Looking for new physics at the multiboson frontier
The CMS experiment presents a novel search for new physics by studying collisions that produce three W or Z bosons.
CMS Awards 2025
The CMS Collaboration congratulates individuals who have made significant contributions across the experiment by offering a CMS Award.
Hunting heavy particles through high-mass pairs of electrons or muons
CMS observes rare collisions that produce pairs of electrons or muons with the highest combined invariant mass ever recorded, extending the search for undiscovered heavy particles.
Estranged siblings? Observed meson decays are compatible with one bottomonium state, but without any hint of its partner
The CMS experiment reports the observation of a peaking structure in the Υ(1S)ϕ(1020) channel in proton-proton collisions at 13 TeV.
CMS AT LHCP 2026
The CMS Collaboration announces several new results for LHCP 2026.
Among the highlights are four new results including 2025 data, and two comprehensive performance papers.
Light mesons with a heavy impact
The CMS experiment reports the first observation of the rare decay of an eta meson to two muons and two electrons.
Pushing the limits: rare four-muon decays of B mesons
CMS sets the world’s most stringent limits on B⁰ and B⁰ₛ decays into four muons.
In search of new particles like the Higgs boson
Could there be more particles like the Higgs boson? For the first time, the CMS experiment has searched for the decay of the Higgs boson into two more Higgs-boson-like particles with unequal masses.
Out of the loop: CMS advances in the search for a rare Higgs boson decay
CMS pushes the sensitivity frontier towards a measurement of the rare Higgs boson decay into a Z boson and a photon