Timeline for Free electron can't absorb a photon
Current License: CC BY-SA 3.0
12 events
| when toggle format | what | by | license | comment | |
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| Dec 23, 2015 at 10:23 | comment | added | Digiproc | See Rob Jeffries answer. I think its right. | |
| Dec 23, 2015 at 10:22 | comment | added | Danu | This answer is not complete enough to be useful, in my opinion. | |
| Dec 23, 2015 at 10:21 | comment | added | Mikael Kuisma | 'inside an electron' is also ill defined :) If photon is absorbed, it just ceases to exists. It is a Boson, and the number of Bosons need not to be conserved (unlike charge, baryon number etc). | |
| Dec 23, 2015 at 10:19 | comment | added | Mikael Kuisma | Partially absorbed is a bit ill defined. Maybe it would help, if you would search for some conservation laws around the lecture notes where this is mentioned (a conservation law, which might be violated, and thus forbid such a thing). | |
| Dec 23, 2015 at 10:18 | review | Low quality answers | |||
| Dec 23, 2015 at 12:44 | |||||
| Dec 23, 2015 at 10:18 | comment | added | Digiproc | Sorry, didn't know you meant completely. I think its a good question and I upvoted it. | |
| Dec 23, 2015 at 10:15 | comment | added | user65035 | But why can't it just absorb it completely, if there is a space for the electron inside of it to absorb the photon in the first place,why doesn't it just stay inside the electron, I might have something wrong in here.. | |
| Dec 23, 2015 at 10:14 | comment | added | Digiproc | Didn't know if the OP was asking if it can be absorbed completely. In theory (depending on the observers ref frame) the product photon can have negligible momentum, such that almost all is absorbed. | |
| Dec 23, 2015 at 10:10 | comment | added | user65035 | Mmm maybe he means that it can't be completely absorbed but partially such that the amount absorbed turns as a kinetic energy for the electron, right? | |
| Dec 23, 2015 at 10:10 | comment | added | Mikael Kuisma | ...but a photon is also absorbed? Maybe the point of the 'lecturers notes' is related to conservation of some quantity (angular momentum?), which can be broken by virtual particles. In any case, "Free electron can't absorb a photon" is a bad way to represent a thing like that. | |
| Dec 23, 2015 at 10:06 | comment | added | CuriousOne | In Compton scattering a photon with a different momentum is emitted. | |
| Dec 23, 2015 at 10:00 | history | answered | Digiproc | CC BY-SA 3.0 |