coSym.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.
Mainz University#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/
CMS Publications#CMSpaper: Measurement of angular correlations inside jets induced by gluon polarization in proton-proton collisions at √s = 13.6 TeV (arXiv:2603.03689) https://arxiv.org/abs/2603.03689 #StandardModel
Measurement of angular correlations inside jets induced by gluon polarization in proton-proton collisions at $\sqrt{s}$ = 13.6 TeV
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.
#CMSpaper soon on arXiv: Measurement of angular correlations inside jets induced by gluon polarization in proton-proton collisions at √s = 13.6 TeV (CERN-EP-2026-022) https://cds.cern.ch/record/2956174 #StandardModel
Measurement of angular correlations inside jets induced by gluon polarization in proton-proton collisions at $ \sqrt{s} = $ 13.6 TeV
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.
Peter SchuttevaarI 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
#CMSPAS: Triple-differential measurement of Z+jet production in proton-proton collisions at a center-of-mass energy of 13 TeV (CMS-PAS-SMP-24-010) https://cds.cern.ch/record/2955688 #StandardModel
C.This is way above my pay grade, and I've only read the article, not the actual technical work underneath it (because my maths is insufficient to know what it's talking about, so there's not a lot of point). But it sounds really interesting.
I've never heard of "observer patch holography" (note typo in slug text), but a theoretical framework which has just a single free variable but lets you derive general relativity and the standard model, correctly predicting a bunch of magic numbers that we input as free variables into the standard model, is interesting as hell.
Maybe someone smarter than me has already looked at this and debunked it. Sabine doesn't seem to have done a video on it (or I missed it). And "one guy with four information theory axioms solves all of physics' problems" is definitely on the Hollywood-script end of the plausibility scale, but who knows? Weirder things have happened.
@cenobyte - thought of you, of course.
#StandardModel #physics #GeneralRelativity #GR #ObserverPatchHolography #OPH #quantum
#CMSpaper: Measurement of event shape variables using charged particles inside jets in proton-proton collisions at √s = 13 TeV (arXiv:2602.17509) https://arxiv.org/abs/2602.17509 #StandardModel
Kanishka NaikThe Standard Model organizes quarks and leptons into three generations of increasing mass. First-generation particles are stable; higher generations decay rapidly and appear only in high-energy environments. The Higgs boson gives mass to quarks and charged leptons.
#CMSpaper soon on arXiv: Measurement of event shape variables using charged particles inside jets in proton-proton collisions at √s = 13 TeV (CERN-EP-2025-192) https://cds.cern.ch/record/2955071 #StandardModel
Measurement of event shape variables using charged particles inside jets in proton-proton collisions at $ \sqrt{s} = $ 13 TeV
Event shape variables, constructed from the four-momenta of the final-state objects in an event, are sensitive to the predictions of quantum chromodynamics in multijet production. A measurement of five event shape variables is presented, using proton-proton collision data collected at a centre-of-mass energy of 13 TeV with the CMS detector during 2016-2018, corresponding to an integrated luminosity of 138 fb$ ^{-1} $. The variables are evaluated using the charged particles inside jets. After correcting for detector effects, their distributions are compared with the results from the predictions from a number of models for multijet production. Overall, there is general agreement between several theoretical predictions and the data.