The Ds particle is thought to be a charm quark paired with an anti-strange quark.
From the newscientist.com
A type of meson, made up of one charm and one anti-charm quark, is called a charmonium.
From the newscientist.com
It is made up of a charm quark and an up antiquark.
From the economist.com
Predicted the existence of the charm quark.
From the en.wikipedia.org
His brother Gerson, who died last year, played a key role in the discovery of the antiproton, the charm quark and the psi particle.
From the latimes.com
Since the D meson is the lightest meson containing a charm quark, it must change the charm quark into another quark to decay.
From the en.wikipedia.org
D0-meson's antiversion, D0-bar in the jargon, is composed of a charm antiquark and an up quark.
From the economist.com
Sheldon Lee Glashow and James Bjorken predicted the existence of a fourth flavor of quark, which they called charm.
From the en.wikipedia.org
Charm and strange are two different types of quark, and it is combinations of these and their antimatter counterparts that make up the charm-strange mesons.