with a focus on possibly important low-energy processes. This generic setup will itself be used as a benchmark configuration, of which we shall explore two limiting regimes. These three cases characterize new benchmark models (dubbed , , and —see ) that are aimed at capturing different theoretical assumptions, while still being data driven. These configurations will be shown to provide excellent fits to the current B/C data assuming simple power-law primary CR spectra. Not only may this stimulate further microphysical interpretations, but it also offers a basis for a description of other CR data, like for instance the positron [@DelahayeEtAl2009; @DelahayeEtAl2010; @BoudaudEtAl2017a] and antiproton fluxes [@DonatoEtAl2001; @GiesenEtAl2015; @ReinertEtAl2018; @BoudaudEtAl2019]. Eventually, these benchmarks will be instrumental in characterizing and hopefully reducing theoretical uncertainties entering searches for exotic phenomena ( [@DelahayeEtAl2008; @BoudaudEtAl2015a; @BoudaudEtAl2015; @BoudaudEtAl2017; @BoudaudEtAl2018; @BoudaudEtAl2018b; @ReinertEtAl2018]).

The [*min*]{}, [*med*]{}, and [*max*]{} benchmark values proposed in Ref. [@DonatoEtAl2004], all based on the same model, were defined to roughly bracket the theoretical uncertainties on dark matter-induced antiproton flux predictions assuming the best-fitting propagation parameters of Ref. [@MaurinEtAl2001]. However, these values have been challenged by a series of complementary constraints [@LavalleEtAl2014; @BoudaudEtAl2017a; @ReinertEtAl2018], and are anyway no longer consistent with the B/C data [@GenoliniEtAl2017]. 