Date:
Tue, 01/04/201414:00-15:15
Location:
Racah Institute of Physics, Moadon (Bitan 9)
"Pion-assisted Nucleon-Delta and Delta-Delta dibaryons":
Three-body hadronic models are formulated and solved to calculate resonance masses and widths of L=0 Nucleon-Delta and Delta-Delta dibaryons using relativistic kinematics. For Nucleon-Delta, I(JP)=1(2+) and 2(1+) resonances slightly below threshold are found by solving pi-N-N Faddeev equations.
For Delta-Delta, several resonances below threshold are found by solving pi-N-Delta Faddeev equations in which the N-Delta interaction is dominated by the 1(2+) and 2(1+) resonating channels. The lowest Delta-Delta dibaryon resonances found are for I(JP)=0(3+) and 3(0+), the former agreeing well both in mass as well as in width with the relatively narrow D_{03}(2370) resonance observed recently by the WASA-at-COSY Collaboration.
Three-body hadronic models are formulated and solved to calculate resonance masses and widths of L=0 Nucleon-Delta and Delta-Delta dibaryons using relativistic kinematics. For Nucleon-Delta, I(JP)=1(2+) and 2(1+) resonances slightly below threshold are found by solving pi-N-N Faddeev equations.
For Delta-Delta, several resonances below threshold are found by solving pi-N-Delta Faddeev equations in which the N-Delta interaction is dominated by the 1(2+) and 2(1+) resonating channels. The lowest Delta-Delta dibaryon resonances found are for I(JP)=0(3+) and 3(0+), the former agreeing well both in mass as well as in width with the relatively narrow D_{03}(2370) resonance observed recently by the WASA-at-COSY Collaboration.