A new N<SUP>*</SUP> resonance as a hadronic molecular state

Daisuke Jido; Yoshiko Kanada-En'yo

doi:10.1088/1674-1137/33/12/044

Chinese Physics C> 2009, Vol. 33> Issue(12) : 1312-1317 DOI: 10.1088/1674-1137/33/12/044

A new N^* resonance as a hadronic molecular state

Daisuke Jido ^, ,
Yoshiko Kanada-En'yo

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Abstract：
We report our recent work on a hadronic molecule state of the KKN system with I=1/2 and J^P=1/2⁺. We assume that the Λ(1405) resonance and the scalar mesons, f₀(980), a₀(980), are reproduced as quasi-bound states of KN and KK, respectively. Performing non-relativistic three-body calculations with a variational method for this system, we find a quasibound state of the KKN system around 1910 MeV below the three-body breakup threshold. This state corresponds to a new baryon resonance of N^* with J^P=1/2⁺. We find also that this resonance has the cluster structure of the two-body bound states keeping their properties as in the isolated two-particle systems. We also briefly discuss another hadronic molecular state composed by two K and one N, which corresponds to a Ξ^* resonance.

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Daisuke Jido and Yoshiko Kanada-En'yo. A new N^* resonance as a hadronic molecular state[J]. Chinese Physics C, 2009, 33(12): 1312-1317. doi: 10.1088/1674-1137/33/12/044

Daisuke Jido and Yoshiko Kanada-En'yo. A new N^* resonance as a hadronic molecular state[J]. Chinese Physics C, 2009, 33(12): 1312-1317. doi: 10.1088/1674-1137/33/12/044 shu

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Received: 2009-08-07
Revised: 1900-01-01

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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

A new N^* resonance as a hadronic molecular state

Corresponding author: Daisuke Jido,

Received Date: 2009-08-07

Accepted Date: 1900-01-01

Available Online: 2009-12-05

Abstract:

We report our recent work on a hadronic molecule state of the KKN system with I=1/2 and J^P=1/2⁺. We assume that the Λ(1405) resonance and the scalar mesons, f₀(980), a₀(980), are reproduced as quasi-bound states of KN and KK, respectively. Performing non-relativistic three-body calculations with a variational method for this system, we find a quasibound state of the KKN system around 1910 MeV below the three-body breakup threshold. This state corresponds to a new baryon resonance of N^* with J^P=1/2⁺. We find also that this resonance has the cluster structure of the two-body bound states keeping their properties as in the isolated two-particle systems. We also briefly discuss another hadronic molecular state composed by two K and one N, which corresponds to a Ξ^* resonance.

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A new N^* resonance as a hadronic molecular state

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A new N^* resonance as a hadronic molecular state

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A new N* resonance as a hadronic molecular state

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A new N* resonance as a hadronic molecular state

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A new N^* resonance as a hadronic molecular state

A new N^* resonance as a hadronic molecular state