A novel view of the flavor-singlet spectrum from multi-flavor QCD on the lattice—Data release

This release contains the raw data used to prepare the plots and tables included in A novel view of the flavor-singlet spectrum from multi-flavor QCD on the lattice, and all analysed data presented in that paper. Included are: Data that are the output of HPC workloads enabling this work: Correlation functions and vacuum expectation values of the energy density and topological charge operators for the ensembles analysed for the paper, in HDF5 format, in the file etaprime_correlators.h5, described in more detail below. Mesonic correlation functions for new ensembles generated for this work (namely $N_f=8$, $am_f=0.009$, and $N_f=4$, $\beta=3.8$, $am_f=0.01,0.02,0.03$), in the file correlators.zip. The README_correlators.md file in that archive documents the format of these data. Histories of the topological charge and energy density over the course of applying the gradient flow of the Symanzik gauge action, in the file symanzik_flows.zip. The README_flows.md file in that archive documents the format of these data. All metadata used for the fitting and subsequent analyis of these data: Metadata describing the ensembles to be analysed and the parameters with which to do so, in the file ensembles.yaml Metadata describing the fits performed for the eta-prime mass, in the file etaprime_ensembles.csv Metadata describing the new Monte Carlo streams for the new point at , , , in the file mc_streams_nf8_m0.009.csv Metadata describing the subset of configurations used in observable computations for the new point at , , , in the file measurement_trajectories_nf8_m0.009.csv The software workflow used to analyse the above data and metadata, and produce the plots and tables shown in the paper, in the file latkmi_etaprime_2025.zip. The file README.md in that archive details how to reproduce our analysis. All data generated by this workflow, and that are presented in plots and tables in the paper, in CSV format, in files described in more detail below. Results for the mass of the state as a function of smearing parameters, in the file etaprime_masses_by_smearing.csv Results of fits of the mass spectrum, presented in Tables II, III, IV, and V of the paper, in the file fit_results.csv Results for observables in the mass spectrum for each ensemble considered, in the file spectrum.csv Results for the continuum extrapolation of the anomalous dimension from the gradient flow scale, in the file t0_gamma.csv. For further detail on the contents of each file, please see the file README.md.