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(a) Verify from its quark composition that the $\Delta^{+}$ particle could be an excited state of the proton. (b) There is a spread of about 100 MeV in the decay energy of the $\Delta^{+},$ interpreted as uncertainty due to its short lifetime. What is its approximate lifetime? (c) Does its decay proceed via the strong or weak force?

$3.3 \times 10^{-24} \mathrm{s}$

Physics 103

Chapter 33

Particle Physics

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Lectures

02:51

In physics, wave optics is…

10:02

Interference is a phenomen…

02:04

One decay mode for the eta…

01:53

The principal decay mode o…

09:55

(a) Show that the proton-d…

05:25

(a) Beta decay is nuclear …

10:05

02:00

Leptons, Hadrons, and Stra…

01:45

II) A radioactive element …

02:08

(a) The lifetime of a high…

01:11

Typical measurements of th…

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(a) Calculate the energy r…

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(I) A radioactive element …

01:24

The measured energy width …

The decay mode of the nega…

01:06

(a) Show that the conjectu…

02:43

(II) What is the uncertain…

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If you observe the decay $…

00:37

The decay energy of a shor…

01:54

00:58

(a) What particle has the …

his problem. We want to verify the data. Plus is exacted stay excited state off problem. So first we see the daughter Plus has the same core constituents off the pro TEM. So it is you, you d and they have the same structure. So we or the proton is excited State or the Delta places the Psychic state. We know that Delta Place is society because the proton is stable and we have a decay that Delta Plus goes to pro trump a scammer. So this shows that the proton unstable and that the place is a sighted state off the parental for part B. Want to know a there knowing that there is a spread about 100 MTV in the decay energy off the delta. Plus, we want to know what is the approximate lifetime. So we have for B again, don't tell you Delta T is h buddy buddy before by So we have Delta t built the place his age divided by four by lt And that's a place. And then this for they'll tell you off 100 movie. So we have This is 4.15 I'm standing in minus 50 divided by four by times 100. I went to the six and this gives a time off. 3.296 Thanks 10 to the minus Study for a seconds. Now, for part C wantto know if this decay is produced by the strong or weak force, and we can tell that this is a strong interaction mediated forth because the time here it is really small. So we have this strong interactions. That time period is normally is smaller than 10 to the minus. Training two seconds, and the weak force Norm Elise, is it's well, more times. So this for this region. This is a strong interacting process, and also there is no forever changing or anything. So there's no role being played by the wake interaction here. So there's this so

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