Tag: Physics briefings
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Examining the fringes of gluon densities in highly energetic nuclei
The CMS Collaboration reports the first measurement of coherent ϕ meson photoproduction, establishing a powerful new tool to explore the dense nuclear matter in the transition regime from perturbative to nonperturbative QCD.
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Teaching CMS to trace particles
An interactive version of the above event display can be found at this page.
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Are there quantum black holes that evaporate instantly?
The CMS experiment utilises cutting-edge machine learning techniques to search for microscopic, quantum black holes and other exotic objects that evaporate in an instant.
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CMS gets acquainted with a family of all-charm tetraquarks
Upon close inspection, the tetraquark family members are consistent with tightly bound diquark pairs The CMS Collaboration has identified three extremely rare same-flavor teraquark states and determined, based on their spin-parity configuration, that they are consistent with a diquark-antidiquark model.
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CMS observes rare top quark interaction with a W and a Z boson
Using data collected from 2016 to 2023 and cutting-edge machine learning, CMS observes for the first time the creation of a top quark together with a W and a Z boson – a process so rare it occurs only once in a trillion proton-proton collisions!
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Using physics-based machine learning to hunt dark matter
In the first search of its kind at a particle collider, the CMS experiment looks for partially visible sprays of particles (jets), containing leptons and dark matter using physics-informed machine learning.
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Clash of the titans: top quark meets lead ions
Five years after the first evidence that heavy metal hits the top quark, CMS now observes the clash of two titans with higher precision at unprecedented energy.
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Double the Higgs, double the mystery! The hunt for a new, heavy particle decaying to a pair of Higgs bosons
CMS scientists are on the hunt for a new, heavy particle that decays into a pair of Higgs bosons.
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How CMS records all 40 million events per second
The CMS experiment is utilising a novel technique called L1 Scouting, which allows it to record data from all collisions, without any selection, but in a reduced format.
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Collective motion in tiny systems: oxygen and neon collisions as a window into nuclear structure
CMS observes collective motion of particles in light-ion collisions, providing robust evidence of how initial nuclear geometry maps to final-state flow.