The (d, 6Li) reaction on 24Mg, 26Mg and 28Si at 35 MeV

Cossairt, J.D.; Bent, R.D.; Broad, A.S.; Becchetti, F. D.; Jänecke, J.

doi:10.1016/0375-9474(76)90153-6

Cited by 32 publications

(5 citation statements)

References 18 publications

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“…If the average experimental rather than theoretical relative ground-state e-spectroscopic factor is used together with the absolute value of 0.18, the value is S = 0.09. The average experimental value was obtained from the summary of Chung et al [1][2][3][4][5][6] which in-cludes studies of the reactions (6El, d) [7], (d, 6Li) [8], (e, 2~) [9] and (p, p c~) [10]. These values of 0.11 and 0.09 are in good agreement with the value S = 0.08 obtained from this study.…”

Section: T(o) ---T~]~~(o)supporting

confidence: 76%

Elastic scattering of20Ne on24Mg

et al. 1983

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Elastic scattering of 2~ on 24Mg was studied at an incident Z~ energy of 40 MeV. Scattered Z~ and Z4Mg nuclei were observed in coincidence with a standard surface barrier and a position sensitive detector. The measured angular distribution shows periodic oscillations which are identified with the ZgMg(2~ Z4Mg)2~ reaction. Taking interference between elastic scattering and transfer into account, an e-spectroscopic factor of S = 0.08 _+ 0.02 was deduced from the amplitude of the oscillations.

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Section: T(o) ---T~]~~(o)supporting

confidence: 76%

Elastic scattering of20Ne on24Mg

et al. 1983

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“…Large S(a) value has been reported for the second o+ state at 6.44 Me V. 263 l For this o+ state, the quartet model by Arima et al 11 BJ has suggested a quartet structure excited from (sd) shell to (Pf) shell. However, in results of the present cluster-model calculation, the wave function of the second o+ state consists predominantly of (sd) 8 In Table 5-V, the a-pick-up spectroscopic factors of 24 Mg~2 0 Ne* +a are Table 5 In Table 5-VI, oscillator quantum components of five o+ levels obtained in Nmax=30 are shown in percentage.…”

Section: Summary On 20 Nementioning

confidence: 90%

Chapter II. Comprehensive Study of Alpha-Nuclei

Fujiwara

Horiuchi

Ikeda

et al. 1980

Prog. Theor. Phys. Suppl.

378

393

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Downloaded from the self-conjugate 4n nuclei which we call a-nuclei are especially stable energetically, therefore the fragmentation (or fission) thresholds of respective nuclei into constituent a-nuclei plus a residual nucleus lie in series starting in the region of quite low excitation energy.Since a-nuclei are strongly bound systems, they are hardly excited even when two a-nuclei are in a close distance. The fact that inter-nucleus forces between spin-isospin saturated nuclei are generally weak promotes further the tendency that a-nuclei preserve their identity in their interaction process. Furthermore the repulsive force of a short range part of the inter-nucleus inter-at Purdue University Libraries ADMN on June 1, 2015 http://ptps.oxfordjournals.org/ Downloaded from factorily the low-lying positive-parity excited states, 02 + at 7.66 MeV and 22 + (or 08 + ?) at ,...__,10.3 MeV shown in Fig. 1-1.From these studies, the ground rotational band (consisting of ground 01 +, 2 1 + at 4.44 MeV and 41 + at 14.08 MeV) was regarded as having a strong shellmodel-like character, although a-clustering effect is important. The latter nature (namely the persistency of a-clustering) was investigated in detail by Abe, Hiura and Tanaka 17 l by the use of the molecular orbital method preserving the spatial symmetry of [ 4 8 ]. Takigawa and Arima 18 l investigated the *> Many works were made with various frameworks and a-a potentials. Here, however, we do not mention them in detail. See a review article given by Tamagaki and Fujiwara for the works on the 3a problem.••> at Purdue University Libraries ADMN on June 1, 2015 http://ptps.oxfordjournals.org/ Downloaded from 15 0, 15 N, 17 0 and 11 F, the spacing between the centroids of the p and the sd shells is estimated as about 17 MeV. ii) We can deduce a value of fiw = 13.4 MeV corresponding to the harmonic oscillator parameter b = 1.76 fm at Purdue University Libraries ADMN on June 1, 2015 http://ptps.oxfordjournals.org/ Downloaded from Another standpoint for incorporating a 4p-4h configuration was the weak coupling model by Arima, Horiuchi and Sebe 58 >• 59 >• 60 > which assumed that the at Purdue University Libraries ADMN on June 1, 2015 http://ptps.oxfordjournals.org/ Downloaded from at Purdue University Libraries ADMN on June 1, 2015 http://ptps.oxfordjournals.org/ Downloaded from *' The RGM study for the "O+a system was also carried out by Siinkel and Wildermuth."'l **l Similar RGM analysis of the "0-a interaction was made by Ando, Ikeda and Suzuki 106 J by comparing with the a-a and "0-16 0 cases. at Purdue University Libraries ADMN on June 1, 2015 http://ptps.oxfordjournals.org/ Downloaded from at Purdue University Libraries ADMN on June 1, 2015 http://ptps.oxfordjournals.org/ Downloaded from *> As for wi'lr(t), harmonic oscillator functions and locally peaked Gaussian functions are also available by the use of fPNLM(J., v, S). Actually, the latter functions were examined and were found to give the same results obtained by the set (2·5) (Ref. 41)). at Purdue University Lib...

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“…3a) . Predictions based on the simplest SU(3) approximations seem to be in remarkably good agreement with experiment [36][37][38][39] and differ but little from those calculated with much more complicated shell-model wave functions a~. Some a-spectroscopic amplitudes for states of lfico and 2fic°excitation in s-d shell nuclei have been given in ref.…”

Section: Introductionmentioning

confidence: 54%

“…(39) . With q = 4, Q = 9, and (~,~) _ (82), for example, only the first term with Q" = 0 survives in eq.…”

mentioning

confidence: 99%

Alpha and 8Be cluster amplitudes and core excitations in s-d shell nuclei

Hecht

1977

Nuclear Physics A

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SU(3) and SU(4) recoupling are used to develop technique°for the calculation of norm and overlap matrix element°for properly antisymmetrized cluster wave function°. These techniques are illustrated in detail by the calculation of a and°13e cluster amplitude°for°fate°of a fewẽ xcitation in s-d shell nuclei. These extend earlier SU(3) strong coupling results for states of highest intrinsic deformation to all values of (~~making it possible to wlailate a-amplitudes for SU(3) weal: and intermediate coupling wave functions. The extreme SU(3) weak and strong coupling limits for a-amplitudes are compared for states of 1~excitation in light s-d shill nuclei. A general formulation is given for the calculation of spectroscopic amplitudes for the transfer of°He clusters in ('=C, a) or (' 4N, 6Li) reactions on nuclei for which SU(3) and SU(4) are meaningful symmetries. The method is illustrated by predictions of°Be amplitudes to the prominent rotational band°in lO Ne .

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The (d, 6Li) reaction on 24Mg, 26Mg and 28Si at 35 MeV

Cited by 32 publications

References 18 publications

Elastic scattering of20Ne on24Mg

Elastic scattering of20Ne on24Mg

Chapter II. Comprehensive Study of Alpha-Nuclei

Alpha and 8Be cluster amplitudes and core excitations in s-d shell nuclei

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