Invisible decays of vector Charmonia and Bottomonia to determine the weak mixing angle at quarkonia scale

Abstract We compute the branching fractions of vector quarkonia ( $$V_Q=J/\psi , \psi ', \Upsilon (nS)$$ V Q = J / ψ , ψ ′ , Υ ( n S ) ) decays into neutrino pairs, considering both Dirac and Majorana types, within the Standard Model (SM) and beyond. The vector nature of quarkonium states yield...

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Bibliographic Details
Main Authors: G. Hernández-Tomé, C. S. Kim, G. López Castro
Format: Article
Language:English
Published: SpringerOpen 2025-06-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-025-14379-4
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