Estimation of the ratio of the pn -> pn pi0 pi0/pn -> d pi0 pi0 cross sections

Details Estimation of the ratio of the pn -> pn pi0 pi0/pn -> d pi0 pi0 cross sections Estimation of the ratio of the pn -> pn pi0 pi0/pn -> d pi0 pi0 cross sections

2011-05-20

arxiv.org/abs/1105.4142v1

Physics

Nuclear Physics

Nuclear Theory

Four pages plus three postscript figures

Scientific paper

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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