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Can a gamma initiate weak decay of a proton? 
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#1
Sep2211, 07:07 AM

PF Gold
P: 956

Does this ever happen?
p + [itex]\gamma[/itex] [itex]\rightarrow[/itex] n + e^{+} + [itex]\nu_e[/itex] It seems possible, if the [itex]\gamma[/itex] has enough energy, but I wonder if anyone can confirm that it happens. 


#2
Sep2211, 12:19 PM

Sci Advisor
PF Gold
P: 5,060

p + gamma > p + e+ + e then, electron capture. Combine, and you get the proposed reaction. This supports the view that there shouldn't be anything fundamental prohibiting this. 


#3
Sep2211, 01:06 PM

PF Gold
P: 956

Thank you. This does indeed make it seem even more plausible.



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