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Searching for new physics with hadrons and muons at SPS

CERN is not only home to the LHC but provides a diverse physics programme using the LHC injector complex including the PS and the SPS that deliver a range of high-energy beams to a number of experiments. In order to fully exploit the scientific…

FASER joins the exploration for new physics

On March 5th the CERN Research Board approved the ForwArd Search ExpeRiment (FASER), for installation at the LHC during Long Shutdown 2. FASER is an experiment designed to broaden the search for new physics at the LHC, by looking for light, weakly-…

HIE-ISOLDE: a unique window into the nucleus

With the recent completion of the second phase of HIE-ISOLDE, CERN’s ISOLDE facility has a machine capable of answering long-unanswered questions about the nature of the nucleus. The installation of 4 cryomodules in 2018 allowed for the acceleration…

First measurement of a long-lived meson-meson atom lifetime

In addition to the ordinary atoms, abnormal or exotic atoms serve as tools to study in detail the structure of atoms and their interactions. Different exotic atoms, consisting of other building blocks than electrons, protons and neutrons, have been…

FASER experiment to look for long-lived particles

At its last meeting CERN’s Research Board approved a new experiment that will look for light and weakly interacting long-lived particles at the LHC. The ForwArd Search ExpeRiment (FASER) will search for particles that might be produced parallel to…

Resolving a long-standing question at ISOLDE

Among the many pioneering results that have been published at ISOLDE was the discovery of odd-even staggering in the mean-square charge radius in neutron deficient Hg isotopes in the 1970s, as part of the RADOP experiment which measured the isotopic…

The MoEDAL Experiment at the Discovery Frontier

MoEDAL, the LHC’s newest experiment [1], that started official data taking in 2015, is different to other collider detectors. It is currently comprised of passive tracking, using plastic Nuclear Track Detectors (NTDs) and trapping sub-detectors that…

ALPHA-g sees its first antiparticles: does antimatter fall up or down?

The ALPHA collaboration working on antihydrogen at the Antiproton Decelerator (AD) in building 193 has successfully expanded their setup with new devices. The previous setup consisted of a positron accumulation device, accumulating positrons from a…

OSQAR experiment sheds light on a hidden sector of CERN’s scientific heritage

Particle physics is not only confined to the high energy frontier. There are unexplored territories at ultra-low energies, of sub-eV to eV, which are also very promising, such as for example in dark matter (DM) searches. The emblematic particle of…

Experimental searches for solar and dark matter axions

Detection of solar axions If axions exist, they would be produced in large quantities in the solar interior. Photons from the solar plasma would convert into axions in the Coulomb fields of charged particles via the Primakoff axion-photon conversion…

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