# Ee ->e+e+ scattering

by helpcometk
Tags: >e, scattering
 P: 75 1. The problem statement, all variables and given/known data I have come across the following scattering : e-e- ---->e+e+ Does anyone know the name of this scattering ? Do you know of any book describing simililar lepton scatterings? Thank you 2. Relevant equations 3. The attempt at a solution
 P: 1,020 can you see charge conservation here?
 P: 75 No charge conservation Do you think this might be a typo? I will completely honest with you , this is a question from a homework :(look the attachement) if there is a typo then should the process e-e+ --- > e-e+ be considered an exotic scattering? Attached Thumbnails
 P: 1,020 Ee ->e+e+ scattering oh no,from which book you have gotten that? e-e+ --- > e-e+,this specially is related to bhabha scattering.this does hold.By the way,what is exotic here?
P: 75
 Quote by andrien can you see charge conservation here?
From my minimal knowledge on Feynaman rules i know that a feynman diagram has to conserve charge along a vertex.

If it is the e-e+ --- > e-e+ process shouldn't the question also clarify if it is spinless or not andrien ?
 P: 1,020 what do you mean by spinless.electron and positron can have it's spin along a certain chosen z axis in the same direction which is in fact a requirement of bhabha scattering!
 P: 75 well, i have just entered the field of particle physics ,and i don't know many things. Thanks for the replies
 P: 1,020 what was the name of book
 P: 75 The image i uploaded as i said , was taken from a homework assighnement.I don't know where he found it ,maybe a book came from an alternative universe through a wormhole,where the charge conservation law doesn't hold ,and so my teacher thought it was from our own universe.
P: 1,020
 Quote by helpcometk The image i uploaded as i said , was taken from a homework assighnement.I don't know where he found it ,maybe a book came from an alternative universe through a wormhole,where the charge conservation law doesn't hold ,and so my teacher thought it was from our own universe.

 Related Discussions Introductory Physics Homework 0 Introductory Physics Homework 7 Electrical Engineering 4 Quantum Physics 5 Quantum Physics 2