Not for these size datasets. Torrents are just too small and unreliable, except for the very most popular items. Slightly out of mainstream movies, which are small and likely more popular than data for an obscure science experiment, are nearly impossible to find seeders for.

So I'd guess no seeders want to host tens to thousands of terabyte torrents, and then thousands to millions of those for all the different datasets grabbed by all the science projects all over the world. The odds of being able to download one of these on demand is just about zero.