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首页> 外文期刊>Physical review, C >Elastic scattering for the B-8 and Be-7+Pb-208 systems at near-Coulomb barrier energies
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Elastic scattering for the B-8 and Be-7+Pb-208 systems at near-Coulomb barrier energies

机译：在近 - 库仑屏障能量的B-8和BE-7 + PB-208系统的弹性散射

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摘要

The elastic scattering of the weakly bound radioactive nuclei B-8 and Be-7 from a Pb-208 target was measured for the first time in the energy range around the Coulomb barrier. The data were analyzed using the optical model and the continuum discretized coupled channels (CDCC) formalisms. The reaction cross sections extracted from the optical model fits clearly indicate a remarkably enhanced reaction probability for the very weakly bound B-8 (S-p = 137.5 keV) compared to similar mass nuclei interacting with the same target nucleus. CDCC calculations assuming a He-3+He-4 cluster model well described the Be-7 experimental elastic scattering angular distributions, whereas the use of a Be-7+p cluster model of B-8 with an inert Be-7 core gave a relatively poor description of the corresponding experimental data, suggesting that this model may be too simplistic and the possibility of core excitation should not be ignored.
机译：在Coulomb屏障周围的能量范围内首次测量来自PB-208靶标的弱束放射性核B-8和BE-7的弹性散射。 使用光学模型和连续耦合耦合通道（CDCC）形式主义分析数据。 与与相同靶核相互作用的相似的质量核相比，从光学模型中提取的反应横截面明确表示非常弱结合的B-8（S-P = 137.5keV）的显着增强的反应概率。 假设HE-3 + HE-4集群模型的CDCC计算良好描述了BE-7实验弹性散射角分布，而使用B-8的BE-7 + P簇模型具有惰性BE-7核心给出了 相应的实验数据的描述相对较差，表明该模型可能太简单，不应忽略核心激励的可能性。

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  • 来源
    《Physical review, C》 |2019年第2期|共13页
  • 作者

    Mazzocco M.; Keeley N.; Boiano A.; Boiano C.; La Commara M.; Manea C.; Parascandolo C.; Pierroutsakou D.; Signorini C.; Strano E.; Torresi D.; Yamaguchi H.; Kahl D.; Acosta L.; Di Meo P.; Fernandez-Garcia J. P.; Glodariu T.; Grebosz J.; Guglielmetti A.; Hirayama Y.; Imai N.; Ishiyama H.; Iwasa N.; Jeong S. C.; Jia H. M.; Kim Y. H.; Kimura S.; Kubono S.; La Rana G.; Lin C. J.; Lotti P.; Marquinez-Duran G.; Martel I; Miyatake H.; Mukai M.; Nakao T.; Nicoletto M.; Pakou A.; Rusek K.; Sakaguchi Y.; Sanchez-Benitez A. M.; Sava T.; Sgouros O.; Soukeras V; Soramel F.; Stiliaris E.; Stroe L.; Teranishi T.; Toniolo N.; Wakabayashi Y.; Watanabe Y. X.; Yang L.; Yang Y. Y.; Zhang H. Q.;

  • 作者单位

    Univ Padua Dipartimento Fis &

    Astron Via F Marzolo 8 I-35131 Padua Italy;

    Natl Ctr Nucl Res Ul Andrzeja Soltana 7 PL-05400 Otwock Poland;

    INFN Sez Napoli Via Cintia I-80126 Naples Italy;

    INFN Sez Milano Via Celoria 16 I-20133 Milan Italy;

    INFN Sez Napoli Via Cintia I-80126 Naples Italy;

    INFN Sez Padova Via F Marzolo 8 I-35131 Padua Italy;

    INFN Sez Napoli Via Cintia I-80126 Naples Italy;

    INFN Sez Napoli Via Cintia I-80126 Naples Italy;

    Univ Padua Dipartimento Fis &

    Astron Via F Marzolo 8 I-35131 Padua Italy;

    Univ Padua Dipartimento Fis &

    Astron Via F Marzolo 8 I-35131 Padua Italy;

