Cosmology with a very light Lμ − Lτ gauge boson

@article{Escudero2019CosmologyWA,
  title={Cosmology with a very light L$\mu$ − L$\tau$ gauge boson},
  author={M. Escudero and D. Hooper and G. Krnjaic and M. Pierre},
  journal={Journal of High Energy Physics},
  year={2019},
  volume={2019},
  pages={1-29}
}
A bstractIn this paper, we explore in detail the cosmological implications of an abelian Lμ − Lτ gauge extension of the Standard Model featuring a light and weakly coupled Z′. Such a scenario is motivated by the longstanding ∼ 4σ discrepancy between the measured and predicted values of the muon’s anomalous magnetic moment, (g − 2)μ, as well as the tension between late and early time determinations of the Hubble constant. If sufficiently light, the Z′ population will decay to neutrinos… Expand
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