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...
| Published in: | European Physical Journal C: Particles and Fields |
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| Main Authors: | , , |
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2025-06-01
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| Online Access: | https://doi.org/10.1140/epjc/s10052-025-14379-4 |