Chinese Physics C > 1990, Vol. 14 > Issue(12): 1096-1102

POSSIBILITY ON FORMATION OF η-MESON NUCLEUS BOUND STATES

Dept. of Physics,Guangxi Normal University,GuilinInstitute of High Energy Physics,Academia Sinica,Beijing

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Abstract：
The formation of η-meson-nucleus bound states is investigated,using a standard Green's function of many-body problems.Within physically reasonable range of the parameters (coupling constants and harmonic oscillator potentials),we find that the η- ¹⁶O bound state is indeed possible and depends crucially on the ηNN ^*(1/2,1－/2) interaction being attractive.Our results indicate that the widths Γ are larger than the η binding energy in ¹⁶O _η,which would make the observation of such states defficult.

References

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LIU Ji-Feng, SHEN Jian-Ping and LI Guang-Lie. POSSIBILITY ON FORMATION OF η-MESON NUCLEUS BOUND STATES[J]. Chinese Physics C, 1990, 14(12): 1096-1102.

LIU Ji-Feng, SHEN Jian-Ping and LI Guang-Lie. POSSIBILITY ON FORMATION OF η-MESON NUCLEUS BOUND STATES[J]. Chinese Physics C, 1990, 14(12): 1096-1102. shu

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Received: 1900-01-01
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

POSSIBILITY ON FORMATION OF η-MESON NUCLEUS BOUND STATES

Corresponding author:LIU Ji-Feng,

Dept. of Physics,Guangxi Normal University,GuilinInstitute of High Energy Physics,Academia Sinica,Beijing

Received Date:1900-01-01
Accepted Date:1900-01-01
Available Online:1990-12-05

Abstract:The formation of η-meson-nucleus bound states is investigated,using a standard Green's function of many-body problems.Within physically reasonable range of the parameters (coupling constants and harmonic oscillator potentials),we find that the η-¹⁶O bound state is indeed possible and depends crucially on the ηNN^*(1/2,1－/2) interaction being attractive.Our results indicate that the widths Γ are larger than the η binding energy in¹⁶O_η,which would make the observation of such states defficult.