Brief Review of the Results Regarding the Possible Underlying Mechanisms Driving the Neutrinoless Double Beta Decay

Frontiers in Physics

卷:9

Sabin Stoica¹  Andrei Neacsu²  Vasile Alin Sevestrean³ 

[1] D in Physics and Nuclear Engineering, Department of Theoretical Physics, Mgurele, Romania;

[2] Horia Hulubei National Institute for R&

[3] International Centre for Advanced Training and Research in Physics, Mgurele, Romania;

关键词: double beta decay;    nuclear matrix elements;    phase-space factors;    shell model;    beyond standard model;    neutrino;   

DOI  :  10.3389/fphy.2021.666591

来源: DOAJ

【 摘 要 】

Since the experimental discovery of neutrino oscillations, the search for the neutrinoless double beta (0νββ) decay has intensified greatly, as this particular decay mode, if experimentally discovered, could offer a testing ground for Beyond Standard Model (BSM) theories related to the yet hidden fundamental properties of neutrinos and the possibility of violating of some fundamental symmetries. In this work we make a brief review of the nuclear matrix elements and phase space factors calculations performed mainly by our group. Next, using these calculations and the most recent experimental half-life limits, we revise the constraints on the BSM parameters violating the lepton number corresponding to four mechanisms that could contribute to 0νββ decay. Finally, using the values obtained for the BSM parameters from one of the most sensitive double-beta decay experiments, we provide a comparison with the sensitivities of other experiments.

【 授权许可】

Unknown