A measurement of the Higgs boson mass in the diphoton decay channel is performed using proton-proton collision data at a center-of-mass energy of 13 TeV. The data set recorded with the CMS detector between 2016 and 2018 is used, corresponding to an integrated luminosity of 138 fb−1. A refined detector calibration and new analysis techniques are employed to improve the precision of the results compared to earlier measurements. The Higgs boson mass is measured to be mH = 125.13 ± 0.15 GeV = 125.13 ± 0.10 (stat) ± 0.12 (syst) GeV.
In addition, a combination with the mass measurement at center-of-mass energies of 7 and 8 TeV in the diphoton final state is performed resulting in mH = 125.06 ± 0.14 GeV = 125.06 ± 0.09 (stat) ± 0.11 (syst) GeV.
This result compares to a Particle Data Group global average of 125.13 ± 0.11 GeV (S = 1.5).
5 comments:
"Nothing to do with SUSY."
with out SUSY string theory is likely to be incorrect
what is your thoughts on spinfoam since it's 4d and does not require SUSY
As a vacuum boson, it is the source of ALL fermions = a function of sum of all fermions masses.
Top dominates: 3_M_t^2/Ω_t gives ∼90% of the sum. Vacuum boson mass is essentially set by top quark in AP (0).
b, c, τ add ∼10%: They provide the 4096-order fine tuning that shifts Mvb from ∼119 GeV to 125.46 GeV.
s, μ, e, u, d, ν ignored: Their combined Σ n_c_m^2 < 0.03 GeV², < 0.0002% contribution. Below experimental error.
Approximation: Mvb ≈ √{0.235 * [89.9% from top + 2.3% from bottom + 1.0% from charm + 6.7% from tau]}
which gives 125.46 GeV.
diphoton decay channel = too light.
Get from other channels, especially the b-channel.
Efforts to explain gravity by quantizing space-time like spinfoams and loop quantum gravity are promising but not really all that well developed, not really even well enough developed to be entirely sure that they replicate GR in the relevant domain of applicability.
@andrew but if you don't believe in SUSY and string theory then isn't spinfoams more promising
It is more promising than being almost completely ruled out by the data we have as in the case of SUSY and string theory. But it just isn't very well developed either, so the jury is out for now and there isn't much to say.
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