In the world of nuclear physics, protons often take the spotlight. But now, for the first time, the neutron has stepped into ...

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 ...

and how they add up to produce the nucleon’s spin, remains unclear. Past experiments showed that quark spins only account for about 20% to 30% of the total spin, sparking what’s known as the ...