Wiki, based on the 2018 Particle Data Group, gives the Higgs boson mass as $125.18 \pm 0.16$ GeV$/c^2$. OK.

However, 2017 ATLAS gives a combined value of $124.98 \pm 0.28$ GeV$/c^2$.

So what is the 2019 latest result, PDG 2018, 2017 ATLAS, or something else? Is it $124.988063...$ GeV?

  • $\begingroup$ Is it 124.988063...GeV? I’m pretty sure that the Higgs mass has not been measured to one part in a billion. $\endgroup$
    – G. Smith
    Oct 12, 2019 at 2:16
  • $\begingroup$ Thanks G. Smith! Good to know. Still, would be interested if any published newer results than 2017 ATLAS... e.g. home.cern/news/press-release/physics/… (but couldn't find an answer) $\endgroup$ Oct 12, 2019 at 2:32
  • 1
    $\begingroup$ There is also the CMS experiment measurement and a combined statistically value should be found in the particle data group tables, which would be the present accepted value. One should not rely on wikipedia. $\endgroup$
    – anna v
    Oct 12, 2019 at 4:59
  • $\begingroup$ @anna v Thank you...however, Wiki IS from the 2018 particle data group tables. I have amended my question to make that clear. My question, i.e. what are the very latest results, still stands... $\endgroup$ Oct 13, 2019 at 10:14

1 Answer 1


If you look at the link you gave, the combined higgs mass is given as 125.18 +/-16. Differs from just Atlas. They have combined all possible seen channels and experiments to get at this accuracy.

To see part of the complexity have a look at this talk at CERN. It is not simple.

  • $\begingroup$ Thanks, good read...still, what I was asking...is there any newer/reputable/multi-channel results than the 2018 PDG re Higgs Boson Mass. I thought there might be, given that 2019 CERN press release. If no, (which is what I think you are saying), fine, 2018 result is it, with update in 2020 I guess. Cheers. $\endgroup$ Oct 13, 2019 at 10:46
  • 1
    $\begingroup$ Yes, it is a long shutdown and they have not come out with new analysis for the Higgs. For some reason the pdg site in the US is not working. I found the mirror site in England works .durpdg.dur.ac.uk/lbl. $\endgroup$
    – anna v
    Oct 13, 2019 at 10:59

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.