What is antiquark?

  • (noun): The antiparticle of a quark.

Some articles on antiquark, antiquarks:

List Of Baryons
... to the mesons which are the family of composite particles made of one quark and one antiquark ... showed the existence of pentaquarks – "exotic" baryons made of four quarks and one antiquark ... has a corresponding antiparticle (antibaryon) where quarks are replaced by their corresponding antiquarks ...
T Meson
... of a top quark and either an up (T0), down (T+), strange (T+ s) or charm antiquark (T0 c) ... The combination of a top quark and top antiquark is not a T meson, but rather toponium ... Each T meson has an antiparticle that is composed of a top antiquark and an up (T0), down (T−), strange (T− s) or charm quark (T0 c) respectively ...
Charmonia
... designates a flavorless meson whose constituents are a quark and its own antiquark ... only to charmonium and bottomonium, and not to any of the lighter quark–antiquark states ... states that are well defined in terms of a quark–antiquark pair of a given flavor ...
B Meson
... B mesons are mesons composed of a bottom antiquark and either an up (B+), down (B0), strange (B0 s) or charm quark (B+ c) ... The combination of a bottom antiquark and a top quark is not thought to be possible because of the top quark's short lifetime ... The combination of a bottom antiquark and a bottom quark is not a B meson, but rather bottomonium ...
Theta Meson
... a flavourless meson) formed by a top quark and top antiquark ... It is the equivalent of the phi (strange quark, strange antiquark), psi (charm quark, charm antiquark) and upsilon (bottom quark, bottom antiquark) mesons ...