Naturalness and Testability of TeV Seesaw Mechanisms

Zhi-zhong Xing

Naturalness and Testability of TeV Seesaw Mechanisms

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arxiv 0905.3903 v2 pith:36VJRTFJ submitted 2009-05-24 hep-ph

Zhi-zhong Xing This is my paper · ORCID

classification hep-ph

keywords collidermechanismsnaturalnessneutrinoseesawtestabilitybalancebesides

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After outlining some popular ways to go beyond the standard model so as to generate non-zero but tiny neutrino masses, I focus on several typical seesaw mechanisms and discuss how to get a balance between their theoretical naturalness and their experimental testability. Besides possible collider signatures at the Large Hadron Collider, new and non-unitary CP-violating effects are also expected to show up in neutrino oscillations for type-I, type-(I+II), type-III and double seesaws at the TeV scale.

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Emergent large flavor mixing from canonical and inverse seesaws?
hep-ph 2025-02 conditional novelty 3.0 of 10

Large neutrino mixing is not fixed by the seesaw mechanism's mass eigenvalues, so it must arise from additional flavor structure, and the inverse seesaw needs a fine-tuned cancellation.

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