(d, α) Reactions on nuclei in the mass range 24–41

Bottega, A.; McMurray, William; Naudé, W. J.

doi:10.1016/0375-9474(69)90053-0

Cited by 19 publications

(2 citation statements)

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“…The corresponding mean life-time "~" of the compound nucleus 34C1 at the average excitation energy of 13.630 MeV, amounts to ~3.21• -20 sec in agreement with the slow reaction mechanism. Comparing this value of "'F" for the 3aC1 nucleus at an average excitation energy 13.630 MeV with that at 16.30 MeV, which amounts to F = 39 • 4 keV [9], one can see that these results are in agreement with the Fermi-gas model predicition [9]. The value of "T"' obtained here, being equal to that for the a•S nucleus at an average excitation energy -~ 17.4 MeV [11], reflects the nuclear shell-structure effects for even mass nuclei [9].…”

Section: Average Level Width "F"mentioning

confidence: 99%

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Statistical fluctuations of (d, p) and (d, α) reactions on32S target nuclei at 135°

Badawy

El-Sourogy

1977

Acta Physica

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The auto-correlation analysis of the fluctuations of the differential cross-sections of the (d, p) and (d, ~,) reactions on 3~S target at 135 ~ gave a mean level width "F'" of 20 + 5 kcV for the atCl compound nucleus at 13.630 MeV average excitation encrgy. This valuc of "'I"" eflects the nuclear shell structure ef fects for even mass number nuclei beside confirming the rermigas model predictions. The abscncc of correlation between associatcd as well as between Fon-associatod decay groups is confirmed. The validity of the Thomas-Porter distribution for nescribing the probability distribution of cross-sections around their averages is attributed do a very small contribution of the direct process to the reaction mechanism if present. The tprobability of the a-isospin forbidden transition to the 30p first excited statc is discussed in the frame of the isospin mixing. I. IntroduetionThe angular distributions of the different groups emitted in the 32S(d, p)aaS reaction were studied [1][2][3][4][5][6][7] in the deuteron energy range from 1.0 up to 5.0 MeV, and a contribution from both the direct and compound nucleus processes to the reaction mechanism was recognised. The angular distribution of the (d, ~) reaction in 3~S targets in the energy range from 2.0 up to 5.5 MeV [8,9] showed the characteristic features of the compound nucleus mechanism.In all these previous studies the mechanism of the (d, p) and (d, ~t) reaction on the 32S target nuclei was investigated vŸ the analysis of the measured angular distributions in terms of both the direct and compound nucleus processes beside the interference between both. The use of thick 32S targets beside the big energy steps used in measurements prevented the obtained data from being suitable for ERICSOrr analysis of the present cross-section fluctuations.Accordingly, we still have to investigate these reaction mechanisms, especially in the low energy range of incident deuterons. This is carried out here via the analysis of the accurately measured yield curves of these reactions in terms of the ERICSO• methods [10], on the one hand. On the other hand the Acta Physir -4cademiae Scientiarum Hungaricae 43, 1977

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Section: Average Level Width "F"mentioning

confidence: 99%

“…The angular distribution of the (d, ~) reaction in 3~S targets in the energy range from 2.0 up to 5.5 MeV [8,9] showed the characteristic features of the compound nucleus mechanism.…”

Section: Introduetionmentioning

confidence: 99%