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?

  • $\begingroup$ Seems like a dupe to me though... $\endgroup$
    – Zhe
    Mar 15 '17 at 17:39
  • 2
    $\begingroup$ @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 $\endgroup$
    – SubZero
    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.


Not the answer you're looking for? Browse other questions tagged or ask your own question.