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Combined analysis of the pn -> d pi(+)pi(-) and pn -> pn pi(+)pi(-) cross sections and implications for the interpretation of the pn -> d pi(+)pi(-) data

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Combined analysis of the pn -> d pi(+)pi(-) and pn -> pn pi(+)pi(-) cross sections and implications for the interpretation of the pn -> d pi(+)pi(-) data

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dc.contributor.author Albaladejo Serrano, Miguel
dc.contributor.author Oset Báguena, Eulogio
dc.date.accessioned 2014-02-17T13:26:44Z
dc.date.available 2014-02-17T13:26:44Z
dc.date.issued 2013
dc.identifier.citation Albaladejo, M. Oset Báguena, Eulogio 2013 Combined analysis of the pn -> d pi(+)pi(-) and pn -> pn pi(+)pi(-) cross sections and implications for the interpretation of the pn -> d pi(+)pi(-) data Physical Review C 88 1 014006
dc.identifier.uri http://hdl.handle.net/10550/32989
dc.description.abstract We use recent data that show a narrow peak around root s = 2.37 GeV in the pn -> d pi(+)pi(-) cross section, with about double strength at the peak than in the analogous pn -> d pi(0)pi(0) reaction, and, assuming that it is due to the excitation of a dibaryon resonance, we evaluate the cross section for the pn -> pn pi(+)pi(-) reaction, with the final pn unbound but with the same quantum numbers as the deuteron. We use accurate techniques to determine the final state interaction in the case of the pn forming a deuteron or a positive energy state, which allow us to get the pn -> pn pi(+)pi(-) cross section with pn in I = 0 and S = 1, that turns out to be quite close or saturates the experimental pn -> pn pi(+)pi(-) total cross section around root s = 2.37 GeV, depending on the angular momentum assumed. This poses problems to the assumption of the dibaryon hypothesis, which could be rendered more restrictive with future precise data on the pn -> pn pi(+)pi(-) reaction.
dc.relation.ispartof Physical Review C, 2013, vol. 88, num. 1, p. 014006
dc.subject Física
dc.title Combined analysis of the pn -> d pi(+)pi(-) and pn -> pn pi(+)pi(-) cross sections and implications for the interpretation of the pn -> d pi(+)pi(-) data
dc.type journal article es_ES
dc.date.updated 2014-02-17T13:26:44Z
dc.identifier.doi 10.1103/PhysRevC.88.014006
dc.identifier.idgrec 091355
dc.rights.accessRights open access es_ES
dc.identifier.url 10.1103/PhysRevC.88.014006

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