P2 X The image to the left is a Feynman diagram with time increasing upward. P1 (a) If p1 is an electron and X is a W+ what must p2 be? Why? (b) If p1 is a μ+ and p2 is a different flavor of lepton, what must p2 be? Why? (c) In the last question, what must X be? Why? (d) If p1 and p2 are both electron neutrinos, what must X be? Why? (e) If p1 and p2 are both the same flavor of charged lepton, what might X be? (There are two possibilities.) Why?
P2 X The image to the left is a Feynman diagram with time increasing upward. P1 (a) If p1 is an electron and X is a W+ what must p2 be? Why? (b) If p1 is a μ+ and p2 is a different flavor of lepton, what must p2 be? Why? (c) In the last question, what must X be? Why? (d) If p1 and p2 are both electron neutrinos, what must X be? Why? (e) If p1 and p2 are both the same flavor of charged lepton, what might X be? (There are two possibilities.) Why?
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Transcribed Image Text:P2
X
The image to the left is a Feynman diagram with time increasing upward.
P1
(a) If p1 is an electron and X is a W+ what must p2 be? Why?
(b) If p1 is a μ+ and p2 is a different flavor of lepton, what must p2 be? Why?
(c) In the last question, what must X be? Why?
(d) If p1 and p2 are both electron neutrinos, what must X be? Why?
(e) If p1 and p2 are both the same flavor of charged lepton, what might X be? (There are two
possibilities.) Why?
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