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Estimation of the ratio of the pn -> pn pi(0)pi(0)/pn -> d pi(0)pi(0) cross sections
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
2011 (English)In: Physics Letters B, ISSN 0370-2693, Vol. 701, no 5, 619-622 p.Article in journal (Refereed) Published
Abstract [en]

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 pi(0)pi(0) 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 pi(0)pi(0) 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 show up as strongly in this channel as in d pi(0)pi(0). 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.

Place, publisher, year, edition, pages
2011. Vol. 701, no 5, 619-622 p.
Keyword [en]
Dibaryon resonances, Final state interaction theory
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-158329DOI: 10.1016/j.physletb.2011.06.054ISI: 000293438100018OAI: oai:DiVA.org:uu-158329DiVA: diva2:438991
Available from: 2011-09-06 Created: 2011-09-06 Last updated: 2011-09-06Bibliographically approved

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