Journal of Cosmology and Astroparticle Physics, 2020(11):031. IOP Publishing Ltd. JCAP JCAP, 2020, 11, pp.031. ⟨10.1088/1475-7516/2020/11/031⟩ Journal of Cosmology and Astroparticle Physics Journal of Cosmology and Astroparticle Physics, Institute of Physics (IOP), 2020, 2020 (11), pp.031-031. ⟨10.1088/1475-7516/2020/11/031⟩