Chinese Physics C > 1991, Vol. 15 > Issue(S1): 43-50

The Possibility of Forming Bound State of η-Mesic Nucleus

1 Department of Physics, Guangxi Normal University, Guilin, Guangxi, China;
2 Institute of High Energy Physics, the Chinese Academy of Sciences, Beijing, China

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The formation of the bound state of the η-mesic-aucleus is investigated by the standard Green's function method used in the many-body problem. It is found that when parameters, coupling constants and harmonic oscillator potentials are chosen in the physical range, due to the attractive nature of the ηNN ^*(l/2, 1/2 ^-) interaction the η- ¹⁶O bound state can possibly be formed. However, detecting such a bound state would be difficult, because its width Γ is larger than the binding energy of ηin ¹⁶O _η.

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Liu Jifeng, Shen Jianping and Li Guanglie. The Possibility of Forming Bound State of η-Mesic Nucleus[J]. Chinese Physics C, 1991, 15(S1): 43-50.

Liu Jifeng, Shen Jianping and Li Guanglie. The Possibility of Forming Bound State of η-Mesic Nucleus[J]. Chinese Physics C, 1991, 15(S1): 43-50. shu

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Received: 1990-03-30

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Supported in part by the National Natural Science Foundation of China.

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沈阳化工大学材料科学与工程学院沈阳 110142

The Possibility of Forming Bound State of η-Mesic Nucleus

1 Department of Physics, Guangxi Normal University, Guilin, Guangxi, China;
2 Institute of High Energy Physics, the Chinese Academy of Sciences, Beijing, China

Received Date:1990-03-30

Fund Project:Supported in part by the National Natural Science Foundation of China.

Abstract:The formation of the bound state of theη-mesic-aucleus is investigated by the standard Green's function method used in the many-body problem. It is found that when parameters, coupling constants and harmonic oscillator potentials are chosen in the physical range, due to the attractive nature of theηNN^*(l/2, 1/2^-) interaction theη-¹⁶O bound state can possibly be formed. However, detecting such a bound state would be difficult, because its width Γ is larger than the binding energy ofηin¹⁶O_η.