Rare Z Decays and Neutrino Flavor Universality
(2016) Physical Review D — Vol. 93, n° 9, p. 93005 (2016)
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- Abstract
- We study rare four-body decays of the Z-boson involving at least one neutrino and one charged lepton. Large destructive interferences make these decays very sensitive to the Z couplings to neutrinos. As the identified charged leptons can determine the neutrino flavors, these decays probe the universality of the Z couplings to neutrinos. The rare four-body processes could be accurately measured at future lepton colliders, leading to percent level precision.
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Citations
Durieux, G., Grossman, Y., König, M., Kuflik, E., & Ray, S. (2016). Rare Z Decays and Neutrino Flavor Universality. Physical Review D, 93(9), 93005. https://doi.org/10.1103/PhysRevD.93.093005 (Original work published 2016)