Level Crossing of N*(1535)-hole and &eta; Modes and Partial Restoration of Chiral Symmetry in &eta;mesic Nuclei

H.Nagahiro; D.Jido; E.E.Kolomeitsev; S.Hirenzaki

doi:10.11804/NuclPhysRev.26.S1.100

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Volume 26 Issue S1

May 2020

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Article Navigation > Nuclear Physics Review > 2009 > 26(5): 100-103

H.Nagahiro, D.Jido, E.E.Kolomeitsev, S.Hirenzaki. Level Crossing of N*(1535)-hole and η Modes and Partial Restoration of Chiral Symmetry in ηmesic Nuclei[J]. Nuclear Physics Review, 2009, 26(5): 100-103. doi: 10.11804/NuclPhysRev.26.S1.100

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H.Nagahiro, D.Jido, E.E.Kolomeitsev, S.Hirenzaki. Level Crossing of N*(1535)-hole and η Modes and Partial Restoration of Chiral Symmetry in ηmesic Nuclei[J]. Nuclear Physics Review, 2009, 26(5): 100-103. doi: 10.11804/NuclPhysRev.26.S1.100

Level Crossing of N*(1535)-hole and η Modes and Partial Restoration of Chiral Symmetry in ηmesic Nuclei

doi: 10.11804/NuclPhysRev.26.S1.100

1 Research Center for Nuclear Physics(RCNP), Osaka University, Ibaraki, Osaka 5670047, Japan; 2 Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 6068502, Japan; 3 School of Physics and Astronomy, University of Minnesota, 116 Church Str SE, Minneapolis 55455, USA; 4 Gesellschaft für Schwerionenforschung (GSI), Planck Str. 1, 64291 Darmstadt, Germany; 5 Department of Physics, Nara Women’s University, Nara 6308506, Japan

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2020-05-11

Abstract

We investigate the properties of the ηnucleus interaction by postulating the N*(1535) dominance for ηN system. Since the mass gap of N* and N is very close to the η meson mass, there is the possibility of the level crossing between the N*h and η modes in finite density. We postulate the N*(1535) resonance for the ηN system and consider quite distinct N* properties in finite density which are predicted by two independent chiral models. We find that we can obtain clearer information on the inmedium N* properties and also on the ηnucleus interaction through the formation of the ηmesic nuclei by (π, N) reactions under the appropriate experimental conditions, which can be performed at existing and/or forthcoming facilities like JPARC.
- A etamesic nuclei,
- N*(1535) in medium,
- partial restoration of chiral symmetry
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Level Crossing of N*(1535)-hole and η Modes and Partial Restoration of Chiral Symmetry in ηmesic Nuclei

doi: 10.11804/NuclPhysRev.26.S1.100

1 Research Center for Nuclear Physics(RCNP), Osaka University, Ibaraki, Osaka 5670047, Japan; 2 Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 6068502, Japan; 3 School of Physics and Astronomy, University of Minnesota, 116 Church Str SE, Minneapolis 55455, USA; 4 Gesellschaft für Schwerionenforschung (GSI), Planck Str. 1, 64291 Darmstadt, Germany; 5 Department of Physics, Nara Women’s University, Nara 6308506, Japan

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2020-05-11

Key words:

Abstract: We investigate the properties of the ηnucleus interaction by postulating the N*(1535) dominance for ηN system. Since the mass gap of N* and N is very close to the η meson mass, there is the possibility of the level crossing between the N*h and η modes in finite density. We postulate the N*(1535) resonance for the ηN system and consider quite distinct N* properties in finite density which are predicted by two independent chiral models. We find that we can obtain clearer information on the inmedium N* properties and also on the ηnucleus interaction through the formation of the ηmesic nuclei by (π, N) reactions under the appropriate experimental conditions, which can be performed at existing and/or forthcoming facilities like JPARC.

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