antiquark


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antiquark

[′an·tē¦kwärk]
(particle physics)
The hypothetical antiparticle of a quark, having electric charge, baryon number, and strangeness opposite in sign to that of the corresponding quark.
References in periodicals archive ?
Let us assume that there is a characteristic radius (residual radius) [r.sub.0] of the quark and antiquark system (which is the smallest distance between the two quarks where they cannot collide with each other).
The high energy at the time and the creation and destruction of a large number of quarks and antiquarks would also create a variety of flux tubes, some of which could be knots.
antiquark, or whether the extreme fleetingness of that which can not
Each quark has an anti-matter equivalent known as antiquark. Both protons and neutrons - contained within the nucleus of an atom - are made up of three quarks bound together.
A quark (antiquark) has a baryon number 1/3 (-1/3), while SM lepton has 0.
In meson for example (a simpler case) the quark and the antiquark must undergo rapid interchange of identity into each other (through exchange of force particles) to remain in a stable form.
The two tree diagrams in first line of Figure 1 represent the color-favored tree diagram for D [right arrow] P(V) transition and the W-exchange diagram with the pseudoscalar (vector) meson containing the antiquark from the weak vertex, respectively.
Each quark has an antimatter equivalent known as antiquark. Quarks usually come in packages of two or three.
In the SU(3) representations the quark and antiquark contributions cancel.
Like other mesons, DsJ(2632) is thought to contain one quark--a strange quark--and one antiquark--a charm antiquark.
quarks of different colors, or a quark of one color and an antiquark carrying the corresponding anticolor.