BSMPT v2 a tool for the electroweak phase transition and the baryon asymmetry of the universe in extended Higgs Sectors

We present the C++ code BSMPT v2 which is an extension of previous for calculation strength electroweak phase transition in extended Higgs sectors. The new version includes features and extends already implemented models (the 2-Higgs-Doublet model (2HDM) its CP-conserving CP-violating versions Next-to-2HDM) by Complex Singlet Extension Standard Model (CxSM). major upgrade implementation computation baryon asymmetry Universe 2HDM (C2HDM), performed two different approximations. These changes further smaller modifications are described this manual. Additionally, a detailed explanation procedure given, has also changed with respect to version. Program Title: CPC Library link program files: https://doi.org/10.17632/sjtp7bb33t.1 Licensing provisions: GPL-3.0 License Programming Language: C++14 Nature problem: Non-minimal sector provide non-trivial vacuum structures allow strong first order transition. Such one three Sakharov conditions that required dynamical generation observed universe (BAU) through actual baryogenesis requires solution quantum transport equation system describing non-thermal equilibrium state early during provides numerical tool investigate structure one-loop effective potential at finite temperature including thermal masses, arbitrary sector. It allows models. For (C2HDM) generated BAU calculated. latter task approaches formulation equations, given FH approach based on semi-classical force expectation value insertion method VIA. Solution Method: Numerical minimization minimizers, GSL, cmaes NLopt, determine relevant parameters dynamics critical criticial field configuration. Furthermore, updated it possible numerically solve C2HDM coupled differential equations calculate model. Additional comments restrictions unusual features: BSM extensions restricted New gauge bosons fermions would require adaption corrections potential, not v2. At present, only calculated C2HDM. In wall velocity input parameter assumed be small, VEV configuration kink profile assumed, nucleation approximated temperature.