RooHammerModel: interfacing the HAMMER software tool with HistFactory and RooFit

Abstract Recent B -physics results have sparkled great interest in the search for beyond-the-Standard-Model (BSM) physics b ⟶ cℓν̅ transitions. The need to analyse a consistent manner big datasets these searches, using high-statistics Monte-Carlo (MC) samples, led development of HAMMER, software tool which enables perform fast morphing MC-derived templates include BSM effects and/or alternative parameterisations long-distance effects, avoiding re-generate simulated samples. This paper describes RooHammerModel, an interface between this and commonly-used data-fitting frameworks HistFactory RooFit. In document, structure functionality user are explained. Information public repository where it can be accessed is provided, as well validation performance studies interface. methods developed construction RooHammerModel provide useful information future attempts HAMMER with other frameworks.