Probing isospin mixing with the giant dipole resonance in the Zn-60 compound nucleus

Gosta G.; Mentana A.; Camera F.; Bracco A.; Ceruti S.; Benzoni G.; Blasi N.; Brambilla S.; Capra S.; Crespi F. C. L.; Giaz A.; Leoni S.; Million B.; Riboldi S.; Porzio C.; Ziliani S.; Wieland O.; Nannini A.; Rocchini M.; Marchini N.; Ciemala M.; Kmiecik M.; Maj A.; Wasilewska B.; Zieblinski M.; Filipescu D.; Kaur J.; Marginean N.; Pascu S.; Glodariu T.; Ghita D.; Zamfir V; Valiente-Dobon J. J.; de Angelis G.; Galtarossa F.; Goasduff A.; Bayram T.; Gadea A.; Montaner A.; Zanon I; Brugnara D.; Gozzelino A.; Pasqualato G.; Menegazzo R.; Gottardo A.; Jaworski G.; Lenzi S.; Napoli D.; Testov D.; Siciliano M.; Marchi T.; Mengoni D.; Bazzacco D.; Boso A.; John P. R.; Recchia F.; Raabe R.; Poleshchuk O.; Yang J.

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Probing isospin mixing with the giant dipole resonance in the Zn-60 compound nucleus

机译：在Zn-60化合物核中探测诸如巨孔共振的异位旋转孔

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An experimental study of the isospin mixing in the mass region A = 60 was made by measuring the gamma decay from the giant dipole resonance in the compound nuclei Zn-60 and Zn-62. These compound nuclei were populated at two different excitation energies, E* = 47 MeV and E* = 58 MeV using the fusion evaporation reactions S-32 + Si-28 at the bombarding energy of 86 and 110 MeV and S-32 + Si-30 at 75 and 98 MeV. In the experiment, performed at the Laboratori Nazionali di Legnaro of the Istituto Nazionale di Fisica Nucleare (INFN), the gamma rays were measured with the GALILEO detection system in which large-volume LaBr3(Ce) detectors were added to the HPGe detectors. The Coulomb spreading width was obtained from the comparison of the two reactions and then the isospin mixing parameter at zero temperature and the isospin-symmetry-breaking correction for beta decay were deduced. The present results were compared with data of the same type in other mass regions and with data from mass and beta-decay measurements and with theory. The present data allow us to deduce for the first time a consistent picture for mass dependence of isospin mixing and for the corresponding correction for the beta decay, supporting a reliable extension to the very interesting region of Sn-100.

机译：通过测量复合核Zn-60和Zn-62中巨偶极共振的γ衰变，对A=60质量区的同位旋混合进行了实验研究。在86和110 MeV的轰击能量下，使用熔合蒸发反应S-32+Si-28，在75和98 MeV的轰击能量下，以两种不同的激发能（E*=47 MeV和E*=58 MeV）填充这些复合核。在实验中，伽利略探测系统测量了伽利略伽利略伽利略伽利略伽利略伽利略伽利略伽利略伽利略伽利略伽利略伽利略伽利略伽利略伽利略伽利略伽利略伽利略伽利略伽利略伽利略伽利略伽利略伽利略伽利略伽利略伽利略伽利略伽利略伽利略伽利略伽利略伽利略伽利略伽利略。通过对这两个反应的比较，得到了库仑扩散宽度，进而导出了零温度下的同位旋混合参数和β衰变的同位旋对称性破缺修正。目前的结果与其他质量区域的同类数据、质量和β衰变测量数据以及理论进行了比较。目前的数据允许我们首次推断出同位旋混合的质量依赖性以及β衰变的相应校正的一致性图片，支持对非常有趣的Sn-100区域的可靠扩展。

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来源
《Physical review, C》 |2021年第4期|共6页
作者
Gosta G.; Mentana A.; Camera F.; Bracco A.; Ceruti S.; Benzoni G.; Blasi N.; Brambilla S.; Capra S.; Crespi F. C. L.; Giaz A.; Leoni S.; Million B.; Riboldi S.; Porzio C.; Ziliani S.; Wieland O.; Nannini A.; Rocchini M.; Marchini N.; Ciemala M.; Kmiecik M.; Maj A.; Wasilewska B.; Zieblinski M.; Filipescu D.; Kaur J.; Marginean N.; Pascu S.; Glodariu T.; Ghita D.; Zamfir V; Valiente-Dobon J. J.; de Angelis G.; Galtarossa F.; Goasduff A.; Bayram T.; Gadea A.; Montaner A.; Zanon I; Brugnara D.; Gozzelino A.; Pasqualato G.; Menegazzo R.; Gottardo A.; Jaworski G.; Lenzi S.; Napoli D.; Testov D.; Siciliano M.; Marchi T.; Mengoni D.; Bazzacco D.; Boso A.; John P. R.; Recchia F.; Raabe R.; Poleshchuk O.; Yang J.;
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作者单位

Univ Milan Dipartimento Fis Milan Italy;

Univ Milan Dipartimento Fis Milan Italy;

Univ Milan Dipartimento Fis Milan Italy;

Univ Milan Dipartimento Fis Milan Italy;

Ist Nazl Fis Nucl Sez Milano Milan Italy;

Ist Nazl Fis Nucl Sez Milano Milan Italy;

Ist Nazl Fis Nucl Sez Milano Milan Italy;

