Under a new scheme funded by the CMS Collaboration's share of the 2025 Breakthrough Prize in Fundamental Physics, early-career researchers have been selected as the inaugural recipients of the CMS Breakthrough Prize PhD Awards. The awards provide ded…

  The CMS experiment performs the first collider search for “inelastic dark matter” in the case where dark-matter particles travel a measurable distance before decaying into a pair of low-momentum electrons. Most of the matter in the universe is…

  One of the unique features of the weak interaction is its ability to transform one quark flavor into another. However, not all flavor transitions are equally likely. Some occur relatively often, while others are extremely rare because the Stan…