Chirality is a fundamental property of a particle; particles which differ in terms of chirality can be viewed as an entirely different type of particle. It refers to how a particle's quantum mechanical …

Jan 11, 2012 · What exactly is $p_T$? Is it simply momentum, but with the component parallel to the main beam projected off? Also, why is $p_T$, as opposed to $p$, an important …

In that configuration, the only way to reduce the field energy is to bring the charges closer together, so there is a force in that direction, i.e., of each particle directly toward the other. The …

Is there anything smaller than a quark? So far we have just discussed protons, neutrons, and electrons in class, so I am just curious.

Mar 26, 2021 · For single-particle quantities the usual convention is to use lower-case letters and symbols. It's probably fair to say that term symbols are most commonly used in atomic …

Dec 3, 2025 · Particle physics is the study of the fundamental forces of nature as they are embodied in the interactions of elementary and composite particles at high energies and short …

Sep 16, 2022 · See this answer which is somewhat technical (undergraduate-physics-major level). When you add quantum mechanics, you get particle-like behavior of the field, and each …

Aug 7, 2016 · According to quantum electrodynamics, the most accurately verified theory in physics, a photon is a single-particle excitation of the free quantum electromagnetic field.

8 Particle physics has a set of elementary particles , some of which have zero mass. In this table the general public has heard of the electron and maybe the photon. The mass of the electron …

From my understanding of the standard model, I understand that there are 19 or 20 free parameters that we need to put in by hand as, and I'm guessing here, there is as yet no …