a quark is a fundamental constituent of matter. It is what makes up protons and neutrons and there is nothing smaller than them. They cannot DO anything alone, merely make up other things
An anti-charm quark is the antiparticle of the charm quark. Charm quarks are a type of elementary particle that is a building block of matter, as described in the Standard Model of particle physics. Anti-charm quarks have an electric charge of +2/3 and are involved in various particle interactions.
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.
An anti-beauty quark, also known as a bottom antiquark, is the antiparticle counterpart of the beauty quark. It is a fundamental particle that has the opposite electric charge and other quantum numbers compared to the beauty quark. When a beauty quark and an anti-beauty quark pair up, they annihilate each other, releasing energy in the form of other particles.
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
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 CopyDesk was created in 2002.
Quark Pharmaceuticals was created in 1993.
Quark quark.
The last quark to be discovered was the top quark in 1995 at Fermilab in the United States. It is the heaviest of all quarks and completes the six-member family of quarks.
Quark Pharmaceuticals's population is 2,006.