sdown squark

s- prefix on both words of down quark.

sdown squark (plural sdown squarks)

1. (physics) A squark which is the hypothetical supersymmetric partner of a down quark.
   Symbol: ${\displaystyle {\tilde {d}}}$

• (squarks) squark; sup squark, sdown squark, scharm squark, sstrange squark, stop squark, sbottom squark ^{(Category: en:Squarks)}