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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…

Cloud(y) climate studies at CERN

Continuous improvements to the CLOUD facility as well as to the instruments combined with the state of the art know-how available at CERN have enabled a steady increase in the measurement capabilities and resulted in numerous high impact…

ALPHA new results: pushing the limits in antimatter research

In a paper published this week in Nature, the ALPHA collaboration reports the most precise direct measurement of antimatter ever made, revealing the spectral structure of the antihydrogen atom in unprecedented accuracy. The result…

BabyMIND records first muon tracks

Assembled as part of project NP05 at the CERN Neutrino Platform, the Baby MIND muon spectrometer has been recording its first muon tracks from neutrino interactions at J-PARC since 10th March. Baby MIND is designed to determine the momentum and…

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