The most successful theory in the history of science has a problem. The Standard Model works too well to abandon and not well enough to trust completely.
#StandardModel of #ParticlePhysics verified to one trillionth accuracy: Experiments with hydrogen confirm fundamental #QuantumTheory up to the 13th decimal place and solve proton radius puzzle 👉 https://prisma.uni-mainz.de/en/2026/03/11/standard-model-of-particle-physics-tested-to-a-trillionth-of-a-percent-accuracy/
A study of angular correlations inside jets induced by gluon polarization is performed using proton-proton collisions at a center-of-mass energy of $\sqrt{s}$ = 13.6 TeV. The data correspond to an integrated luminosity of 34.7 fb$^{-1}$, collected in 2022 with the CMS detector at the LHC. The details of the parton shower are investigated using jets reconstructed with the anti-$k_\mathrm{T}$ algorithm and subsequently declustered with the Cambridge$-$Aachen algorithm. A novel analysis technique is developed to identify characteristic features of the jet substructure and to select intermediate gluon splittings into quark-antiquark pairs. An observable sensitive to gluon polarization in the parton shower is measured and compared with PYTHIA 8 and HERWIG 7 model predictions, with and without angular correlations induced by the gluon spin. The results are consistent with models that incorporate gluon polarization and strongly disfavor those that neglect them.
A study of angular correlations inside jets induced by gluon polarization is performed using proton-proton collisions at a center-of-mass energy of $ \sqrt{s}= $ 13.6 TeV. The data correspond to an integrated luminosity of 34.7 fb$ ^{-1} $, collected in 2022 with the CMS detector at the LHC. The details of the parton shower are investigated using jets reconstructed with the anti-$ k_{\mathrm{T}} $ algorithm and subsequently declustered with the Cambridge-Aachen algorithm. A novel analysis technique is developed to identify characteristic features of the jet substructure and to select intermediate gluon splittings into quark-antiquark pairs. An observable sensitive to gluon polarization in the parton shower is measured and compared with PYTHIA 8 and HERWIG 7 model predictions, with and without angular correlations induced by the gluon spin. The results are consistent with models that incorporate gluon polarization and strongly disfavor those that neglect them.
I thought that perhaps ik could introduce myself with the first video i made on my book "Monkeys do not die as lizards".
https://www.schuttevaar.nl/natuurkunde/blog/2132109_bpo-theory-an-introduction
Message: physics can be made much simpler by introducing only a few basic new concepts.
I would be happy to hear your opinions.
#physics #quantum #standardmodel
Reel Tubes
CMS Publications
coSym.
Mainz University
Peter Schuttevaar