Browsing by Author "Poduje Reyes, Mariel Luz"

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    Long Lived Heavy Neutral Leptons from Z' decays at FCC-ee
    (2025) Poduje Reyes, Mariel Luz; Cottin Buracchio, Giovanna Francesca; Pontificia Universidad Católica de Chile. Facultad de Física
    Westudy the phenomenology of a U(1)B−L extension of the Standard Model (SM) predicting long-lived heavy neutral leptons (HNLs), which are pair produced from a new gauge boson Z’ with displaced vertex signatures at the electron positron mode of the Future Circular Collider (FCC-ee). Progress on sensitivity prospects are provided in the 1-100GeV mass scale for the B-L gauge coupling g′ = 10−3 and 10−4, and HNL-light neutrino mixing |VµN|2 = 10−8 − 10−20, a region that has not been constrained by the Large Hadron Collider (LHC). Exclusion curves are obtained for a configuration of the IDEA detector with and without a LAYCAST-like far detector on the HNL vs Z’ mass plane (MN −MZ′) and the HNLmass vs heavy-light squared neutrino mixing plane (MN − |VµN|2)