Which of these properties need NOT be conserved in a weak interaction? Quark fla
ID: 1479167 • Letter: W
Question
Which of these properties need NOT be conserved in a weak interaction?
Quark flavor.
Color.
Angular momentum.
Electric charge.
What happens to low A nuclei that have too many protons?
Extra protons +-decay and turn into neutrons.
Extra protrons -decay and leave the nucleus.
Extra protrons capture inner electrons and into neutons.
Extra protons p-decay and leave the nucleus.
Two of the other answers are possible.
When quarks associate into composite particles, what is the color requirement?
The colors must always add to some neutral form.
There must be an anti-color for every color.
Anti-colors and colors cannot be mixed.
R, G, and B must always be present.
a.Quark flavor.
b.Color.
c.Angular momentum.
d.Electric charge.
Explanation / Answer
1) correct option is (d)
the weak interaction is caused by the emission or absorption of W and Z bosons. All known fermions interact through the weak interaction. Fermions are particles that have half-integer spin (one of the fundamental properties of particles). A fermion can be an elementary particle, such as the electron, or it can be a composite particle, such as the proton.
2) Correct option is (A)
Positron + emission and electron capture is when the isotope gains more neutrons. Positron emission and electron capture are below the band of stability because the ratio of the isotope has more protons than neutrons, think of it as there are too few protons for the amount of neutrons and that is why it is below the band of stability
3) Correct option is (b)
There are three types of color charge, arbitrarily labeled blue, green, and red. Each of them is complemented by an anticolor – antiblue, antigreen, and antired. Every quark carries a color, while every antiquark carries an anticolor.
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