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- W202495166 abstract "Cross sections of $mathrm{baryon}+mathrm{baryon}ensuremath{rightarrow}(ensuremath{Omega}ensuremath{Omega}{)}_{{J}^{ensuremath{pi}}{=0}^{+}}+X$ are studied using an effective Hamiltonian method. For low energy region, the ensuremath{gamma} production process dominates; its cross sections are of order of $0.3--1.6 ensuremath{mu}mathrm{b}$ for ${p}_{ensuremath{Omega}}=100--400 mathrm{MeV}.$ There are also some strong interaction processes for forming di-$ensuremath{Omega}$ such as $ensuremath{Omega}+stackrel{ensuremath{rightarrow}}{ensuremath{Omega}}(ensuremath{Omega}ensuremath{Omega}{)}_{{0}^{+}}+ensuremath{eta}({ensuremath{eta}}^{ensuremath{'}},ensuremath{varphi})$ and $ensuremath{Omega}+stackrel{ensuremath{rightarrow}}{ensuremath{Xi}}(ensuremath{Omega}ensuremath{Omega}{)}_{{0}^{+}}{+K(K}^{ensuremath{star}}).$ 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 $2.0--4.5 ensuremath{mu}mathrm{b},$ 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 $ensuremath{Omega}+stackrel{ensuremath{rightarrow}}{N}(Nensuremath{Omega}{)}_{{J}^{ensuremath{pi}}{=2}^{+}}+ensuremath{pi}$ (or $ensuremath{gamma})$ and the second step is $ensuremath{Omega}+(Nensuremath{Omega}{)}_{{2}^{+}}ensuremath{rightarrow}(ensuremath{Omega}ensuremath{Omega}{)}_{{0}^{+}}+N.$ The result shows that the cross sections are quite large for both steps. It seems that some two-step processes might also be important." @default.
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- W202495166 date "2002-07-17" @default.
- W202495166 modified "2023-09-26" @default.
- W202495166 title "Di-Ω(ΩΩ)Jπ=0+production cross section calculation" @default.
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- W202495166 doi "https://doi.org/10.1103/physrevc.66.015205" @default.
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