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05 Aug | Freya Blekman | Physics
The Bs  meson is a bound state of a strange quark and a beauty antiquark – as such it possesses both beauty and strangeness! For many years, searches for an extremely rare decay of the Bs meson, to a μ+μ-  pair, remained a holy grail of particle...
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17 Jul | Freya Blekman | Physics
For the first time, the CMS collaboration has carried out a direct search for a Higgs boson decaying into charm quarks, a vital step in understanding the Higgs particle and the Standard Model. The discovery of a Higgs boson by both the ATLAS and CMS...
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15 Jul | Freya Blekman | Physics
Not many people know that there is a boson-boson collider hiding in the proton-proton collisions of the Large Hadron Collider. The idea is that during rare occasions other particles such as the photon and gauge bosons W and Z are created by the...
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12 Jul | Freya Blekman | Physics
The CMS Collaboration has recently presented an updated search for new invisible particles. The technique capitalizes on the imbalance among the visible particles in a collision that such an object would induce. If dark matter is made of fundamental...
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12 Jul | Freya Blekman | Physics
New physics may show up at the LHC in the form of yet unobserved particles which travel inside the detector before decaying, far from the point in space where they were produced. If these particles decay to photons, at CMS we can use the short but...
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11 Jul | Freya Blekman | Physics
At the EPS-HEP conference this week the CMS collaboration presents new results of a powerful search that is motivated by a variety of new physics models that predict a signature of a bump in the production of the most frequently produced particles...
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07 Jul | Freya Blekman | Physics
The CMS collaboration has recently released new results on how the top quark and Higgs boson interact, and this required a much deeper understanding of the production of top quarks together with bottom quarks.  The two heaviest known elementary...
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22 May | Freya Blekman | Physics
The study of dark matter is one of the primary research topics at the CMS experiment. The standard model of particle physics describes the behavior of elementary particles with incredible accuracy but provides no explanation or possible particle...
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12 Apr | Freya Blekman | Physics
Physicists at the CMS experiment are now very close to observing the simultaneous production of four top quarks (really two top quarks and two antitop quarks, but particle physicists describe this process as tttt) at the Large Hadron Collider for...
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05 Apr | Freya Blekman | Physics
There is copious astrophysical and cosmological evidence for dark matter, but no indication of how it was produced, how it interacts with regular matter, or how it could fit into an inclusive model of particle physics. One possibility is that dark...