>>10893885it's not true. the LHC experiments have published thousands of particle physics papers and all of them are predicted very accurately by the standard model -- typically what they use to calculate their predictions are simulation software like Pythia or Madgraph, and you can download those and try them out. they give you super accurate numbers for basically every process in particle physics (the only exceptions being very obscure parts of the SM like e.g. sphalerons)
