Low-energy D*+D01 scattering and the nature of resonance-like structure Z+(4430)

GONG Ming; CHEN Ying; MENG Guo-Zhan; HE Song; LI Gang; LIU Chuan; LIU Yu-Bin; MA Jian-Ping; MENG Xiang-Fei; NIU Zhi-Yuan; SHEN Yan; ZHANG Jian-Bo; ZHANG Yuan-Jiang; CLQCD collaboration

doi:10.1088/1674-1137/34/9/045

Chinese Physics C> 2010, Vol. 34> Issue(9) : 1372-1374 DOI: 10.1088/1674-1137/34/9/045

Low-energy D^*+D⁰₁ scattering and the nature of resonance-like structure Z⁺(4430)

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Abstract：
Low-energy scattering of D^*+ and D⁰₁ meson is studied using quenched lattice QCD with improved lattice actions on anisotropic lattices. The threshold scattering parameters, namely the scattering length a₀ and the effective range r₀, for the s-wave scattering in J^P=0^－ channel are extracted: a₀=2.52(47) fm and r₀=0.7(1) fm. It is argued that, albeit the interaction between the two charmed mesons being attractive, it is unlikely that they can form a shallow bound state in this channel. Our calculation provides some useful information on the nature of the newly discovered resonance-like structure Z⁺(4430) by the Belle Collaboration.

References

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GONG Ming, CHEN Ying, MENG Guo-Zhan, HE Song, LI Gang, LIU Chuan, LIU Yu-Bin, MA Jian-Ping, MENG Xiang-Fei, NIU Zhi-Yuan, SHEN Yan, ZHANG Jian-Bo, ZHANG Yuan-Jiang and CLQCD collaboration. Low-energy D^*+D⁰₁ scattering and the nature of resonance-like structure Z⁺(4430)[J]. Chinese Physics C, 2010, 34(9): 1372-1374. doi: 10.1088/1674-1137/34/9/045

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Received: 2010-03-04
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通讯作者: 陈斌, [email protected]

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沈阳化工大学材料科学与工程学院沈阳 110142

Low-energy D^*+D⁰₁ scattering and the nature of resonance-like structure Z⁺(4430)

Corresponding author: GONG Ming,

Received Date: 2010-03-04

Accepted Date: 1900-01-01

Available Online: 2010-09-05

Abstract: Low-energy scattering of D^*+ and D⁰₁ meson is studied using quenched lattice QCD with improved lattice actions on anisotropic lattices. The threshold scattering parameters, namely the scattering length a₀ and the effective range r₀, for the s-wave scattering in J^P=0^－ channel are extracted: a₀=2.52(47) fm and r₀=0.7(1) fm. It is argued that, albeit the interaction between the two charmed mesons being attractive, it is unlikely that they can form a shallow bound state in this channel. Our calculation provides some useful information on the nature of the newly discovered resonance-like structure Z⁺(4430) by the Belle Collaboration.

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Low-energy D^*+D⁰₁ scattering and the nature of resonance-like structure Z⁺(4430)

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通讯作者: 陈斌, [email protected]

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Low-energy D^*+D⁰₁ scattering and the nature of resonance-like structure Z⁺(4430)

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