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arXiv 0705.1678nucl-exnucl-th
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库仑势垒附近能量下~ 6 He与~(208)Pb散射中α粒子的产生

alpha-particle production in the scattering of 6He by 208Pb at energies around the Coulomb barrier

D. Escrig, A. M. Sanchez-Benitez, A. M. Moro, M. A. G. Alvarez, M. V. Andres, C. Angulo, M. J. G. Borge, J. Cabrera, S. Cherubini, P. Demaret, J. M. Espino, P. … 展开作者

D. Escrig, A. M. Sanchez-Benitez, A. M. Moro, M. A. G. Alvarez, M. V. Andres, C. Angulo, M. J. G. Borge, J. Cabrera, S. Cherubini, P. Demaret, J. M. Espino, P. Figuera, M. Freer, J. E. Garcia-Ramos, J. Gomez-Camacho, M. Gulino, O. R. Kakuee, I. Martel, C. Metelko, F. Perez-Bernal, J. Rahighi, K. Rusek, D. Smirnov, O. Tengblad, V. Ziman

摘要:

给出了6 He +208 Pb在库仑势垒附近和以下能量散射的新实验数据。来自弹丸碎裂的碎裂产物的产率由强的$α$颗粒群控制。分析了该群的能量分布和角分布,并与理论计算进行了比较。分析表明,在该反应中以后向角发射的$α$粒子主要是由于两个中子转移到末态核的弱束缚态。

英文摘要:

New experimental data from the scattering of 6He+208Pb at energies around and below the Coulomb barrier are presented. The yield of breakup products coming from projectile fragmentation is dominated by a strong group of $α$ particles. The energy and angular distributions of this group have been analyzed and compared with theoretical calculations. This analysis indicates that the $α$ particles emitted at backward angles in this reaction are mainly due to two-neutron transfer to weakly bound states of the final nucleus.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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