Predictive one-zero with vanishing sub-trace texture in neutrino mass matrix in light of dark matter and neutrinoless double beta decay
Ankush, Sangeeta Dey, Rishu Verma, Manoj Kumar, B.C.Chauhan, Mahadev Patgiri

TL;DR
This paper explores specific neutrino mass matrix textures within the scotogenic model, linking neutrino properties, dark matter, and neutrinoless double beta decay, and identifies testable predictions for upcoming experiments.
Contribution
It introduces a class of neutrino mass textures with one zero and one vanishing sub-trace, establishing direct links between low-energy observables and high-scale model parameters.
Findings
Eleven textures predict TeV-scale dark matter masses.
Most textures yield correlated bounds on neutrinoless double beta decay.
One texture is excluded due to unrealistic Yukawa couplings.
Abstract
In this work, we investigate a predictive class of neutrino mass matrices characterized by one texture zero and one vanishing sub-trace within the framework of the scotogenic model, wherein neutrino masses, dark matter, and neutrinoless double beta decay are intrinsically correlated. We analyze twelve viable texture structures -- namely , , , and -- and examine their implications for the effective Majorana mass governing neutrinoless double beta decay . Remarkably, all non-zero entries of the neutrino mass matrix can be parametrized in terms of this effective Majorana mass, establishing a direct theoretical link between low-energy observables and high-scale parameters of the model. Among the twelve textures, eleven predict dark matter masses of order TeV and yield correlated bounds on -- making…
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Taxonomy
TopicsDark Matter and Cosmic Phenomena · Particle physics theoretical and experimental studies · Neutrino Physics Research
