- #1
DHO232
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Long time reader, first time posting here in physics forums.
I know that according to relativity photons have no proper time. I also know that a photon of sufficient energy can interact with a nucleus's nuclear force via the weak interaction resulting in pair production. I was looking at a Feynman diagram of the event and one axis is time. If the photon itself doesn't experience time then the time reference on the diagram must be from the perspective of the nucleus, right?
So does the photon interact with the weak field before being transformed into mass or does the interaction and creation happen instantaneously from the photon's perspective?
(I say photon's perspective even though a photon shouldn't have a perspective)
My guess is that it is the ladder, because if the photon interacted with the weak field at a separate time than the occurrence of electron and position creation then it would imply that the photon experienced time, had a proper time, and relativity had something wrong here.
I am not sure either way, I would greatly appreciate input. Thankyou.
I know that according to relativity photons have no proper time. I also know that a photon of sufficient energy can interact with a nucleus's nuclear force via the weak interaction resulting in pair production. I was looking at a Feynman diagram of the event and one axis is time. If the photon itself doesn't experience time then the time reference on the diagram must be from the perspective of the nucleus, right?
So does the photon interact with the weak field before being transformed into mass or does the interaction and creation happen instantaneously from the photon's perspective?
(I say photon's perspective even though a photon shouldn't have a perspective)
My guess is that it is the ladder, because if the photon interacted with the weak field at a separate time than the occurrence of electron and position creation then it would imply that the photon experienced time, had a proper time, and relativity had something wrong here.
I am not sure either way, I would greatly appreciate input. Thankyou.