00:01
So in this problem, we're going to look at three different decays, and we're going to see which ones are possible and which ones are not.
00:06
So first decay we're to consider we have a neutral c particle beginning to a sigma plus and a pi minus.
00:14
So charges conserved.
00:16
The charge is neutral in the beginning, and then we have something with positive charge and negative charge.
00:21
The charge is nests allowed.
00:23
Vary number is also conserved.
00:24
It has very number plus 1, plus 1, and 0.
00:27
However, we look at momentum.
00:30
So this is the energy of the c of the size zero particle minus the sigma plus massive minus, find that this is negative.
00:42
So there is an energy slash mass deficit because this number is less than zero.
00:48
So momentum slash energy are not conserved to 40th grade is not possible.
00:54
We look at the next decay.
00:55
We have omega minus decay into sigma zero plus five minus plus new, zeus and neutrino...