The (τ,d), (d, p) and (d, n) reactions on28Si

Comments on ?the (3He,d) reaction on28Si?

“…The choice of an optical model potential for the deuteron channel is rather critical. First, strong jdependent effects arc observed in 28si(aHe, d)29p [1,2], and it is known that such effects, particularly l=l j-dependence, are well explained if one uses a deuteron optical model potential which correctly describes not only elastic scattering cross sections, but also polarization [11,12]. That is, a realistic value of the deuteron spin-orbit potential is required to explain j-dependence via DWBA.…”

“…Inspection of the predicted angular distributions shows, further, that potential B predicts angular distributions in good agreement with the experimental data, whereas potential A predicts angular distributions with considerably deeper minima than exhibited by the data. Potential A is reasonably representative of those used by a number of authors [1][2][3][4] in this mass region. The spectroscopic factor 0.42 + 0.02 predicted by potential B is quite reasonable, and in agreement with expectations from large-basis shell-model calculations [14], which set an upper limit of 0.50.…”

“…A recent paper by Leleux et al [1], hereafter referred to as LMMP, presents evidence for a very large variation of the spectroscopic factor for the reaction 28Si(3He, d)Z9P (ground state, sl/2). Angular distribution data are available for this reaction at 18, 20, 24.5, 35.5, and 40 MeV [2][3][4].…”

SCINFUL: A Monte Carlo based computer program to determine a scintillator full energy response to neutron detection for E/sub n/ between 0. 1 and 80 MeV: Program development and comparisons of program predictions with experimental data

“…Comparisons were also made with efficiencies reported by Leleux et al 61 for a 2cm height NE-102 detector and E n between 7 and 14 MeV, and with a large detector (12.7-cm diameter by 30.5-cm height) by Grady et al" For the Leleux et al 61 data, the SCINFUL calculations agreed with the data at E n = 7 MeV, but underpredicted the reported data for E n > 10 MeV by ~10%. As for the Brady et al 62 data, the SCINFUL calculations were unable to reproduce the variations of efficiency exhibited by the reported experimental data.…”