Year: 2026
Type: article
Abstract: We present a phenomenological study of the discovery potential at the FCC-hh for a new heavy neutral vector boson, $$Z^{\prime }$$ Z ′ , predicted by the $$U(1)_{B-L}$$ U ( 1 ) B - L gauge symmetry. Focusing on the parameter space currently not excluded by Large Hadron Collider data, we analyze the dilepton production channel $$p p \rightarrow Z^{\prime } \rightarrow l^{+} l^{-}$$ p p → Z ′ → l + l - ( $$l^{\pm } = e^{\pm }, \mu ^{\pm }$$ l ± = e ± , μ ± ) at a center-of-mass energy of $$\sqrt{s} = 100$$ s = 100 TeV. Full Monte Carlo simulations were performed for different ( $$M_{Z'}$$ M Z ′ , $$g_{B-L}$$ g B - L ) BSM scenarios and relevant Standard Model backgrounds (including irreducible Drell-Yan, diboson, single top-quark and top-quark pair productions), identifying optimal kinematic selection cuts to guide future searches for this type of resonance. We estimate the FCC-hh reach for an integrated luminosity of $$\mathcal {L}_{int}$$ L int = 30 $$ab^{-1}$$ a b - 1 . Our results demonstrate that the FCC-hh at full operation can exclude $$Z^{\prime }$$ Z ′ masses up to $$\sim $$ ∼ 50 TeV with 95% C.L. for couplings of $$g_{B-L} \sim 1$$ g B - L ∼
Source: The European Physical Journal C
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: diamond
Funders: Simons Foundation, CERN, Fundação de Amparo à Pesquisa do Estado de São Paulo, Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, Conselho Nacional de Desenvolvimento Científico e Tecnológico, Financiadora de Estudos e Projetos, ICTP South American Institute for Fundamental Research, Max Planck Institute for Nuclear Physics, Agencia Nacional de Investigación y Desarrollo, Nuclear Physics, Fondo Nacional de Desarrollo Científico y Tecnológico
Awards: G181659532, G1895898068, G1971016581, G2418379896, G242948613, G2454384846, G2615926888, G2823776494, G2850378192, MODERN EXPERIMENT DETECTORS AND METHODS FOR HIGH ENERGY PHYSICS., G4121496537, G4699990819, G5752159476, CONSTRAINING PARTICLE PHYSICS BEYOND THE STANDARD MODELS AT COLLIDERS, G6535829382, EXPERIMENTS AND DETECTORS FOR LONG-LIVED PARTICLE SEARCHES AND PARTICLE DETECTOR APPLICATION IN MONITORING THE RADON GAS CONCENTRATION IN CHILE, G6955990215, G7229973587, G7734359731, G790621948, G8542391931
OpenAlex ID: W7118696769