TY - JOUR AU - Durieux, Gauthier AU - Grossman, Yuval AU - König, Matthias AU - Kuflik, Eric AU - Ray, Shamayita TI - Rare Z decays and neutrino flavor universality JO - Physical review / D VL - 93 IS - 9 SN - 2470-0010 CY - [S.l.] PB - Soc. M1 - PUBDB-2016-02010 M1 - DESY-15-235 M1 - arXiv:1512.03071 SP - 093005 PY - 2016 AB - 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. LB - PUB:(DE-HGF)16 UR - <Go to ISI:>//WOS:000376000700002 DO - DOI:10.1103/PhysRevD.93.093005 UR - https://bib-pubdb1.desy.de/record/299621 ER -