期刊
PHYSICAL REVIEW D
卷 97, 期 3, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.97.035005
关键词
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资金
- DST INSPIRE Fellowship - Department of Science and Technology, India [DST/INSPIRE Fellowship/2014/IF140299]
- Department of Science and Technology, Govt. of India [SB/S2/HEP-011/2013]
- JC Bose National Fellowship under DST, India
- Science and Technology Facilities Council [ST/P00072X/1, ST/L000377/1, ST/J000515/1] Funding Source: researchfish
- STFC [ST/L000377/1, ST/P00072X/1, ST/J000515/1] Funding Source: UKRI
We discuss a class of left-right symmetric theories with a universal seesaw mechanism for fermion masses and mixing and the implications for neutrinoless double beta (0 nu beta beta) decay where neutrino masses are governed by natural type-II seesaw dominance. The scalar sector consists of left-and right-handed Higgs doublets and triplets, while the conventional Higgs bidoublet is absent in this scenario. We use the Higgs doublets to implement the left-right and the electroweak symmetry breaking. On the other hand, the Higgs triplets with induced vacuum expectation values can give Majorana masses to light and heavy neutrinos and mediate 0 nu beta beta decay. In the absence of the Dirac mass terms for the neutrinos, this framework can naturally realize type-II seesaw dominance even if the right-handed neutrinos have masses of a few TeV. We study the implications of this framework in the context of 0 nu beta beta decay.
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