New determination of proton spectroscopic factors and reduced widths for Be-8 states in the 16.5-18.0 MeV excitation energy region via the study of the Li-7(He-3, d)Be-8 transfer reaction at E-lab=20 MeV: Implication for the Li-7(p, alpha)He-4 hydrogen burning reaction

Belhout A.; Ouichaoui S.; Beaumevieille H.; Bouchemha A.; Bogaert G.; Fortier S.; Kiener J.; Lefebvre-Schuhl A.; Maison J. M.; Rosier L.; Rotbard J.; Tatischeff V.; Thibaud J. P.; Vernotte J.

首页> 外文期刊>Physical review, C >New determination of proton spectroscopic factors and reduced widths for Be-8 states in the 16.5-18.0 MeV excitation energy region via the study of the Li-7(He-3, d)Be-8 transfer reaction at E-lab=20 MeV: Implication for the Li-7(p, alpha)He-4 hydrogen burning reaction

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New determination of proton spectroscopic factors and reduced widths for Be-8 states in the 16.5-18.0 MeV excitation energy region via the study of the Li-7(He-3, d)Be-8 transfer reaction at E-lab=20 MeV: Implication for the Li-7(p, alpha)He-4 hydrogen burning reaction

机译：通过研究Li-7（HE-3，D）在E-Lab = 20MeV下的Li-7（HE-3，D）为-8转移反应，在16.5-18.0MeV励磁能量区域中新测定质子光谱因子和Be-8态的宽度降低宽度：对Li-7（p，alpha）He-4氢气反应的影响

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The angular distributions of Be-8 states in the excitation energy region E-x similar to (16.5-18.2) MeV produced in the Li-7(He-3, d)Be-8 proton transfer reaction have been measured at the Orsay 14.8-MV tandem accelerator for He-3(2+) ion bombarding energy, E-lab = 20 MeV, and forward angular range, theta(lab) = 5 degrees-50 degrees. A high energy resolution detection system composed of a split-pole magnetic spectrometer and a Delta E - E, position-sensitive drift chamber was used to record the energy spectra of outgoing deuterons. The measured cross section data for the direct reaction component have been separated from the compound nucleus one, then analyzed in the framework of the nonlocal, finite-range (FR)-distorted-wave Born approximation (DWBA) theory. New values of the (CS)-S-2 and (Sp(1/2), S-p3/2) proton absolute and partial spectroscopic factors and related gamma(2)(p)(a) proton reduced widths versus the p + Li-7 channel radius have been extracted for the 2(+)(16.626) and 2(+)(16.922), T = 0 + 1 isospin-mixed loosely bound states of astrophysical interest and the 1(+)(17.640), T = 1 unbound state of Be-8. They are compared to sparse earlier experimental values and to shell-model-predicted ones from the literature, and are discussed. In particular, the status of the spectroscopic information on the 2(+) isospin-mixed doublet is reviewed and updated. The application in nuclear astrophysics of the DWBA derived results is emphasized.

机译：在Li-7（HE-3，D）中产生的（16.5-18.2）eX中的BE-8状态的角度分布在Li-7（HE-3，D）为-8质子转移反应中，在Orsay 14.8-mV下测量串联加速器为HE-3（2+）离子轰击能量，E-LAB = 20 MEV，返回角范围，θ（实验室）= 5度-50度。使用由分裂极磁光谱仪和ΔE-e，位置敏感漂移室组成的高能量分辨检测系统用于记录输出氘核的能谱。直接反应组分的测量横截面数据已与化合物核分离，然后在非局部，有限范围（FR）的框架中分析 - 多波浪出生的近似（DWBA）理论。（CS）-S-2和（SP（1/2），S-P3 / 2）质子绝对和局部光谱因子和相关γ（2）（P）（a）质子的新值降低宽度与p已提取2（+）（16.626）和2（+）（16.922），T = 0 + 1 isospin-ystroSthersicy兴趣和1（+）（17.640）（17.640）的+ Li-7通道半径，t = 1个未结合的BE-8状态。将它们与稀疏早期的实验值进行比较，并讨论了来自文献的壳模型预测。特别地，综述并更新了2（+）索烃混合双板上的光谱信息的状态。强调了DWBA核天体物理学的应用。

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《Physical review, C》 |2017年第5期|共13页
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Belhout A.; Ouichaoui S.; Beaumevieille H.; Bouchemha A.; Bogaert G.; Fortier S.; Kiener J.; Lefebvre-Schuhl A.; Maison J. M.; Rosier L.; Rotbard J.; Tatischeff V.; Thibaud J. P.; Vernotte J.;
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USTHB Fac Phys BP 32 Algiers 16111 Algeria;

USTHB Fac Phys BP 32 Algiers 16111 Algeria;

USTHB Fac Phys BP 32 Algiers 16111 Algeria;

USTHB Fac Phys BP 32 Algiers 16111 Algeria;

Univ Paris XI CNRS IN2P3 CSNSM Campus Orsay F-91405 Orsay France;

Univ Paris XI CNRS IN2P3 Inst Phys Nucl F-91406 Orsay France;

Univ Paris XI CNRS IN2P3 CSNSM Campus Orsay F-91405 Orsay France;

Univ Paris XI CNRS IN2P3 CSNSM Campus Orsay F-91405 Orsay France;

