Science journalism aimed at the educated (or not so educated) layman in the general public is prone to sensationalism and claims of new discoveries that aren't supported by the body text, or at least, aren't supported by the source and the general scientific community. But there are exceptions.
One stand out is an article from Phys.org which is a source that often offends in this regard but doesn't this time. Its headline accurately states:
Theoretical physicists find Higgs boson does not seem to contain any harbingers of new physics
The headline conclusion, reached after twelve years of study since its discovery was announced on July 4, 2012, is familiar to readers of this blog, but deserves recognition for resisting sensationalism and restating the scientific consensus. See, e.g., noting decays to a Z boson and a photon and here (summarizing the data to date).
The article used as its touchstone has the following abstract and citation (and isn't itself, the headline suggests, a broad review article, and is instead one more mundane article confirming that the experimental study of the Higgs boson confirms the theoretical expectations for it):
We evaluate the top-bottom interference contribution to the fully inclusive Higgs production cross section at next-to-next-to-leading order in QCD. Although bottom-quark-mass effects are power suppressed, the accuracy of state-of-the-art theory predictions makes an exact determination of this effect indispensable. The total effect of the interference at 13 TeV is −1.99(1)+0.30−0.15 pb, while the pure š¯’Ŗ(š¯›¼4š¯‘ ) correction is 0.43 pb. With this result, we address one of the leading theory uncertainties of the cross section.
No comments:
Post a Comment