How most of the universe's visible mass is generated: Experiments explore emergence of hadron mass

Deep in the heart of the matter, some numbers don't add up. For example, while protons and neutrons are made of quarks, ...

Ultrafast electron diffraction captures atomic layers twisting in response to light

A pulse of light sets the tempo in the material. Atoms in a crystalline sheet just a few atoms thick begin to move—not ...

HD⁺ ions cooled to 18 mK yield most precise vibrational-rotational spectra to date

A research team from the Innovation Academy for Precision Measurement Science and Technology (APM) of the Chinese Academy of ...

Calorimetric experiment achieves tightest bound on electron neutrino mass

In a Physical Review Letters study, the HOLMES collaboration has achieved the most stringent upper bound on the effective electron neutrino mass ever obtained using a calorimetric approach, setting a ...