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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/119410
Search for a muonic dark force at BaBar
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Many models of physics beyond the standard model predict the existence of new Abelian forces with new gauge bosons mediating interactions between "dark sectors" and the standard model. We report a search for a dark boson Z ′ coupling only to the second and third generations of leptons in the reaction e + e − → μ + μ − Z ′ , Z ′ → μ + μ − using 514 fb − 1 of data collected by the BABAR experiment. No significant signal is observed for Z ′ masses in the range 0.212-10 GeV. Limits on the coupling parameter g ′ as low as 7 × 10 − 4 are derived, leading to improvements in the bounds compared to those previously derived from neutrino experiments.
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GRAUGÉS POUS, Eugeni and BABAR Collaboration. Search for a muonic dark force at BaBar. Physical Review D. 2016. Vol. 94, num. 1, pags. 11102-1-11102-7. ISSN 1550-7998. [consulted: 18 of August of 2026]. Available at: https://hdl.handle.net/2445/119410