Quark Index

For detailed calculations, it is often convenient to use a number to represent different quark classes. So any thermodynamic or chemical seed Z

 $\sf{Z} \in \large{\{}$ $\sf{U, D, E, G, M, A, T, B, S, C, }$ Ⓐ, Ⓑ, Ⓒ, Ⓝ, Ⓓ, Ⓛ $\large{\}}$

that is used to define an ordinary quark

$\sf{z} = \{ \, \sf{Z}, \sf{O} \, \}$

and its associated anti-quark

$\bar{\sf{z}} = \{ \, \sf{Z}, \bar{\sf{O}} \, \}$

can occasionally be refered to using a number represented by the Greek letter ζ as shown in the table below. When used like this, zeta is called the quark index. This number also identifies the seed Z. The two particles $\sf{z}$ and $\bar{\sf{z}}$ are sometimes collectively called ζ-type or Z-type quarks. These notations are helpful when using summation notation in formulae.
 Twenty Dragon Tampan (detail) Paminggir people. Lampung region of Sumatra 19th century, 65 x 81 cm. From the library of Darwin Sjamsudin, Jakarta. Photograph by D Dunlop.
 Index Seed Quarks ζ Z z z 1 U u u 2 D d d 3 E e e 4 G g g 5 M m m 6 A a a 7 T t t 8 B b b 9 S s s 10 C c c 11 Ⓐ a a 12 Ⓑ b b 13 Ⓒ c c 14 Ⓝ n n 15 Ⓓ dd 16 Ⓛ l l

 Noun Definition Quark Index $\zeta \ \ \sf{\text{is a number representing quark class. }}$ 3-56
page revision: 165, last edited: 19 Feb 2018 18:16