Nucleon transfer via (d,p) using TIARA with a 24Ne radioactive beam
Nucleon transfer via (d,p) using TIARA with a 24Ne radioactive beam
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使用 TIARA 和 24Ne 放射性束通过 (d,p) 进行核子转移
DOI：
10.1088/0954-3899/31/10/049
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
D. Warner
中科院分区：
文献类型：
--
作者：
W. Catford;C. Timis;R. Lemmon;M. Labiche;N. Orr;L. Caballero;R. Chapman;M. Freer;M. Chartier;H. Savajols;M. Rejmund;N. Amzal;N. Ashwood;T. Baldwin;M. Burns;N. Curtis;G. France;W. Gelletly;X. Liang;S. Pain;V. Pucknell;B. Rubio;O. Sorlin;K. Spohr;C. Thiesen;D. Warner
首次报道了利用TIARA阵列测量的物理结果。本文用GANIL的SPIRAL提供的~（24）Ne放射性束研究了~（24）Ne（d，p）~（25）Ne反应的逆运动学。TIARA非常紧凑，具有高的带电粒子几何覆盖率，并且是专门为研究逆运动学中的转移反应而设计的，具有放射性束。根据（d，p）微分截面，25 Ne的基态Jπ = 1/2+，最低激发态Jπ = 5/2+和3/2+分别在1.70和2.05（±0.05）MeV处确定。同时发生的伽马射线数据被证明是必不可少的，以解决这两个激发态。在3.30和4.05（±0.05）MeV观测到的强填充能级是负宇称态的候选者。微分截面的进一步分析正在进行中，目的是提高较高的躺状态的识别和确定绝对光谱因子。
The first physics results measured using the TIARA array are reported. The reaction 24Ne(d,p)25Ne has been studied in inverse kinematics with a radioactive beam of 24Ne provided by SPIRAL at GANIL. TIARA is very compact with a high geometrical coverage for charged particles, and is designed specifically for the study of transfer reactions in inverse kinematics, with radioactive beams. From the (d,p) differential cross sections, the ground state of 25Ne is assigned to have Jπ = 1/2+ and the lowest states with Jπ = 5/2+ and 3/2+ are tentatively identified at excitation energies of 1.70 and 2.05 (±0.05) MeV, respectively. Coincident gamma-ray data proved essential to resolve these two excited states. Strongly populated levels observed at 3.30 and 4.05 (±0.05) MeV are candidates for negative parity states. Further analysis of the differential cross sections is in progress, with the aim of improving the identification of the higher lying states and determining absolute spectroscopic factors.