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Bounds on Compositeness from Neutrinoless Double Beta Decay

Orlando Panella·Yogendra N. Srivastava
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Abstract

Assuming the existence of a heavy Majorana neutral particle arising from a composite model scenario we discuss the constraints imposed by present experimental limits of half-life neutrinoless double beta decay $(0νββ) $ measurements on the coupling of the heavy composite neutrinos to the gauge bosons. For neutrino masses $M_N = 1 $ TeV we obtain a rather weak lower bound on the compositeness scale: $Λ\ge 0.23 $ TeV.

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Orlando Panella, Yogendra N. Srivastava. 1994-11-07. Bounds on Compositeness from Neutrinoless Double Beta Decay. https://doi.org/10.1103/physrevd.52.5308

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