粒子 人 被定義為有序集
其中 n a m e {\displaystyle name} 是 name, q [ e ] {\displaystyle q[e]} 電荷, l [ − ] {\displaystyle l[-]} 輕子數, l e [ − ] {\displaystyle l_{e}[-]} 電子輕子數, l μ [ − ] {\displaystyle l_{\mu }[-]} μ輕子數, l τ {\displaystyle l_{\tau }} τ輕子數, b [ − ] {\displaystyle b[-]} 重子數, k s [ − ] {\displaystyle k_{s}[-]} 奇異性, k c [ − ] {\displaystyle k_{c}[-]} 粲數, k b [ − ] {\displaystyle k_{b}[-]} 底數, k t [ − ] {\displaystyle k_{t}[-]} 頂數, j [ ℏ ] {\displaystyle j[\hbar ]} 自旋, i [ − ] {\displaystyle i[-]} 同位旋, i z [ − ] {\displaystyle i_{z}[-]} 同位旋的z分量, μ {\displaystyle \mu } 磁矩, p {\displaystyle p} 內稟宇稱, m [ e V ] {\displaystyle m[eV]} 質量, τ [ s ] {\displaystyle \tau [s]} 平均壽命, E [ e V ] {\displaystyle E[eV]} 能量, x → {\displaystyle {\vec {x}}} 位置, k B {\displaystyle k_{B}} 顏色。
夸克 Ω K {\displaystyle \Omega _{K}} 是一組粒子
u = ( u p , 2 / 3 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ) {\displaystyle u=(up,2/3,0,0,0,0,0,0,0,0,0)} d = ( d o w n , − 1 / 3 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ) {\displaystyle d=(down,-1/3,0,0,0,0,0,0,0,0,0)} c = ( c u t e , 2 / 3 , 0 , 0 , 0 , 0 , 0 , 0 , 1 , 0 , 0 ) {\displaystyle c=(cute,2/3,0,0,0,0,0,0,1,0,0)} s = ( s t r a n g e , − 1 / 3 , 0 , 0 , 0 , 0 , 0 , − 1 , 0 , 0 , 0 ) {\displaystyle s=(strange,-1/3,0,0,0,0,0,-1,0,0,0)} t = ( t r u t h , 2 / 3 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 1 ) {\displaystyle t=(truth,2/3,0,0,0,0,0,0,0,0,1)}