最近有证据表明存在一个质量为2380 MeV/c^2、宽度为70 MeV/c^2的二重子，它强烈地衰变到d π 0 π 0通道中[M. Bashkanov等人，Phys.Rev.Lett. 102（2009）052301; P. Adlarson等人，arXiv：1104.0123]。利用末态相互作用理论，以弱模型依赖的方式估计了这种假设的二重子进入{pn}_{I=0} pi 0 pi 0通道的衰变率.它示出，如果共振存在，那么它应该出现在这个通道中的d π 0 π 0一样强烈。在2380 MeV/c^2区域的相关分波中，两种衰减模式的总和将使大部分预测的非弹性饱和。
英文摘要：
Evidence has recently been presented for the existence of a dibaryon of mass 2380 MeV/c^2 and width 70 MeV/c^2, which decays strongly into the d pi0 pi0 channel [M. Bashkanov et al., Phys.Rev.Lett. 102 (2009) 052301; P. Adlarson et al., arXiv:1104.0123]. The decay rate of such a hypothesised dibaryon into the {pn}_{I=0} pi0 pi0 channel is estimated in a weakly model-dependent way by using final state interaction theory. It is shown that, if the resonance exists, it should then show up as strongly in this channel as in d pi0 pi0. The sum of the two decay modes would saturate most of the inelasticity predicted in the relevant partial waves in the 2380 MeV/c^2 region.
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