POSSIBILITY ON FORMATION OF η-MESON NUCLEUS BOUND STATES

LIU Ji-Feng; SHEN Jian-Ping; LI Guang-Lie

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2024年10月30日

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

[1]

J. C. Peng, Hadronic Probes and Nuclear Interactions, AIP Conf. Proc,No. 133 (AIP. New York. 1985).p.255.[2] R. s. Bhalerao and L. C. Liu. Phys. Rev. Lett, 54(1985),865.[3]Q.Haider and L. C. Liu, phys,lett., B172(1986), 257; phys, Rev., C34(1986), 1845.[4]S. S. Wu and T. T. S. Kuo, Nucl phys., A430(1984),110.[5]G. L. Li, K. K. Ng and T. T.S. Kuo. phys Rev., C25(1982), 2877.[6]K. Hllinde, phys. Rep., 68c(1981),121[7]particle Data Group, Rcview of Particle Properiles. phys.lett., B170(1986). 31.[8]R. Brockmann et al., Quark dynamics at intermcdiate energies, Internal Report, Regensburg(1981).[9]J. M. Biatt, J. comput, phys., 1(1967),382.[10]T. T. S. Kuo, J. Shurpin, K. C.Tam, E. Osnes and P.J. Ellis, Ann, phys., (NY), 132(1981),237.[11]H. C. Chiang, E. Oset, to be published.

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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 in ¹⁶O_η,which would make the observation of such states defficult.