The dark photon A′ and the dark Higgs boson h′ are hypothetical particles predicted in many dark sector models. We search for the simultaneous production of A′ and h′ in the dark Higgsstrahlung process e+e-→A′h′ with A′→μ+μ- and h′ invisible in electron-positron collisions at a center-of-mass energy of 10.58 GeV in data collected by the Belle II experiment in 2019.

Search for a Dark Photon and an Invisible Dark Higgs Boson in 𝜇+⁢𝜇− and Missing Energy Final States with the Belle II Experiment

Bianchi, F.;Destefanis, M.;Maggiora, M.;Marcello, S.;Spataro, S.;
2023-01-01

Abstract

The dark photon A′ and the dark Higgs boson h′ are hypothetical particles predicted in many dark sector models. We search for the simultaneous production of A′ and h′ in the dark Higgsstrahlung process e+e-→A′h′ with A′→μ+μ- and h′ invisible in electron-positron collisions at a center-of-mass energy of 10.58 GeV in data collected by the Belle II experiment in 2019.
2023
130
7
071804-1
071804-8
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.130.071804
Extensions of Higgs sector, Extensions of gauge sector, Invisible decays, Particle dark matter, Hypothetical gauge bosons, Lepton colliders
Abudinén, F.; Adachi, I.; Aggarwal, L.; Aihara, H.; Akopov, N.; Aloisio, A.; Anh Ky, N.; Asner, D. M.; Atmacan, H.; Aushev, T.; Aushev, V.; Babu, V.; ...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/2069035
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