TY - JOUR
T1 - Three-body model calculations of N δ and δδ dibaryon resonances
AU - Gal, Avraham
AU - Garcilazo, Humberto
N1 - Publisher Copyright:
© 2014 Elsevier B.V.
PY - 2014/3/3
Y1 - 2014/3/3
N2 - Three-body hadronic models with separable pairwise interactions are formulated and solved to calculate resonance masses and widths of L=0 Nδ and δδ dibaryons using relativistic kinematics. For Nδ, I(JP)=1(2+) and 2(1+) resonances slightly below threshold are found by solving πNN Faddeev equations. For δδ, several resonances below threshold are found by solving πNδ Faddeev equations in which the Nδ interaction is dominated by the 1(2+) and 2(1+) resonating channels. The lowest δδ dibaryon resonances found are for I(JP)=0(3+) and 3(0+), the former agreeing well both in mass and in width with the relatively narrow D03(2370) resonance observed recently by the WASA@COSY Collaboration. Its spin-isospin symmetric partner D30 is predicted with mass around 2.4 GeV and width about 80 MeV.
AB - Three-body hadronic models with separable pairwise interactions are formulated and solved to calculate resonance masses and widths of L=0 Nδ and δδ dibaryons using relativistic kinematics. For Nδ, I(JP)=1(2+) and 2(1+) resonances slightly below threshold are found by solving πNN Faddeev equations. For δδ, several resonances below threshold are found by solving πNδ Faddeev equations in which the Nδ interaction is dominated by the 1(2+) and 2(1+) resonating channels. The lowest δδ dibaryon resonances found are for I(JP)=0(3+) and 3(0+), the former agreeing well both in mass and in width with the relatively narrow D03(2370) resonance observed recently by the WASA@COSY Collaboration. Its spin-isospin symmetric partner D30 is predicted with mass around 2.4 GeV and width about 80 MeV.
KW - Dibaryons
KW - Faddeev equations
KW - Nucleon-nucleon interactions
KW - Pion-baryon interactions
UR - http://www.scopus.com/inward/record.url?scp=84905562748&partnerID=8YFLogxK
U2 - 10.1016/j.nuclphysa.2014.02.019
DO - 10.1016/j.nuclphysa.2014.02.019
M3 - Artículo
SN - 0375-9474
VL - 928
SP - 73
EP - 88
JO - Nuclear Physics, Section A
JF - Nuclear Physics, Section A
ER -