In alpha decay (electron emission), the particles emitted along with electron is anti-neutrino. On the other hand, the particles emitted by beta decay (positron emission), is neutrino. Neutrino and anti-neutrino are anti-particle pair. There is particle anti-particle pair for each particle. Even electron has a antiparticle - positron. So, what is the anti-particle for proton?


closed as off-topic by ACuriousMind, garyp, Martin, Kyle Kanos, CR Drost Sep 28 '15 at 14:09

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  • $\begingroup$ You seem to have a few concepts wrong: Alpha decay is the emission of a Helium nucleus (two proton, two neutron). Beta decay emits an electron and an anti-electron neutrino. Positron decay emits a positron and an electron neutrino. Finally, the anti-particle of a proton is simply the anti-proton, where all the quarks of the proton are replaced by anti-quarks. $\endgroup$ – Martin J.H. Sep 28 '15 at 10:32
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    $\begingroup$ Look up what quarks a proton is made of then an anti proton is the corresponding three anti quarks. $\endgroup$ – Horus Sep 28 '15 at 10:32
  • $\begingroup$ But in alpha decay a helium nucleus is emitted, not an electron: en.wikipedia.org/wiki/Alpha_decay $\endgroup$ – Urgje Sep 28 '15 at 10:33
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    $\begingroup$ I'm voting to close this question as off-topic because it shows insufficient research effort. $\endgroup$ – ACuriousMind Sep 28 '15 at 12:55
  • $\begingroup$ @ACuriousMind Really. This question demonstrates absolutely no research effort, not merely insufficient research effort. $\endgroup$ – garyp Sep 28 '15 at 13:22

In answer to your question

So, what is the anti-particle for proton?

The following visual guide from the blog article Why Making Neutral Antimatter is Such A Big Deal! is helpful in this regard:

enter image description here


It's called the antiproton. You can literally google "proton antiparticle".


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