%0 Journal Article
%T Search for a New B-L Z' Gauge Boson with the NA64 Experiment at CERN
%A NA64 Collaboration (Andreev, Y. M. et al
%A Molina Bueno, L.
%J Physical Review Letters
%D 2022
%V 129
%F NA64CollaborationAndreev+MolinaBueno2022
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=5499), last updated on Thu, 30 Mar 2023 11:40:38 +0000
%X A search for a new Z′ gauge boson associated with (un)broken B−L symmetry in the keV–GeV mass range is carried out for the first time using the missing-energy technique in the NA64 experiment at the CERN SPS. From the analysis of the data with 3.22×10^11 electrons on target collected during 2016–2021 runs, no signal events were found. This allows us to derive new constraints on the Z′−e coupling strength, which, for the mass range 0.3≲ mZ′≲ 100  MeV, are more stringent compared to those obtained from the neutrino-electron scattering data.
%R 10.1103/PhysRevLett.129.161801
%U https://arxiv.org/abs/2207.09979
%U https://doi.org/10.1103/PhysRevLett.129.161801
%P 161801-6pp