The light MSSM Higgs boson mass for large $$\tan \beta $$ and complex input parameters Henning Bahl, Ivan Sobolev and Georg Weiglein Eur. Phys. J. C, 80 11 (2020) 1063 Published online: 18 November 2020 DOI: 10.1140/epjc/s10052-020-08637-w