TY  - JOUR
AU  - Albaladejo, M.
AU  - Oset, E.
PY  - 2013
DA  - 2013//
TI  - 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
T2  - Phys. Rev. C
JO  - Physical Review C
SP  - 014006
EP  - 6pp
VL  - 88
IS  - 1
PB  - Amer Physical Soc
AB  - 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.
SN  - 0556-2813
UR  - http://arxiv.org/abs/1304.7698
UR  - https://doi.org/10.1103/PhysRevC.88.014006
DO  - 10.1103/PhysRevC.88.014006
LA  - English
N1  - WOS:000322531400001
ID  - Albaladejo+Oset2013
ER  -