JHEP JHEP, 2018, 10, pp.031. ⟨10.1007/JHEP10(2018)031⟩ Journal of high energy physics 1810(10), 031 (2018). doi:10.1007/JHEP10(2018)031 Journal of High Energy Physics Journal of High Energy Physics, Springer, 2018, 10, pp.031. ⟨10.1007/JHEP10(2018)031⟩