RNTuple is the upcoming primary data storage solution at the Large Hadron Collider (LHC) experiments and other high-energy physics (HEP) experiments going forward. Aside from many technical upgrades from the TTree object, RNTuple also is the first time .root file committed to specification.1 In this paper we present the latest development in UnROOT.jl that enables both the reading and writing of complex table-like data structures in Julia with RN-Tuple. At the moment this is the most complete 3rd party libraries that can read and write RNTuple data outside of C++ ROOT.
Ling et al. (Wed,) studied this question.