I just looked for the paper, but have not yet found it.
Typically, in this field, the science is well done, the reviewers are world-wide and thorough, and the error bars are quite well estimated and reported. Usually if something is “found”, it turns out to be “true”, though the masses and such are often later found to lie outside the errors.
At these laboratories, 230 events is VERY large compared to the number of observations that many discoveries have been first announced. I think that the first announcement of the “top” quark was based on at most 25 events(possibly as low as 8). Without seeing the paper, my inclination is to say that it is likely that this will be confirmed in the future, and that means there is a “larger” particle which briefly existed.
I’ll continue to search for more about this from time to time.