Pionic atom spectroscopy in the (d, 3He) reaction at finite angles
Pionic atom spectroscopy in the (d, 3He) reaction at finite angles
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(d, 3He) 反应中有限角度的π原子光谱
DOI：
10.1140/epja/i2011-11161-9
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发表时间：
2012
影响因子：
2.7
通讯作者：
S.Hirenzaki
中科院分区：
文献类型：
--
作者：
N.Ikeno;H.Nagahiro;S.Hirenzaki
本文从理论上研究了（d，3He）反应中深束缚的π原子的形成，给出了有限角度下发射的3He能谱，并期望在实验上观察到这些能谱.我们发现，由于反应的匹配条件，在不同的散射角下，π介子束缚态和中子空穴态的不同组合支配着光谱。我们的结论是，在有限角度下对（d，3He）反应的观测将提供每个核中π介子束缚态的系统信息，并将有助于发展π介子性质的研究和核手征对称性的部分恢复。
We study the formation of deeply bound pionic atoms in the (d,3He) reactions theoretically and show the energy spectra of the emitted3He at finite angles, which are expected to be observed experimentally. We find that the different combinations of the pion-bound and neutron-hole states dominate the spectra at different scattering angles because of the matching condition of the reaction. We conclude that the observation of the (d,3He) reaction at finite angles will provide the systematic information of the pionic bound states in each nucleus and will help to develop the study of the pion properties and the partial restoration of chiral symmetry in nuclei.