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B. A. Moftah

Publications and source records attributed to B. A. Moftah.

2 recordsLinked to original sources

Muon capture on Chlorine-35

We report measurements of $γ$--ray spectra from muon capture on $^{35}$Cl. For the allowed Gamow--Teller transitions to the $^{35}$S$(2939, 3/2^+)$ state and the $^{35}$S$(3421, 5/2^+)$ state we obtained their capture rates, hyperfine dependences and $γ$--$ν$ correlation coefficients. The capture rates and hyperfine dependences were compared to shell model calculations using the complete 1s--0d space and the universal SD interaction. With $g_p / g_a = 6.7$ and $g_a = -1.00$ (or $g_a = -1.26$) we found agreement of the model and the data at the 1--2 $σ$ level. However, we caution that the transitions are sensitive to $\ell = 2$ forbidden matrix elements.

nucl-ex

Gamma-rays from Muon Capture in $^{14}$N

Many new $γ$-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($μ^{-}$,$ν$n)$^{13}$C compare favourably with states observed in the reaction $^{14}$N($γ$,p)$^{13}$C. More precise energies are also given for the 7017 and 6730 keV $γ$-rays in $^{14}$C.

nucl-ex