Tag: TOP
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CMS at TOP 2026
The CMS Collaboration is presenting six new results at the 19th International Workshop on Top Quark Physics (TOP2026), held from October 5 to 9, 2026, in the Antalya Region of Türkiye.
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Testing the heaviest quark’s interaction with light
The CMS Collaboration has completed the most precise measurement to date of top-quark production in association with a photon Using the full Run 2 dataset of the LHC and advanced machine learning techniques, the CMS Collaboration has delivered the most precise measurement to date of top quark production in association with a photon.
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CMS observes another indication of a momentary union of the heaviest quarks, now in the lepton + jets final state
The CMS experiment provides the first confirmation of the excess observed in top quark-antiquark production that is consistent with the short-lived bound state – toponium – decaying to a lepton + jets final state.
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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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Top quarks take the t-channel express at 5.02 TeV
For the first time, the CMS experiment measures the production of single top quarks in a mode called the “t-channel” at 5.02 TeV, reporting results aligned with the standard model expectations.
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Broken mirrors: Do top quarks and Z bosons defy charge-inversion and reflection symmetry?
For the first time, the CMS experiment has employed physics-informed machine learning to observe whether the laws of physics still hold true when top quarks and Z bosons are replaced with their antiparticles and space is reflected.
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It takes two: CMS observes signs of attraction between top quark pairs
An excess in data hints at the existence of a top quark-antiquark quasi-bound state, called “toponium”.
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The flavour of new physics
The CMS Collaboration investigates whether physics plays favorites with quarks.
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Mind the gap! Top quark pairs with W bosons continue to defy the latest predictions
In a recent measurement, the CMS experiment confirms a slight but persistent disagreement between the simulated and the observed rates of events in which a top quark pair is produced accompanied by a W boson.
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Shiny top quarks: what happens when top quarks emit light?
The CMS experiment has conducted a comprehensive study of the rates of production of top quark pairs created along with a photon, both inclusively and as a function of several kinematic variables.