Category: Physics
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Correlation phenomena observed by CMS may shed light on exotic state of matter
Observing a phenomenon for the first time helps us fine-tune our understanding of the Universe.
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The X(3872) exotic charmonium: a charming puzzle
CMS measures production rates up to high transverse momenta A decade after its unexpected discovery, the properties of the X(3872) exotic resonance are still under intense scrutiny.
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What do we mean by “cross section” in particle physics?
Sometimes, everyday words are co-opted by scientists and used as technical terms.
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New CMS results at Moriond (QCD) 2013
New results on the Higgs boson, Standard Model physics, and searches for exotic physics
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New CMS results at Moriond (Electroweak) 2013
New results on the Higgs-like boson, Supersymmetry, and searches for exotic physics
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Colliding different particle species: the LHC’s proton-lead run
The new year brings a new type of collision at the LHC: the accelerator will smash protons and lead nuclei together, allowing CMS and the other LHC experiments to study the cold nuclear matter we expect these collisions to produce.
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CMS observes melting of Upsilon particles in heavy-ion collisions
In 2011, CMS presented early evidence that Upsilon (Υ) particles produced in lead-lead collisions “melt” as a consequence of interacting with the hot nuclear matter created in these heavy-ion interactions.
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CMS observes unexplained particle states
In the vast particle landscape, there are, to borrow a phrase, known knowns (the Standard Model, for example), unknown unknowns (exotic extensions of the Standard Model and beyond), and those ever-interesting known unknowns.
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Highlights of CMS results presented at HCP
Kyoto, Japan on 12–16 November 2012
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Precision measurements using top quarks at CMS
Amongst all known elementary particles, the top quark is peculiar: weighing as much as a Tungsten atom, it completes the so-called 3rd generation of quarks and is the only quark whose properties can be directly measured.