Ist Nazl Fis Nucl Sez Milano Milan Italy;

Univ Milan Dipartimento Fis Milan Italy;

Univ Milan Dipartimento Fis Milan Italy;

Ist Nazl Fis Nucl Sez Milano Milan Italy;

Univ Milan Dipartimento Fis Milan Italy;

Ist Nazl Fis Nucl Sez Milano Milan Italy;

Univ Milan Dipartimento Fis Milan Italy;

Univ Milan Dipartimento Fis Milan Italy;

Univ Milan Dipartimento Fis Milan Italy;

Ist Nazl Fis Nucl Sez Milano Milan Italy;

Ist Nazl Fis Nucl Sez Firenze Florence Italy;

Ist Nazl Fis Nucl Sez Firenze Florence Italy;

Ist Nazl Fis Nucl Sez Firenze Florence Italy;

Polish Acad Sci Inst Nucl Phys Krakow Poland;

Polish Acad Sci Inst Nucl Phys Krakow Poland;

Polish Acad Sci Inst Nucl Phys Krakow Poland;

Polish Acad Sci Inst Nucl Phys Krakow Poland;

Polish Acad Sci Inst Nucl Phys Krakow Poland;

Extreme Light Infrastruct ELI NP Bucharest Romania;

Extreme Light Infrastruct ELI NP Bucharest Romania;

Horia Hulubei Natl Inst Phys &

Nucl Engn IFIN HH Bucharest Romania;

Horia Hulubei Natl Inst Phys &

Nucl Engn IFIN HH Bucharest Romania;

Extreme Light Infrastruct ELI NP Bucharest Romania;

Extreme Light Infrastruct ELI NP Bucharest Romania;

Extreme Light Infrastruct ELI NP Bucharest Romania;

Ist Nazl Fis Nucl Lab Nazl Legnaro Legnaro Italy;

Ist Nazl Fis Nucl Lab Nazl Legnaro Legnaro Italy;

Ist Nazl Fis Nucl Lab Nazl Legnaro Legnaro Italy;

Ist Nazl Fis Nucl Lab Nazl Legnaro Legnaro Italy;

Ist Nazl Fis Nucl Lab Nazl Legnaro Legnaro Italy;

Univ Valencia CSIC Inst Fis Corpuscular Valencia Spain;

Univ Padua Dipartimento Fis Padua Italy;

Ist Nazl Fis Nucl Lab Nazl Legnaro Legnaro Italy;

Ist Nazl Fis Nucl Lab Nazl Legnaro Legnaro Italy;

Ist Nazl Fis Nucl Lab Nazl Legnaro Legnaro Italy;

Ist Nazl Fis Nucl Lab Nazl Legnaro Legnaro Italy;

Ist Nazl Fis Nucl Sez Padova Padua Italy;

Ist Nazl Fis Nucl Lab Nazl Legnaro Legnaro Italy;

Ist Nazl Fis Nucl Lab Nazl Legnaro Legnaro Italy;

Univ Padua Dipartimento Fis Padua Italy;

Ist Nazl Fis Nucl Lab Nazl Legnaro Legnaro Italy;

Ist Nazl Fis Nucl Lab Nazl Legnaro Legnaro Italy;

Ist Nazl Fis Nucl Lab Nazl Legnaro Legnaro Italy;

Ist Nazl Fis Nucl Lab Nazl Legnaro Legnaro Italy;

Univ Padua Dipartimento Fis Padua Italy;

Ist Nazl Fis Nucl Sez Padova Padua Italy;

Univ Padua Dipartimento Fis Padua Italy;

Univ Padua Dipartimento Fis Padua Italy;

Univ Padua Dipartimento Fis Padua Italy;

Katholieke Univ Leuven Dept Phys &

Astron Leuven Belgium;

Katholieke Univ Leuven Dept Phys &

Astron Leuven Belgium;

Katholieke Univ Leuven Dept Phys &

Astron Leuven Belgium;

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中图分类原子核物理学、高能物理学;
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机译：〜（90）Zr核中巨偶极子共振的同位旋分裂的特征
7. Measurement of isospin mixing at a finite temperature in 80Zr via giant dipole resonance decay [J] . A. Corsi12 O. Wieland2, etc.. Physical Review C: Nuclear Physics . 2011,第4期

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8. Measurement of isospin mixing in hot ~80Zr compound nucleus [C] . A. Corsi, A. Bracco, F. Camera, International School of Physics "Enrico Fermi" . 2011

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9. Description of isoscalar giant dipole resonance in nuclei [D] . Pochivalov, Oleksiy Grigorievich 2006

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10. Zero-quantum frequency-selective recoupling of homonuclear dipole-dipole interactions in solid state nuclear magnetic resonance [O] . Kan-Nian Hu, Robert Tycko -1

机译：固态核磁共振中同核偶极-偶极相互作用的零量子频率选择性耦合
11. Giant dipole resonance built on hot rotating nuclei produced during evaporation of light particles from theMo88compound nucleus [O] . M. Ciemała, M. Kmiecik, A. Maj, 2015

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12. Isospin Splitting of Giant Dipole Resonance in exp 13 C. [R] . Kirchbach, M. N. 1981

机译：在exp 13 C中同位旋分裂的巨偶极子共振。

Probing isospin mixing with the giant dipole resonance in the Zn-60 compound nucleus

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