An antibaryon composed of two antiup quarks and one antidown quark would have a charge of (1) +1e (3) 0e (2) −1e (4) −3e
Question
and one antidown quark would have a charge of
(1) +1e (3) 0e
(2) −1e (4) −3e
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1. User Answers ariston
Answer:
(2) −1 e
Explanation:
A quark is the lightest elementary particles which form hadron such as proton and neutron. A quark has fractional charge.
Up, charm and top quarks have [tex]+\frac{2}{3} e[/tex] charge where as down, strange and bottom quarks have [tex] \frac{1}{3}e[/tex] charge.
The antiparticle of up quark is antiup quark and has charge [tex]\frac{2}{3}e[/tex] charge.
The antiparticle of down quark is antidown quark and has charge [tex]+\frac{1}{3}e[/tex] charge.
An antibaryon is composed of two antiup quark and one antidown quark.
Net charge of the antibaryon is:
[tex]2\times (\frac{2}{3} e)+1\times (+\frac{1}{3})e=1e[/tex]
Thus, antibaryon has 1e charge.