Search for a New B-L Z′ Gauge Boson with the NA64 Experiment at CERN
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Date
2022-10-14
Profesor/a Guía
Facultad/escuela
Idioma
en
Journal Title
Journal ISSN
Volume Title
Publisher
American Physical Society
Nombre de Curso
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Attribution 4.0 International (CC BY 4.0)
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https://creativecommons.org/licenses/by/4.0/
Abstract
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 3.22×1011 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 0.3mZ′ 100 MeV, are more stringent compared to those obtained from the neutrino-electron scattering data. © 2022 authors. Published by the American Physical Society.
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Indexación: Scopus.
Keywords
Bosons, Gages, Germanium alloys, Coupling strengths, Gauge bosons, Missing energy, Scattering data, Stringents, Electron scattering
Citation
Physical Review Letters, Volume 129, Issue 16, 14 October 2022, Article number 161801
DOI
10.1103/PhysRevLett.129.161801