Many new $\gamma$-rays have been observed, following muon capture on $^{ 14}$N. One had been reported before, and the low yield is confirmed, indicating that the nuclear structure of $^{ 14}$N is still not understood. Gamma-rays from $^{ 13}$C resulting from the reaction $^{ 14}$N($\mu^{ -}$,$\nu$n)$^{ 13}$C compare favourably with states observed in the reaction $^{ 14}$N($\gamma$,p)$^{ 13}$C. More precise energies are also given for the 7017 and 6730 keV $\gamma$-rays in $^{ 14}$C.
Categories: nucl-ex