Neutron-skin Thickness from the Study of the Anti-analog Giant Dipole Resonance

机译：来自抗模拟巨子共振的研究中的中子厚度

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The γ-decay of the anti-analog of the giant dipole resonance (AGDR) to the isobaric analog state has been measured following the p(~(124)Sn,n) reaction at a beam energy of 600 MeV/nucleon. The energy of the transition was also calculated with state-of-the-art self-consistent relativistic random-phase approximation (RPA) and turned out to be very sensitive to the neutron-skin thickness (ΔR_(pn)). By comparing the theoretical results with the measured one, the ΔR_(pn) value for ~(124)Sn was deduced to be 0.21 ± 0.07 fm, which agrees well with the previous results. The present method offers new possibilities for measuring the neutron-skin thicknesses of very exotic isotopes.

机译：在600meV /核的光束能量下的P（〜（124）Sn，N）反应后，测量了巨大偶极子共振（AGDR）的γ-衰减对等异组态的γ-衰减。还使用最先进的自我一致的相对论近似（RPA）计算过渡的能量，并原始对中子肤质厚度（ΔR_（PN））非常敏感。通过将测量的理论结果与测量值进行比较，〜（124）Sn的ΔR_（PN）值被推导为0.21±0.07 fm，这与先前的结果一致。本方法提供了测量非常异国情调同位素的中子厚度的新可能性。

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《International Conference on Nuclear Structure and Dynamics》|2012年||共8页
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A. Krasznahorkay; L. Stuhl; M. Csatlos; A. Algora; J. Gulyas; J. Timar; N. Paar; D. Vretenar; M.N. Harakeh; K. Boretzky; M. Heil; Yu.A. Litvinov; D. Rossi; C. Scheidenberger; H. Simon; H. Weick; A. Bracco; S. Brambilla; N. Blasi; F. Camera; A. Giaz; B. Million; L. Pellegri; S. Riboldi; O. Wieland; S. Altstadt; M. Fonseca; J. Glorius; K. Gobel; T. Heftrich; A. Koloczek; S. Krackmann; C. Langer; R. Plag; M. Pohl; G. Rastrepina; R. Reifarth; S. Schmidt; K. Sonnabend; M. Weigand; N. Kalantar-Nayestanaki; C. Rigollet; S. Bagchi; M.A. Najafi; T. Aumann; L. Atar; M. Heine; M. Holl; A. Movsesyan; P. Schrock; V. Volkov; F. Wamers; E. Fiori; B. Loher; J. Marganiec; D. Savran; H.T. Johansson; P. Diaz Fernandez; U. Garg; D.L. Balabanski;
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中图分类 O57-53;
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neutron-skin thickness; giant dipole resonances; relativistic random-phase approximation; rare-isotope beams;

机译：中子肤质;巨大偶极子共振;相对论随机相近似;稀有同位素梁;

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Neutron-skin Thickness from the Study of the Anti-analog Giant Dipole Resonance

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