The LHC lead-ion collision run starts

The LHC is back delivering collisions to the experiments after the successful leak repair in August. But instead of protons, it is now the turn of lead ion beams to collide, marking the first heavy-ion run in five years.

Researchers make progress in vector meson spin physics

A research team led by Prof. Wang Qun from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS) has made significant progress in the theoretical study of vector meson spin physics, ...

New driver for shapes of small quark-gluon plasma drops?

New measurements of how particles flow from collisions of different types of particles at the Relativistic Heavy Ion Collider (RHIC) have provided new insights into the origin of the shape of hot specks of matter generated ...

Calculation shows why heavy quarks get caught up in the flow

Using some of the world's most powerful supercomputers, a group of theorists has produced a major advance in the field of nuclear physics—a calculation of the "heavy quark diffusion coefficient." This number describes how ...

A simple solution for nuclear matter in two dimensions

Understanding the behavior of nuclear matter—including the quarks and gluons that make up the protons and neutrons of atomic nuclei—is extremely complicated. This is particularly true in our world, which is three dimensional. ...

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