Are there undiscovered particles that decay to a Higgs boson and a photon? Or a Z boson and a photon? (at high momentum it's difficult to see the difference between a Higgs boson and a Z boson) This #CMSPaper looks for a very massive resonance from such a particle. arxiv.org/abs/2511.14583

Are there undiscovered particles being produced at the LHC that we just missed? This #CMSPaper looks for such long-lived particles. Understanding the detector is very important there as known particles can make that signature when they traverse the material of our detector arxiv.org/abs/2511.08212

To accurately reconstruct all particles in LHC collision, CMS uses a technique called "Particle Flow". This #CMSPaper shows how the newest, #machinelearning based particle flow algorithm performs in recent data and how well it does at rejecting extra uninteresting collisions arxiv.org/abs/2601.17554

This #CMSPaper measures interactions between photons and Z bosons (quantum particles of electromagnetism and weak force). And measures if there are effects that explain why our universe contains more matter than antimatter. It's the most sensitive result for that signature arxiv.org/abs/2601.14102

This #CMSPaper measures the spin behaviour of top quark pairs. As that also can be calculated accurately in the standard model, it is important information to check precision measurements (and has links to things like quantum entanglement of top quarks) arxiv.org/abs/2512.17557

Are there #Darkmatter particles produced together with #Higgsbosons? This #CMSPaper looks for that signature in the LHC data collected in 2017 and 2018. It is a #NullResult arxiv.org/abs/2601.11330

Are there new heavy particles that decay to the Higgs, W or Z bosons we know from the standard model? This #CMSPaper compares and combines the very diverse techniques used on the data collected during 2015-2018, and gives a final say on what we can (and cannot) exclude https://arxiv.org/abs/2601.12583

The Higgs boson can decay to many different particles from the standard model. But... is the Higgs boson also decaying to undiscovered particles? This #CMSPaper looks for extra (light) bosons that would create the Higgs boson to four electron signature arxiv.org/abs/2511.19563

This #CMSPaper looks for production of photons in these boson collisions, meaning the LHC is a W boson collider, which is the first time this has ever been seen! It measures properties of the photons produced and compares them to the standard model predictions arxiv.org/abs/2512.00502

This #CMSPaper measures the simultaneous production of Z bosons and photons. That way their interactions can be measured and can be compared to predictions by the standard model arxiv.org/abs/2512.08582