Weak hypercharge & isospin

Graphical representation of the weak hypercharge Y & isospin I3 quantum number (of U(1)_Y and SU(2)_L) of the Standard Model particles, as well as for different types of leptoquarks. Inspired by this image on Wikipedia.

All Standard Model fields:

All Standard Model bosons (mass eigenstates after spontaneous symmetry breaking), grouping SU(2)_L doublets and triplets:

Using the common labeling of the photon and gluon fields as vector fields:

All Standard Model bosons (before spontaneous symmetry breaking):

Fermions (quarks & leptons), grouping SU(2)_L doublets:

With explicit naming of the doublets:

Without axes:

Weak neutral current couplings of lepton and quark, split by axial-vector coupling (c_A) and vector coupling (c_V):

All types of leptoquarks (LQ) allowed by Standard Model symmetries (for an in-depth explanation of all LQ models and their quantum numbers, see for example I. Doršner et al.), shown as SU(2)_L singlets, doublets, or triplets:

Edit and compile if you like:

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% Author: Izaak Neutelings (June 2022)
% Inspiration:
%   https://en.wikipedia.org/wiki/File:Electroweak.svg
%   https://commons.wikimedia.org/wiki/File:Standard_Model.svg
%   http://www.scientificlib.com/en/Physics/LX/WeakHypercharge.html % anti-fermions wrong ?
%   https://en.wikipedia.org/wiki/Mathematical_formulation_of_the_Standard_Model#Field_content_in_detail
%   https://en.wikipedia.org/wiki/C-symmetry#Charge_conjugation_in_the_chiral_basis
\documentclass[border=3pt,tikz]{standalone}
\usepackage{tikz}
\usepackage{amsmath} % for \text
\usepackage[outline]{contour} % glow around text
\usetikzlibrary{arrows.meta} % to control arrow size
\tikzset{>={Latex[length=4,width=4]}} % for LaTeX arrow head
\usetikzlibrary{calc}
\usepackage{xcolor} % for colored text
\contourlength{1.1pt}
\colorlet{myblue}{blue!70!black}
\colorlet{mydarkblue}{blue!40!black}
\colorlet{mypurple}{blue!60!red!80!black}
\colorlet{myred}{red!70!black}
\colorlet{myred2}{red!75!blue!80!black!90}
\colorlet{mydarkred}{red!50!black}
\colorlet{mygreen}{green!60!black}
\colorlet{mygreen2}{green!68!blue!70!black!90}
\colorlet{mydarkgreen}{green!30!black}
\colorlet{myorange}{orange!88!black}
\colorlet{myorange2}{orange!75!black}
\colorlet{myyellow}{yellow!80!orange!90!black}
\def\tick#1#2{\draw[thick] (#1) ++ (#2:1pt) --++ (#2-180:2pt)}
\renewcommand\bar{\overline}
\renewcommand\tilde{\widetilde}
\newcommand{\YW}{Y_\mathrm{W}}
\newcommand{\ff}[2]{#1_\text{#2}} % fermion field
\newcommand{\aff}[2]{\overline{#1}_\text{#2}} % anti-fermion field
\tikzstyle{guide}=[ultra thin,black!15,line cap=round]
\tikzstyle{myball}=[line width=0.05,ball color=#1]
% COMMON MACROS
\def\myball(#1)[#2]{
  \fill[ball color=#2] (#1) circle(\r);
 
 
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