Formation of heavy-meson bound states by two-nucleon pick-up reactions
Formation of heavy-meson bound states by two-nucleon pick-up reactions
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通过双核拾取反应形成重介子束缚态
DOI：
10.1103/physrevc.84.054609
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发表时间：
2011
影响因子：
3.1
通讯作者：
S.Hirenzaki
中科院分区：
文献类型：
--
作者：
N.Ikeno;J.Yamagata-Sekihara;H.Nagahiro;D.Jido;S.Hirenzaki
本文发展了一个计算双核子拾取反应中重介子核形成速率的模型，并将其应用于Li靶形成重介子束缚态的例子。在这个模型中，假设靶核中存在准边介子。结果表明，在两核子拾取反应中，即使是比核子重的介子，在无反冲运动学中也有可能形成介子核。我们发现，在无反冲运动学下，介子束缚态的形成率可以达到基本截面的一半左右。
We develop a model to evaluate the formation rate of the heavy mesic nuclei in two-nucleon pick-up reactions and apply it to theLi target cases for the formation of heavy meson–bound states, as examples. The existence of the quasideuteron in the target nucleus is assumed in this model. It is found that mesic nuclei formation in recoilless kinematics is possible even for heavier mesons than the nucleon in two-nucleon pick-up reactions. We find the formation rate of the meson-bound states can be around half of the elementary cross sections at the recoilless kinematics with small distortions.