η-nucleus bound states in nuclei

WANG Teng-Teng

doi:10.1088/1674-1137/34/4/008

Chinese Physics C> 2010, Vol. 34> Issue(4) : 460-464 DOI: 10.1088/1674-1137/34/4/008

η-nucleus bound states in nuclei

WANG Teng-Teng ^,

Institute of Theoretical Physics, College of Applied Sciences, Beijing University of Technology, Beijing 100124, China

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Abstract：
The binding energies ε_η and widths Γ_η of η-mesic nuclei are calculated. We parameterize the η self-energy in the nuclear medium as a function of energy and density. We find that the single-particle energies are sensitive to the scattering length, and increase monotonically with the nucleus. The key point for the study of η-nucleus bound states is the η-nuclear optical potential. We study the s-wave interactions of η mesons in a nuclear medium and obtain the optical potential U_η≈－72 MeV. Comparing our results with the previous results, we find that the ηN scattering length a_ηN is indeed important to the calculations. With increasing nuclear density the effective mass of the η meson decreases.

References

[1]

. Haider Q, LIU L C. Phys. Lett. B, 1986, 172: 2572. LIU L C, Haider Q. Phys. Rev. C, 1986, 34: 18453. Waas T, Weise W. Nucl. Phys. A, 1997, 625: 2874. Chiang H C, Oset E, LIU L C. Phys. Rev. C, 1991, 44: 7385. Tsushima K, LU D H, Thomas A W et al. Phys. Lett. B,1998, 443: 266. Inoue T, Oset E. Nucl. Phys. A, 2002, 710: 3547. Bhalerao R S, LIU L C. Phys. Rev. Lett., 1985, 54: 8658. Green A M, Wycech S. Phys. Rev. C, 1997, 55: R21679. Green A M, Wycech S. Phys. Rev. C, 1999, 60: 03520810. Bennhold C, Tanabe H. Nucl. Phys. A, 1991, 530: 62511. Arima M, Shimizu K, Yazaki K. Nucl. Phys. A, 1992, 543:61312. ZHONG Xian-Hui, LI Lei, NING Ping-Zhi et al. Phys. Rev.C, 2006, 73: 01520513. Haider Q, LIU L C. Phys. Rev. C, 2002, 66: 04520814. SONG Chun-Yan, ZHONG Xian-Hui, LI Lei et al. EPL,2008, 81: 4200215. CAI Chong-Hai, LI Lei. HEP NP, 2003, 27: 1005 (in Chinese)16. Sitenko A G, Tartakovskii V K. Lectures on the Theory ofthe Nucleus. Oxford: Pergamon Press, 1975. 8517. Green A M, Wycech S. Phys. Rev. C, 2005, 71: 01400118. Arndt R A, Briscoe W J, Morrison T W et al. Phys. Rev.C, 2005, 72: 045202

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

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WANG Teng-Teng. η-nucleus bound states in nuclei[J]. Chinese Physics C, 2010, 34(4): 460-464. doi: 10.1088/1674-1137/34/4/008

WANG Teng-Teng. η-nucleus bound states in nuclei[J]. Chinese Physics C, 2010, 34(4): 460-464. doi: 10.1088/1674-1137/34/4/008 shu

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Received: 2009-05-12
Revised: 2009-08-09

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沈阳化工大学材料科学与工程学院沈阳 110142

η-nucleus bound states in nuclei

Corresponding author: WANG Teng-Teng,

Institute of Theoretical Physics, College of Applied Sciences, Beijing University of Technology, Beijing 100124, China

Received Date: 2009-05-12

Accepted Date: 2009-08-09

Available Online: 2010-04-05

Abstract:

The binding energies ε_η and widths Γ_η of η-mesic nuclei are calculated. We parameterize the η self-energy in the nuclear medium as a function of energy and density. We find that the single-particle energies are sensitive to the scattering length, and increase monotonically with the nucleus. The key point for the study of η-nucleus bound states is the η-nuclear optical potential. We study the s-wave interactions of η mesons in a nuclear medium and obtain the optical potential U_η≈－72 MeV. Comparing our results with the previous results, we find that the ηN scattering length a_ηN is indeed important to the calculations. With increasing nuclear density the effective mass of the η meson decreases.

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η-nucleus bound states in nuclei

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