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2022-10-17
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Physics A Level
Chapter 15: Atomic structure 15.12 Another look at β decay
Physics A Level
Chapter 15: Atomic structure 15.12 Another look at β decay
2022-10-17
253
Crash
report
This is interesting as a hadron decays into another hadron emitting a lepton and an antilepton.
So, what happens in $\beta $ decay?
The neutron is made up of an up quark and two down quarks (udd), the proton is made up of two up quarks and a down quark (uud)
The equation representing this at a quark level is:
$d \to u + \begin{array}{*{20}{c}}
0\\
{ - 1}
\end{array}e + \overline v $
Question
18) a: Draw a diagram similar to Figure 15.17 to show ${\beta ^ + }$ decay.
b: Write an equation to describe the changes in ${\beta ^ + }$ decay.