2005/05/19 by Ambar Ghosal, Debasish Majumdar
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.1142/s021773230601944x
published as Mod.Phys.Lett. A21 (2006) 1067-1073 · 4 pages, 2 figures
arxiv created 2005/05/19 · openalex publication_date 2006/04/28 · arxiv updated 2009/12/01 · openalex created_date 2020/11/23 · openalex updated_date 2026/07/28
We demonstrate that "Bimaximal + Democratic" type neutrino mass matrix can accommodate the deviation of θ ⊙ from its maximal value along with the other present-day neutrino experimental results, namely, atmospheric, CHOOZ, neutrinoless double beta decay (ββ 0ν ) and result obtained from WMAP experiment. We define a function χ p in terms of solar and atmospheric neutrino mass squared differences and solar neutrino mixing angle (obtained from different experiments and our proposed texture). The masses and mixing angles are expressed in terms of three parameters in our proposed texture. The allowed region of the texture parameters is obtained through minimization of the above function. The proposed texture crucially depends on the value of the experimental results of ββ 0ν experiment among all other above-mentioned experiments. If, in future, ββ 0ν experiments, namely, MOON, EXO, GENIUS shift the lower bound on 〈m ee 〉 at the higher side by one order, the present texture will be ruled out.