Hadron molecules

Thomas Gutsche; Tanja Branz; Amand Faessler; Ian Woo Lee; Valery E. Lyubovitskij

doi:10.1088/1674-1137/34/9/007

Chinese Physics C> 2010, Vol. 34> Issue(9) : 1185-1190 DOI: 10.1088/1674-1137/34/9/007

Hadron molecules

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Abstract：
We discuss a possible interpretation of the open charm mesons D_s0^*(2317), D_s1(2460) and the hidden charm mesons X(3872), Y(3940) and Y(4140) as hadron molecules. Using a phenomenological Lagrangian approach we review the strong and radiative decays of the D_s0^*(2317) and D_s1(2460) states. The X(3872) is assumed to consist dominantly of molecular hadronic components with an additional small admixture of a charmonium configuration. Determing the radiative (γJ/ψ and γψ(2s)) and strong (J/ψ 2π and J/ψ 3π) decay modes we show that the present experimental observation is consistent with the molecular structure assumption of the X(3872). Finally, we give evidence for molecular interpretations of the Y(3940) and Y(4140) related to the observed strong decay modes J/ψ+ω or J/ψ+φ, respectively.

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Thomas Gutsche, Tanja Branz, Amand Faessler, Ian Woo Lee and Valery E. Lyubovitskij. Hadron molecules[J]. Chinese Physics C, 2010, 34(9): 1185-1190. doi: 10.1088/1674-1137/34/9/007

Thomas Gutsche, Tanja Branz, Amand Faessler, Ian Woo Lee and Valery E. Lyubovitskij. Hadron molecules[J]. Chinese Physics C, 2010, 34(9): 1185-1190. doi: 10.1088/1674-1137/34/9/007 shu

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Received: 2010-03-04
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

Hadron molecules

Corresponding author: Thomas Gutsche,

Received Date: 2010-03-04

Accepted Date: 1900-01-01

Available Online: 2010-09-05

Abstract:

We discuss a possible interpretation of the open charm mesons D_s0^*(2317), D_s1(2460) and the hidden charm mesons X(3872), Y(3940) and Y(4140) as hadron molecules. Using a phenomenological Lagrangian approach we review the strong and radiative decays of the D_s0^*(2317) and D_s1(2460) states. The X(3872) is assumed to consist dominantly of molecular hadronic components with an additional small admixture of a charmonium configuration. Determing the radiative (γJ/ψ and γψ(2s)) and strong (J/ψ 2π and J/ψ 3π) decay modes we show that the present experimental observation is consistent with the molecular structure assumption of the X(3872). Finally, we give evidence for molecular interpretations of the Y(3940) and Y(4140) related to the observed strong decay modes J/ψ+ω or J/ψ+φ, respectively.

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Hadron molecules

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