"We have good reason to suspect that new physics beyond the standard model might be lurking just around the corner." When you purchase through links on our site, we may earn an affiliate commission.

While all atomic nuclei except hydrogen are composed of protons and neutrons, physicists have been searching for a particle consisting of two, three or four neutrons for over half a century.

The building blocks of matter that have been experimentally verified are the quarks and leptons described by the Standard Model. Since the discovery of the electron in 1897, physicists have identified ...

An international team of researchers has systematically measured the β-decay half-lives of 40 nuclei near calcium-54, ...

Never-before-seen particles called axions could be behind the mysterious X-rays. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. More than 400 ...

The particles that are in an atom: protons, neutrons and electrons The particles that are in protons and neutrons: quarks The four fundamental forces: gravity, electromagnetism, the strong force and ...

Measuring zero: scientists have lowered the previous upper limit of the neutron’s electric dipole moment by 40%. (Courtesy: IOP Publishing) For more than 60 years, physicists have been searching for a ...

ALICE collaboration identifies three-phase process that allows particles to form despite energetically unfavourable ...

A worldwide collaboration of scientists has announced the most precise measurement ever taken of a neutron's lifetime. How? By giving neutrons a nice long soak in an ultracold "neutron bathtub." Share ...