FNUSAL - 3/96 Mass and width of the d′ resonance in nuclei
نویسندگان
چکیده
We calculated the mass and width of the d′ resonance inside nuclei within a nucleon-∆ model by including the self-energy of the ∆ in the N∆ propagator. We found that in the nuclear medium the width of the d′ is increased by one order of magnitude while its mass changes only by a few MeV. This broadening of the width of the d′ resonance embedded in nuclei is consistent with the experimental observations so that the d′ can be understood as a N∆ resonance. Thus, given the freedom between either isospin 0 or isospin 2 for the d′, our results give weigth to the isospin-2 assignment. 14.20.Gk, 14.20.Pt, 13.75.Gx Typeset using REVTEX ∗On leave from Escuela Superior de F́ısica y Matemáticas, Instituto Politécnico Nacional, Edificio 9, 07738 México D.F., Mexico
منابع مشابه
Mass and width of the d' resonance in nuclei.
We calculated the mass and width of the d ′ resonance inside nuclei within a nucleon-∆ model by including the self-energy of the ∆ in the N ∆ propagator. We found that in the nuclear medium the width of the d ′ is increased by one order of magnitude while its mass changes only by a few MeV. This broadening of the width of the d ′ resonance embedded in nuclei is consistent with the experimental ...
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