JP assignments of Λc+ baryons

CHEN Bing; WANG Deng-Xia; ZHANG Ai-Lin

doi:10.1088/1674-1137/33/12/047

Chinese Physics C> 2009, Vol. 33> Issue(12) : 1327-1330 DOI: 10.1088/1674-1137/33/12/047

J^P assignments of Λ_c⁺ baryons

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Abstract：
The ``good" diquark is employed to study Λ_c⁺ baryons within a mass loaded flux tube model. The study indicates that all Λ_c⁺ baryons candidates in the 2008 review by the Particle Data Group (PDG) are well described in the mass loaded flux model. The quantum numbers J^P of these Λ_c⁺ candidates are assigned. If Λ_c(2765)⁺ is an orbitally excited Λ_c⁺, it is likely the J^P=3/2⁺ one. If Λ_c(2765)⁺ is an orbitally excited Σ_c, there ought to be another J^P=3/2⁺ Λ_c⁺ with mass ≈2770 MeV. In the model, there exists no J^P=1/2⁺ Λ_c⁺(≈2700) predicted in existing literature. Λ_c(2940)⁺ is very possible the orbitally excited baryon with J^P=5/2^－.

References

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CHEN Bing, WANG Deng-Xia and ZHANG Ai-Lin. J^P assignments of Λ_c⁺ baryons[J]. Chinese Physics C, 2009, 33(12): 1327-1330. doi: 10.1088/1674-1137/33/12/047

CHEN Bing, WANG Deng-Xia and ZHANG Ai-Lin. J^P assignments of Λ_c⁺ baryons[J]. Chinese Physics C, 2009, 33(12): 1327-1330. doi: 10.1088/1674-1137/33/12/047 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

J^P assignments of Λ_c⁺ baryons

Corresponding author: CHEN Bing,

Received Date: 2009-08-07

Accepted Date: 1900-01-01

Available Online: 2009-12-05

Abstract:

The ``good" diquark is employed to study Λ_c⁺ baryons within a mass loaded flux tube model. The study indicates that all Λ_c⁺ baryons candidates in the 2008 review by the Particle Data Group (PDG) are well described in the mass loaded flux model. The quantum numbers J^P of these Λ_c⁺ candidates are assigned. If Λ_c(2765)⁺ is an orbitally excited Λ_c⁺, it is likely the J^P=3/2⁺ one. If Λ_c(2765)⁺ is an orbitally excited Σ_c, there ought to be another J^P=3/2⁺ Λ_c⁺ with mass ≈2770 MeV. In the model, there exists no J^P=1/2⁺ Λ_c⁺(≈2700) predicted in existing literature. Λ_c(2940)⁺ is very possible the orbitally excited baryon with J^P=5/2^－.

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J^P assignments of Λ_c⁺ baryons

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