Mixing of scalar meson and baryon-baryon interaction

DAI Lian-Rong<SUP></SUP>

doi:10.1088/1674-1137/34/9/071

Chinese Physics C> 2010, Vol. 34> Issue(9) : 1459-1461 DOI: 10.1088/1674-1137/34/9/071

Mixing of scalar meson and baryon-baryon interaction

DAI Lian-Rong

Department of Physics, Liaoning Normal University, Dalian 116029, China

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Abstract：
At quark level, we study the effect of ideal mixing of singlet σ₀ and octet σ₈ scalar mesons on baryon-baryon interaction in the chiral SU(3) quark model. We solve the resonating group method equation for scattering process and bound state. The results show that the binding energy of deuteron and nucleon-nucleon and hyperon-nucleon scattering data can be reasonably described for ideal mixing. Taking the same parameters we used in the scattering calculation, we further investigate the possible dibaryons and find the binding energy of (ΩΩ)_ST=00 and (Ξ^*Ω)_{ST=0 1/2} can be reduced a lot for ideal mixing.

References

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DAI Lian-Rong. Mixing of scalar meson and baryon-baryon interaction[J]. Chinese Physics C, 2010, 34(9): 1459-1461. doi: 10.1088/1674-1137/34/9/071

DAI Lian-Rong. Mixing of scalar meson and baryon-baryon interaction[J]. Chinese Physics C, 2010, 34(9): 1459-1461. doi: 10.1088/1674-1137/34/9/071 shu

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Received: 2010-02-08
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Mixing of scalar meson and baryon-baryon interaction

Department of Physics, Liaoning Normal University, Dalian 116029, China

Received Date: 2010-02-08

Accepted Date: 1900-01-01

Available Online: 2010-09-05

Abstract:

At quark level, we study the effect of ideal mixing of singlet σ₀ and octet σ₈ scalar mesons on baryon-baryon interaction in the chiral SU(3) quark model. We solve the resonating group method equation for scattering process and bound state. The results show that the binding energy of deuteron and nucleon-nucleon and hyperon-nucleon scattering data can be reasonably described for ideal mixing. Taking the same parameters we used in the scattering calculation, we further investigate the possible dibaryons and find the binding energy of (ΩΩ)_ST=00 and (Ξ^*Ω)_{ST=0 1/2} can be reduced a lot for ideal mixing.

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Mixing of scalar meson and baryon-baryon interaction

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