Levels ofK38: TheCa

Study of the40Ca(π−, 2n)38K reaction at rest

“…There, the only possible attribution to transitions in 38K was a line at 2.65 MeV with a yield of 0.3 % per stopped pion. In the excitation spectra from the 4~ cQ 38K reaction many states were observed; however the reported spectra were restricted to low excitations of 6MeV [13] and 8MeV [14], respectively. States in 38K with excitation energies around 8 MeV are above the proton emission threshold at 5.13 MeV and below the neutron emission threshold at t2.07 MeV.…”

Excitation of6−and7+stretched states in theAnderson1, Baldwin2, Garcia3 et al. 1992Phys. Rev. C

“…3) and those predicted with the It is still of interest to ascertain the structure of the 5.28 MeV level observed in the high-energy (d, a) experiments. Such a level has not been identified in low-energy deuteron measurements at 16 -28 MeV [38], nor has the 3.458 7+ level, but at these energies the momentum transfer may be too low to excite a high-spin state, which the 5.28 MeV state must be. Could this level be the 6 state seen here at 5.3 MeV?…”