Univ Paris XI CNRS IN2P3 Inst Phys Nucl F-91406 Orsay France;

Univ Paris XI CNRS IN2P3 Inst Phys Nucl F-91406 Orsay France;

Univ Paris XI CNRS IN2P3 Inst Phys Nucl F-91406 Orsay France;

Univ Paris XI CNRS IN2P3 CSNSM Campus Orsay F-91405 Orsay France;

Univ Paris XI CNRS IN2P3 CSNSM Campus Orsay F-91405 Orsay France;

Univ Paris XI CNRS IN2P3 Inst Phys Nucl F-91406 Orsay France;

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中图分类原子核物理学、高能物理学;
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1. New determination of proton spectroscopic factors and reduced widths for Be-8 states in the 16.5-18.0 MeV excitation energy region via the study of the Li-7(He-3, d)Be-8 transfer reaction at E-lab=20 MeV: Implication for the Li-7(p, alpha)He-4 hydrogen burning reaction [J] . Belhout A., Ouichaoui S., Beaumevieille H., Physical review, C . 2017,第5期

机译：通过研究Li-7（HE-3，D）在E-Lab = 20MeV下的Li-7（HE-3，D）为-8转移反应，在16.5-18.0MeV励磁能量区域中新测定质子光谱因子和Be-8态的宽度降低宽度：对Li-7（p，alpha）He-4氢气反应的影响
2. New determination of proton spectroscopic factors and reduced widths for ~8Be states in the 16.5-18.0 MeV excitation energy region via the study of the ~7Li(~3He,d)~8Be transfer reaction at E_(lab) = 20 MeV: Implication for the ~7Li( p,α)~4He hydrogen burning reaction [J] . A. Belhout, S. Ouichaoui, H. Beaumevieille, Physical review, C . 2017,第5期

机译：通过研究〜7LI（〜3He，D）〜8Be转移反应在16.5-18.0MeV激发能源区中的质子光谱因子的新测定〜8be状态的宽度降低〜8be〜8be的转移反应〜7li（p，α）〜4he燃烧反应
3. New determination of proton spectroscopic factors and reduced widths for ~8Be states in the 16.5–18.0 MeV excitation energy region via the study of the ~7Li (~3He,d)~8Be transfer reaction at E_(lab) = 20 MeV: Implication for the ~7Li( p, α) ~4He hydrogen burning reaction [J] . A. Belhout, S. Ouichaoui, H. Beaumevieille, Physical Review C . 2017,第期

机译：通过研究〜7LI（〜3HE，D）〜8BE转移反应在16.5-18.0MeV激发能源区中的质子光谱因子的新测定〜8be状态的宽度。（实验室）= 20mev：含义〜7li（p，α）〜4he氢气反应
4. Light charged and neutral particle production in proton and alpha reactions on natSi at energies between 20 and 65 MeV [C] . C. Dufauquez, Y. El Masri, V. Roberfroid, International Conference on Nuclear Data for Science and Technology . 2005

机译：质子中的光电和中性颗粒生产和Natsi的Energies的Natsi的反应在20到65 MeV之间
5. Asymmetry Dependence of Spectroscopic Factors: A Study of Transfer Reactions on Argon Isotopes at 70 MeV/u [D] . Manfredi, Juan José, Jr. 2018

机译：光谱因子的不对称依赖性：在70 MeV / u的氩同位素上的转移反应研究
6. New determination of proton spectroscopic factors and reduced widths for $^{8}\mathrm{Be}$ states in the $16.5-18.0$ MeV excitation energy region via the study of the $^{7}\mathrm{Li}(^{3}\mathrm{He},d)^{8}\mathrm{Be}$ transfer reaction at ${E}_{\mathrm{lab}}=20$ MeV: Implication for the $^{7}\mathrm{Li}(p,\alpha)^{4}\mathrm{He}$ hydrogen burning reaction [O] . Belhout, A., Ouichaoui, S., Beaumevieille, H., 2017

机译：通过对$ ^ {7} \ mathrm {Li}（^ {的研究），对$ 16.5-18.0 $ MeV激发能区域中$ ^ {8} \ mathrm {Be} $态的质子光谱因子和减小的宽度的新确定3} \ mathrm {He}，d）^ {8} \ mathrm {Be} $在$ {E} _ {\ mathrm {lab}} = 20 $ MeV的转移反应：$ ^ {7} \ mathrm的含义{Li}（p，\ alpha）^ {4} \ mathrm {He} $氢燃烧反应
7. Study of the Reactions Li-6/P alpha/ He-3, Li-6/D Alpha ( He-4, Li-6)DP Sub 0/ Li-7 and Li-6/DP Sub 1/ Li-7 Sup 'From 300 Ke V to 1000 Ke V [R] . Bertrand, F., Grenier, G., Pornet, J. 1968

机译：反应Li-6 / p alpha / He-3，Li-6 / D alpha（He-4，Li-6）Dp sub 0 / Li-7和Li-6 / Dp sub 1 / Li-7 sup的反应研究'从300 Ke V到1000 Ke V.

New determination of proton spectroscopic factors and reduced widths for Be-8 states in the 16.5-18.0 MeV excitation energy region via the study of the Li-7(He-3, d)Be-8 transfer reaction at E-lab=20 MeV: Implication for the Li-7(p, alpha)He-4 hydrogen burning reaction

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