Talk:Color charge

Untitled

Random stuff that was removed from the page. Kept it here so that it could be incorporated later as actual text. -Seth Mahoney 21:08, 9 Apr 2004 (UTC)

Analogy with electrical charge

electrical charge -> color charge (sometimes color number)
electromagnetic force -> color force
charged particules -> quarks & gluons
exchange of photon -> exchange of gluons (difference: gluons are also 'color' charged)

About the two uses of the term "charge"

Quantum chromodynamics describing the interactions of quarks and gluons is a gauge theory based on SU(3). Because SU(3) is an eight dimensional Lie group, there are eight Gell-Mann matrices and, consequently, eight "charges" (meaning 1) given by:

$\int \!\!d^{3}x~~{\bar {q}}\cdot {\tfrac {1}{2}}\lambda ^{i}~\gamma ^{0}q$

On the other hand, the most simple no trivial representation of the Lie algebra of SU(3) is three dimensinal, so these matrices are acting in a space of "three colors" (meaning 2). Clearly, the "eight color charges" (meaning 1) and the "three color charges" (meaning 2), are leading to some misunderstanding, because we are using the term "charge" for two different concepts, --Davius (talk) 08:23, 23 July 2022 (UTC)

"Color symmetry" listed at Redirects for discussion

The redirect Color symmetry has been listed at redirects for discussion to determine whether its use and function meets the redirect guidelines. Readers of this page are welcome to comment on this redirect at Wikipedia:Redirects for discussion/Log/2024 January 5 § Color symmetry until a consensus is reached. GreatStellatedDodecahedron (talk) 12:34, 5 January 2024 (UTC)

Introduction

Currently the introduction of this article only gives a very vague characterization of what color charge is and spends an entire paragraph in explaining what it's NOT, i. e. corresponding to actual colors. Could someone expand the first paragraph a bit and add a precise definitiion of color charge in one sentence? --Jazzman (talk) 10:49, 17 January 2024 (UTC)

Yes, when I have time for it I will fix the introduction. Please review it when that actually happens and let me know if it still needs changing. OverzealousAutocorrect (talk) 14:41, 28 February 2024 (UTC)

"Colour symmetry" listed at Redirects for discussion

The redirect Colour symmetry has been listed at redirects for discussion to determine whether its use and function meets the redirect guidelines. Readers of this page are welcome to comment on this redirect at Wikipedia:Redirects for discussion/Log/2024 January 21 § Colour symmetry until a consensus is reached. Steel1943 (talk) 19:28, 21 January 2024 (UTC)