Search for a muonic dark force at BABAR



Lees, JP, Poireau, V, Tisserand, V, Grauges, E, Palano, A, Eigen, G, Brown, DN, Kolomensky, YG, Koch, H, Schroeder, T
et al (show 225 more authors) (2016) Search for a muonic dark force at BABAR. Physical Review D, 94.

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Abstract

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.

Item Type: Article
Depositing User: Symplectic Admin
Date Deposited: 13 Sep 2016 10:01
Last Modified: 17 Jan 2021 12:10
DOI: 10.1103/PhysRevD.94.011102
Open Access URL: https://arxiv.org/pdf/1606.03501v1
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3003251