Measurement of the 2H(p,n) Breakup Reaction at 170MeV and the Three-Nucleon Force Effects
Measurement of the 2H(p,n) Breakup Reaction at 170MeV and the Three-Nucleon Force Effects
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170MeV 2H(p,n) 分解反应和三核子力效应的测量
DOI：
10.1007/s00601-014-0868-5
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
H.Sakaguchi et al.
中科院分区：
文献类型：
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作者：
Y.Maeda;A.Tamii;H.Sakaguchi et al.
核子-氘核散射态是研究核子三力效应的重要方法。为了研究中能区的3 NF效应，测量了170 MeV ~ 2 H（p，n）核碎裂反应的微分截面和矢量分析功率Δ Y。用170 MeV极化质子束注入氘代聚乙烯靶，用飞行时间法测量了散射中子能量。数据进行了比较与Faddeev计算的基础上现代核子-核子（NN）的力量和没有3 NF。关于微分截面，我们可以看到在散射中子能量较低的区域，计算值与实验值有很大的差异，这与250 MeV的2 H（p，p）碎裂反应的结果相似。
The effects of three nucleon force (3NF) have been actively studied via the nucleon–deuteron (Nd) scattering states. The differential cross sections and the vector analyzing powers Ayof the2H(p,n) inclusive breakup reaction at 170 MeV were measured for the study of 3NF effects in the intermediate energy region. The polarized proton beam of 170 MeV was injected to the deuterated polyethylene (CD2) target and the energy of scattered neutrons were measured by using TOF method. The data were compared with the Faddeev calculations based on modern nucleon–nucleon (NN) forces with and without the 3NF. Concerning the differential cross sections, we can see large discrepancies between the data and the calculations in the region of scattered neutron energies are low, which is similar to the results of the2H(p,p) inclusive breakup reaction at 250 MeV.