Confirmation of Giant Pairing Vibration evidence in 12,13C(18O,16O)14,15C reactions at 275 MeV

被引：11
|
作者：
Cappuzzello, F. [1 ,2 ]
Carbone, D. [2 ]
Cavallaro, M. [2 ]
Spatafora, A. [1 ,2 ]
Ferreira, J. L. [3 ]
Agodi, C. [2 ]
Linares, R. [3 ]
Lubian, J. [3 ]
机构：
[1] Univ Catania, Dipartimento Fis & Astron Ettore Majorana, Catania, Italy
[2] Ist Nazl Fis Nucl, Lab Nazionali Sud, Catania, Italy
[3] Univ Fed Fluminense, Inst Fis, Niteroi, RJ, Brazil
来源：
EUROPEAN PHYSICAL JOURNAL A | 2021年 / 57卷 / 01期
基金：
欧洲研究理事会;
关键词：
56;
D O I：
10.1140/epja/s10050-021-00345-7
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
The Giant Pairing Vibration (GPV) is a correlated two-nucleon excitation mode in atomic nuclei predicted long time ago. It is expected to be excited in two-nucleon transfer reactions, similarly to the pairing vibrations feeding the ground states of even-even nuclei near shell-closure. Recent experiments have provided evidence for this mode in 14C and 15C nuclei populated via 12C,13C(18O,16O)14C,15C two-neutron transfer reactions at 84 MeV beam energy. In the present paper, new data show the persistence of the same structures in the energy spectra of 14C and 15C populated by the same reactions at a higher bombarding energy of 275 MeV. The extracted centroid, width, spin-parity and transition probability fully agree with the previous observation thus giving a robust confirmation that the GPV mode is populated in such transfer reactions.
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页数：8
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