    Univ Tokyo CNS Wako Branch 2-1 Hirosawa Wako Saitama 3510198 Japan;

    Univ Tokyo CNS Wako Branch 2-1 Hirosawa Wako Saitama 3510198 Japan;

    Univ Huelva Dept Fis Aplicada Campus El Carmen E-21071 Huelva Spain;

    INFN Sez Napoli Via Cintia I-80126 Naples Italy;

    INFN Sez Catania Via Santa Sofia 64 I-95123 Catania Italy;

    NIPNE 30 Reactorului St Magurele 077125 Romania;

    Polish Acad Sci Inst Nucl Phys Ul Radzikowskiego 152 PL-31342 Krakow Poland;

    INFN Sez Milano Via Celoria 16 I-20133 Milan Italy;

    KEK Oho 1-1 Tsukuba Ibaraki 3050801 Japan;

    Univ Tokyo CNS Wako Branch 2-1 Hirosawa Wako Saitama 3510198 Japan;

    KEK Oho 1-1 Tsukuba Ibaraki 3050801 Japan;

    Tohoku Univ Dept Phys Sendai Miyagi 9808578 Japan;

    KEK Oho 1-1 Tsukuba Ibaraki 3050801 Japan;

    China Inst Atom Energy POB 275 Beijing 102413 Peoples R China;

    KEK Oho 1-1 Tsukuba Ibaraki 3050801 Japan;

    KEK Oho 1-1 Tsukuba Ibaraki 3050801 Japan;

    Univ Tokyo CNS Wako Branch 2-1 Hirosawa Wako Saitama 3510198 Japan;

    INFN Sez Napoli Via Cintia I-80126 Naples Italy;

    China Inst Atom Energy POB 275 Beijing 102413 Peoples R China;

    INFN Sez Padova Via F Marzolo 8 I-35131 Padua Italy;

    Univ Huelva Dept Fis Aplicada Campus El Carmen E-21071 Huelva Spain;

    Univ Huelva Dept Fis Aplicada Campus El Carmen E-21071 Huelva Spain;

    KEK Oho 1-1 Tsukuba Ibaraki 3050801 Japan;

    KEK Oho 1-1 Tsukuba Ibaraki 3050801 Japan;

    Univ Tokyo CNS Wako Branch 2-1 Hirosawa Wako Saitama 3510198 Japan;

    INFN Sez Padova Via F Marzolo 8 I-35131 Padua Italy;

    Univ Ioannina Dept Phys Ioannina 45110 Greece;

    Univ Warsaw Heavy Ion Lab Ul Pasteura 5a PL-02093 Warsaw Poland;

    Univ Tokyo CNS Wako Branch 2-1 Hirosawa Wako Saitama 3510198 Japan;

    Univ Lisbon Nucl Phys Ctr P-1649003 Lisbon Portugal;

    NIPNE 30 Reactorului St Magurele 077125 Romania;

    Univ Ioannina Dept Phys Ioannina 45110 Greece;

    Univ Ioannina Dept Phys Ioannina 45110 Greece;

    Univ Padua Dipartimento Fis &

    Astron Via F Marzolo 8 I-35131 Padua Italy;

    Univ Athens Inst Accelerating Syst &

    Applicat Athens Greece;

    NIPNE 30 Reactorului St Magurele 077125 Romania;

    Kyushu Univ Dept Phys Motooka 744 Fukuoka Fukuoka 8190395 Japan;

    INFN LNL Viale Univ 2 I-35020 Legnaro PD Italy;

    RIKEN 2-1 Hirosawa Wako Saitama 3510198 Japan;

    KEK Oho 1-1 Tsukuba Ibaraki 3050801 Japan;

    Univ Tokyo CNS Wako Branch 2-1 Hirosawa Wako Saitama 3510198 Japan;

    Chinese Acad Sci Inst Modern Phys 509 Nanchang Rd Lanzhou 730000 Gansu Peoples R China;

    China Inst Atom Energy POB 275 Beijing 102413 Peoples R China;

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  • 正文语种 eng
  • 中图分类 原子核物理学、高能物理学;
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