Nothing, an individual quark is a point particle and cannot come apart.
Now if your question was what holds quarks together inside particles like protons and neutrons, that would be the strong force, which at the range inside a proton or neutron is so strong that a quark can never escape unless enough energy is applied that a shower of quarks and antiquarks are created in the escape and before any independent quarks can be detected they have already all recombined into doublets and triplets that are already known particles.
Quark oscillation is significant in particle physics research because it helps scientists understand the behavior of quarks, which are fundamental particles that make up protons and neutrons. By studying quark oscillation, researchers can gain insights into the strong force that holds atomic nuclei together and the structure of matter at a fundamental level. This research contributes to our understanding of the universe's building blocks and how they interact.
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.
An antiquark is a subatomic particle that is the antiparticle of a quark. When a quark and an antiquark come together, they can combine to form mesons or baryons, which are composite particles such as protons and neutrons. Antiquarks have the same mass as quarks but opposite electric charge and other quantum numbers.
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.
Mesons are subatomic particles that are made up of a quark and an antiquark bound together. They are responsible for the strong nuclear force that holds protons and neutrons together in the atomic nucleus. Mesons have integer spin and decay rapidly into other particles.
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 quark
Quark CopyDesk was created in 1991.
Quark Pharmaceuticals was created in 1993.
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.
Wood glue holds boards together.