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Constraints on NJL four-fermion effective interactions from neutrinoless double beta decay

Pacioselli, L.; Panella, O.; Presilla, M. 1; Xue, S.-S.
1 Institut für Experimentelle Teilchenphysik (ETP), Karlsruher Institut für Technologie (KIT)

Abstract:

We study the contribution of a heavy right-handed Majorana neutrino to neutrinoless double beta decay (0νββ) via four-fermion effective interactions of Nambu-Jona-Lasinio (NJL) type. In this physical scenario, the sterile neutrino contributes to the nuclear transition through gauge, contact, and mixed interactions. Using the lower limit on the half-life of 0νββ from the KamLAND-Zen experiment, we then constrain the effective right-handed coupling between the sterile neutrino and the W boson: $\mathcal{G}^W_R$. Eventually, we show that the obtained bounds are compatible with those found in the literature, which highlights the complementarity of this type of phenomenological study with high-energy experiments.


Volltext §
DOI: 10.5445/IR/1000165012
Veröffentlicht am 28.11.2023
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Experimentelle Teilchenphysik (ETP)
Publikationstyp Forschungsbericht/Preprint
Publikationsjahr 2023
Sprache Englisch
Identifikator KITopen-ID: 1000165012
Umfang 19 S.
Vorab online veröffentlicht am 17.04.2023
Nachgewiesen in Dimensions
arXiv
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