The cast of Quark and the Princess - 1987 includes: Anne Marie Helger as Princess
The cast of Quark and the Mosquitos - 1987 includes: Michael Low William Savarese
The cast of Quark and the Highway Robber - 1987 includes: John Cleese as Narrator
The cast of Baby Quark - 1987 includes: John Cleese as Narrator Henrik Koefoed as Viking
The cast of Quark and the Vikings - 1987 includes: Henrik Koefoed as Narrator William Savarese David Tate
The cast of Dragonslayer Quark - 1987 includes: John Cleese Anne Marie Helger as She-dragon William Savarese David Tate
An antibottom quark (or b-bar quark) is the antiparticle of a bottom quark. It has the same mass as a bottom quark but opposite electric charge and other quantum numbers. When a bottom quark meets an antibottom quark, they can annihilate each other and produce energy.
Quark.
Neutral pions are composed of a quark-antiquark pair, specifically an up quark and an anti-up quark or a down quark and an anti-down quark. They are the lightest mesons and are unstable, decaying rapidly into two photons.
quark quark
Quark CopyDesk was created in 1991.
An anti-down quark is the antimatter counterpart of a down quark, one of the elementary particles that make up protons and neutrons in the atomic nucleus. It has opposite electric charge to a down quark and can combine with other quarks to form antimatter particles.
Quark Pharmaceuticals was created in 1993.