particular, we demonstrate that the non-unitarity of V is possible to give rise to an appreciable CP-violating asymmetry between ν_μ-> ν_τand \barν_μ-> \barν_τoscillations with short or medium baselines. | |
| dc.description | RevTex 13 pages (1 figure). Some minor corrections and changes. Accepted for publication in Phys. Lett. B | |
| dc.identifier | https://arxiv.org/abs/0709.2220 | |
| dc.identifier | http://arxiv.org/abs/0709.2220 | |
| dc.identifier | Phys.Lett.B660:515-521,2008 | |
| dc.identifier | doi:10.1016/j.physletb.2008.01.038 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/199117 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Correlation between the Charged Current Interactions of Light and Heavy Majorana Neutrinos | |
| dc.type | text |