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I was studying about nuclear reactions and similar stuff, but stumbled upon this doubt

In the process of beta decay, where a neutron transforms into a proton, a positron and an antineutrino, where do the electron and antineutrino come from ( do they already exist within the neutron or like? )

I do not believe that this is a duplicate of In nuclear chemistry, how does a neutron split to form a proton and an electron?


marked as duplicate by Zhe, hBy2Py, jerepierre, airhuff, Klaus-Dieter Warzecha Mar 15 '17 at 19:16

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

  • $\begingroup$ Seems like a dupe to me though... $\endgroup$ – Zhe Mar 15 '17 at 17:39
  • 1
    $\begingroup$ @Zhe, what i wanted to know wasnt what happens during the decay( any referance book gives that info) what i needed was the origin of the two particles, as cited by DavePhD $\endgroup$ – Supernova Mar 15 '17 at 17:53
  • $\begingroup$ Though it looks like you got the answer you wanted, the question is probably more appropriate for the Physics SE. You are more likely to find a Physicist who knows this, since chemically we tend to take protons, neutrons, and electrons as being the smallest building blocks. $\endgroup$ – Tyberius Mar 15 '17 at 19:54

A down quark of the neutron emits a virtual W- boson which becomes the electron and antineutrino pair.


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