Particles and interactions Research update Portable source could produce high-energy muon beams Research could lead to ultracompact muon sources for applications such as tomography Read article: Portable source could produce high-energy muon beams
Ultracold matter Research update Radioactive BEC could form a ‘superradiant neutrino laser’ Physicists plan to test idea in the lab Read article: Radioactive BEC could form a ‘superradiant neutrino laser’
Accelerators and detectors Research update High-quality muon beam holds promise for future collider Record-breaking 100 keV beam could enable next-generation experiments Read article: High-quality muon beam holds promise for future collider
Astroparticle physics Research update Sterile neutrinos are a no-show (again) Hypothetical fourth neutrino flavour is absent from new data from Fermilab's NOvA experiment Read article: Sterile neutrinos are a no-show (again)
Dark matter and energy Research update Atomic anomaly explained without recourse to hypothetical ‘dark force’ Effect observed in 2020 arises from changes in nuclear structure, not new physics Read article: Atomic anomaly explained without recourse to hypothetical ‘dark force’
Astroparticle physics Research update Ultrahigh-energy neutrino detection opens a new window on the universe Particle could have been created by a blazar or a cosmic collision Read article: Ultrahigh-energy neutrino detection opens a new window on the universe
Condensed matter Research update New class of quasiparticle appears in bilayer graphene "Fractional excitons" form in 2D carbon structure at high magnetic fields Read article: New class of quasiparticle appears in bilayer graphene
Mathematical physics Research update String theory may be inevitable as a unified theory of physics, calculations suggest Physicists explore particle scattering at tiny length scales Read article: String theory may be inevitable as a unified theory of physics, calculations suggest
Ultracold matter Research update Positronium gas is laser-cooled to one degree above absolute zero New cooling technique could help reveal physics beyond the Standard Model Read article: Positronium gas is laser-cooled to one degree above absolute zero
Particles and interactions Research update Improved antiproton trap could shed more light on antimatter-matter asymmetry Maxwell's demon cooling trap measures the magnetic moment of antiprotons with higher precision than ever before Read article: Improved antiproton trap could shed more light on antimatter-matter asymmetry
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