Timeline for Electron and positron pair production and annihilation

14 events

when toggle format	what		by	license	comment
Jul 2, 2019 at 4:33	comment	added	anna v		for feynman diagram see en.wikipedia.org/wiki/Pair_production#Cross_section
Jun 30, 2019 at 13:28	comment	added	Poutnik		Note that number of photons after annihilation is even, mostly 2, if mutual electron + positron spins are antiparallel, or odd, mostly 3, if parallel. See also positronium
Jun 30, 2019 at 13:14	vote	accept	Orion 73
Jun 30, 2019 at 13:14	vote	accept	Orion 73
Jun 30, 2019 at 13:14
Jun 30, 2019 at 13:14	vote	accept	Orion 73
Jun 30, 2019 at 13:14
S Jun 30, 2019 at 12:51	history	edited	M. Enns	CC BY-SA 4.0	added relevant tags
S Jun 30, 2019 at 12:51	history	suggested	Avantgarde	CC BY-SA 4.0	added relevant tags
Jun 30, 2019 at 12:21	answer	added	Michael Walsby		timeline score: 0
Jun 30, 2019 at 12:20	review	Suggested edits
S Jun 30, 2019 at 12:51
Jun 30, 2019 at 12:20	history	edited	Orion 73	CC BY-SA 4.0	added 33 characters in body
Jun 30, 2019 at 12:19	answer	added	Avantgarde		timeline score: 1
Jun 30, 2019 at 12:19	comment	added	Orion 73		Yes it does hit a nucleus. Thank you for the correction
Jun 30, 2019 at 12:18	comment	added	user234994		Where did you read that An electron and a positron arises from an energetic gamma photon? You might need to keep reading to the part where it says that the photon has to hit something before the pair is created otherwise momentum would not be conserved.
Jun 30, 2019 at 12:01	history	asked	Orion 73	CC BY-SA 4.0