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1.
Based on the measured transverse mass spectra ofπr-, K-, and p at the RHIC energy s()NN = 130 GeV,di-omega productions from baryon-baryon reactions in hadronic matter are studied. Results about the (ΩΩ)0+ numbershow that the deeply bound state (ΩΩ)o+ can be observed at RHIC energies. 相似文献
2.
提出了核双电荷交换反应的双重子共振态的反应机制,成功地解释了长期以来一直困惑着人们的共振区反应的角分布的实验结果.说明了共振区核双电荷交换反应是寻找双重子共振态的一个可能的途径. 相似文献
3.
4.
The cross sections of
Ω+Ω→(ΩΩ)Jπ=0++X
are studied by using an effective Hamiltonian method. The results
are σΩ+Ω→(ΩΩ)0++γ=0.03~0.16×10-29 cm2 for
pΩ=100~400 MeV, and
the cross sections of η production are about 10-28 cm2 for
pΩ > 880 MeV. 相似文献
5.
Resonating-group method has been applied to calculate the
ΩΩ (SIJ=-6,0,0) dibaryon state in the framework of the extended quark-delocalization color-screening model. The mass of the di-Ω is predicted to be about 45 MeV lower than the
Ω-Ω threshold. The effect of channel coupling due to the
tensor force and sensitivity to meson exchange short-range cutoff
radius, r0 have also been studied. 相似文献
6.
ZHANGZong-Ye YUYou-Wen DAILian-Rong 《理论物理通讯》2003,40(3):332-336
The structures of (ΩΩ)0 and ([1]Ω)1 are studied in the extended chiral SU(3) quark model in which vector meson exchanges are included. The effect from the vector meson fields is very similar to that from the one-gluon exchange (OGE) interaction. Both in the chiral SU(3) quark model and in the extended chiral SU(3) quark model,di-omega (ΩΩ)0 is always deeply bound, with over one hundred MeV binding energy, and ([1]Ω)1 ‘s binding energy is around 20 MeV. An analysis shows that the quark exchange effect plays a very important role for making di-omega (ΩΩ)0 deeply bound. 相似文献
7.
GAO Chong-Shou 《理论物理通讯》2003,40(8)
The exotic strange dibaryon particle (ΩΩ)0 with S = -6 can be produced in relativistic heavyioncollisions. The yields of this kind of exotic strange dibaryon particles can increase significantly soon as the formation ofQGP does exhibit after the collision. If there is no phase transition after the collision, the upper bound of the productionof this diomega can be estimated from the free hadronic gas model for nuclear matter. The relative yield ratio of diomegato deuteron is less than 0.000205, this means that if there is no QGP creation it is difficult to observe the production ofdiomega in relativistic heavy ion collisions. 相似文献
8.
Based on the measured transverse
mass spectra of π-,
K-, and
p
at the RHIC energy
(sNN)1/2=130 GeV, di-omega productions from
baryon-baryon reactions in hadronic matter are studied. Results about the
>(ΩΩ)0+ number show that the deeply bound state
>(ΩΩ)0+ can be observed at RHIC energies. 相似文献
9.
GAOChong-Shou 《理论物理通讯》2003,40(2):188-190
The exotic strange dibaryon particle (ΩΩ)0 with S = -6 can be produced in relativistic heavy ion collisions. The yields of this kind of exotic strange dibaryon particles can increase signitlcantly soon as the formation of QGP does exhibit after the collision. If there is no phase transition after the collision, the upper bound of the production of this diomega can be estimated from the free hadronic gas model for nuclear matter. The relative yield ratio of diomega to deuteron is less than 0.000205, this means that if there is no QGP creation it is difficult to observe the production of diomega in relativistic heavy ion collisions. 相似文献
10.