Phase shifts and inelasticity parameters for NN scattering in the partial-wave channels \({}^3S_1\)–\({}^3D_1\) and \({}^1S_0\) at energies \(T_\mathrm{lab}\) from zero to about 1 GeV are described within a unified NN potential model assuming the formation of isoscalar and isovector dibaryon resonances near the \(NN^*(1440)\) threshold. Evidence for these near-threshold resonances is actually found in the recent WASA experiments on single- and double-pion production in NN collisions. There, the excitation of the Roper resonance \(N^*(1440)\) exhibits a structure in the energy dependence of the total cross section which corresponds to the formation of dibaryon states with \(I(J^\pi )=0(1^+)\) and \(1(0^+)\) at the \(NN^*(1440)\) threshold. These two S-wave dibaryon resonances may provide new insight into the nature of the strong NN interaction at low and intermediate energies.

在部分波通道\（{} ^ 3S_1 \） – \（{} ^ 3D_1 \）和\（{} ^ 1S_0 \）在能量\（T_ \ mathrm {lab}下，NN散射的相移和非弹性参数\）从零至约1电子伏特的一个统一的内描述的NN势模型假设位旋标量和矢量双重子共振的附近形成\（NN ^ *（1440）\）的阈值。这些近阈值共振的证据实际上是在最近的WASA关于NN碰撞中单和双偶子产生的实验中找到的。在那里，罗珀共振\（N ^ *（1440）\）的激发在总截面的能量依赖性中表现出一种结构，该结构对应于具有\（I（J ^ \ pi）= 0（1 ^ +）\）和\（1（0 ^ +）\）的重子态的形成处于\（NN ^ *（1440）\）阈值。这两个S波二重子共振可能为中低能级的强NN相互作用的性质提供新的见解。