Di-Ω (ΩΩ)Jπ=0+ production cross section calculation
Abstract
Cross sections of baryon+baryon-->(ΩΩ)Jπ=0++X are studied using an effective Hamiltonian method. For low energy region, the γ production process dominates; its cross sections are of order of 0.3-1.6 μb for pΩ=100-400 MeV. There are also some strong interaction processes for forming di-Ω such as Ω+Ω-->(ΩΩ)0++η(η',φ) and Ω+Ξ-->(ΩΩ)0++K(K*). But these processes only make contributions in the high momentum region, because their threshold energies are around (or greater than) 1 GeV. The cross sections for the pseudoscalar meson production processes are about 2.0-4.5 μb, and for the vector meson production processes the cross sections are one order larger than those of the pseudoscalar meson production cases. Besides the above processes, a two-step process is also discussed, in which the first step is Ω+N-->(NΩ)Jπ=2++π (or γ) and the second step is Ω+(NΩ)2+-->(ΩΩ)0++N. The result shows that the cross sections are quite large for both steps. It seems that some two-step processes might also be important.
- Publication:
-
Physical Review C
- Pub Date:
- July 2002
- DOI:
- 10.1103/PhysRevC.66.015205
- Bibcode:
- 2002PhRvC..66a5205Y
- Keywords:
-
- 14.20.Pt;
- 12.39.-x;
- 13.40.-f;
- 24.85.+p;
- Dibaryons;
- Phenomenological quark models;
- Electromagnetic processes and properties;
- Quarks gluons and QCD in nuclei and nuclear processes