Tag: Hard Probes 2026
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CMS maps the directional patterns of high-momentum particles in light-ion collisions
As high-transverse momentum particles punch through the plasma formed from light ions, the CMS experiment sees a possible imprint from the initial shape of the collisions For the first time, CMS has observed both suppression of high transverse momentum (pT) particles and anisotropy in their azimuthal distributions in a small collision system, which together represent…
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Probing the charm-quark dead cone in the quark-gluon plasma
CMS investigates charm-quark jets in heavy-ion collisions and finds no evidence of additional radiation inside the dead cone When lead ions collide at the Large Hadron Collider, they create an extreme state of matter known as the quark-gluon plasma (QGP), a hot and dense medium similar to the one that filled the Universe shortly after…
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In the wake of partons
The CMS experiment reports the first observation of a “wake” created by a fast-moving parton in quark-gluon plasma.
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ϒ mesons in light-ion collisions
The CMS experiment presents the first measurement of ϒ mesons – bound states of a bottom quark-antiquark pair – in oxygen-oxygen and neon-neon collisions, and strongly indicates that their production is suppressed owing to quark-gluon plasma droplets formed in such light-ion collisions.
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CMS at Hard Probes 2026
The CMS Collaboration announces several new results for the Hard Probes 2026 conference.