It's a twenty-year-old question: how much do the constituent quarks and gluons contribute to the spin of a nucleon? New results from the COMPASS experiment add to the picture. Naively, the proton ...

Nucleons, the particles that make up the nucleus of an atom, are fundamental to understanding the universe's building blocks.

We say that iron has a high binding energy per nucleon. Elements with lower and higher mass numbers per nucleon are less stable. The total mass of a nucleus is less than the total mass of the ...

The scattering of high-energy electrons from nuclear and nucleon targets provides a microscope for examining the structure of these tiny objects. The best evidence we have on what nuclei and nucleons ...

Protons and neutrons–known collectively as nucleons–are both the building blocks of matter, but one of these particles has ...

The new Central Neutron Detector at Thomas Jefferson National Accelerator Facility has successfully detected neutrons in ...

All oxygen atoms have 8 protons and all sodium atoms have 11 protons. The nucleon number (or mass number) of an atom is the total number of protons and neutrons it contains. The nucleon number of ...

Van Overmeire, B. Cosyn, W. Lava, P. and Ryckebusch, J. 2006. Relativistic eikonal description ofA(p,pN)reactions. Physical Review C, Vol. 73, Issue. 6, ...

Nuclear theorists uncover the mass distribution within the pion and the proton through groundbreaking first-principle ...