标题： 寻找三核子共振 显示英文标题

标题： Searching for three-nucleon resonances

摘要： 我们寻找在He-3上的介子双电荷交换实验中预测的三中子共振。 所有部分波直到J=5/2都是非共振的，除了J=3/2^+的一个部分波，在E=14 MeV能量处发现了一个宽度为13 MeV的状态。 三质子系统中镜像态的参数为E=15 MeV和Gamma=14 MeV。 也讨论了在氚核中可能存在一个激发态，该激发态是从H(He-6,alpha)实验中预测的。 显示英文摘要

摘要： We search for three-neutron resonances which were predicted from pion double charge exchange experiments on He-3. All partial waves up to J=5/2 are nonresonant except the J=3/2^+ one, where we find a state at E=14 MeV energy with 13 MeV width. The parameters of the mirror state in the three-proton system are E=15 MeV and Gamma=14 MeV. The possible existence of an excited state in the triton, which was predicted from a H(He-6,alpha) experiment, is also discussed.