Down Quarks
Characteristics
of down quarks
spin 1/8
charge zero
lepton number zero
baryon number zero
temperature -1,034 (℃)
internal energy zero (MeV)

A seed-aggregate composed from one down seed and one ordinary seed is called an ordinary down quark. It is represented symbolically using the letter d. Here is a mathematical statement of the definition along with an icon to illustrate the quark.

$\sf{ d \equiv \left\{ D, O \right\} }$ down-quark.png

You can usually click on quark icons to come back to a page like this for reference. The down anti-quark is defined as the union of one down seed with an odd seed.

$\sf{ \bar{d} \equiv \left\{ D, \bar{O} \right\} }$ down-anti-quark.png

These definitions can also be stated using seed icons as

down-seed.png + ordinary-seed.png down-quark.png
down-seed.png + odd-seed.png down-anti-quark.png
achromatic.jpgodd.jpg
Sensory interpretation: Ordinary down quarks represent black Anaxagorean sensations on the right-side, and down anti-quarks are objectified from black perceptions felt on the left.

Summary
Noun Definition
Down Quark $\sf{d} \equiv \{ \sf{D}, \sf{O} \}$ 3-42
Noun Definition
Down Anti-quark $\sf{\overline{d}} \equiv \{ \sf{D}, \sf{\overline{O}} \}$ 3-41

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