Oddball Y(4140) as the molecular cousin of Y(3930)

LIU Xiang

doi:10.1088/1674-1137/34/9/055

Chinese Physics C> 2010, Vol. 34> Issue(9) : 1405-1407 DOI: 10.1088/1674-1137/34/9/055

Oddball Y(4140) as the molecular cousin of Y(3930)

LIU Xiang ^,

¹ School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China² Research Center for Hadron and CSR Physics, Lanzhou University & Institute of Modern Physics of CAS, Lanzhou 730000, China

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Abstract：
In my talk, we present the dynamical study of Y(4140) and Y(3930) under the D_s^*D_s^* and D^*D^* molecular assignments respectively. The importance to theoretically and experimentally study their open-charm decay, hidden-charm decay, radiative decay and double-photon decay is proposed combing with the theoretical calculation of the decay behavior of Y(4140) and Y(3930). According to the recent new experimental progress made by Belle, we further indicate the reasonability of molecular explanation to Y(4140). Another event cluster around 4270 MeV in the J/ψφ invariant mass spectrum of B→K J/ψφ can provide us more hints to reveal the creation mechanism of molecular structure in B meson decay, which will be helpful to clarify the underlying structure of Y(4140) and Y(3930).

References

[1]

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LIU Xiang. Oddball Y(4140) as the molecular cousin of Y(3930)[J]. Chinese Physics C, 2010, 34(9): 1405-1407. doi: 10.1088/1674-1137/34/9/055

LIU Xiang. Oddball Y(4140) as the molecular cousin of Y(3930)[J]. Chinese Physics C, 2010, 34(9): 1405-1407. doi: 10.1088/1674-1137/34/9/055 shu

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Received: 2010-02-09
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Oddball Y(4140) as the molecular cousin of Y(3930)

Corresponding author: LIU Xiang,

¹ School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China² Research Center for Hadron and CSR Physics, Lanzhou University & Institute of Modern Physics of CAS, Lanzhou 730000, China

Received Date: 2010-02-09

Accepted Date: 1900-01-01

Available Online: 2010-09-05

Abstract:

In my talk, we present the dynamical study of Y(4140) and Y(3930) under the D_s^*D_s^* and D^*D^* molecular assignments respectively. The importance to theoretically and experimentally study their open-charm decay, hidden-charm decay, radiative decay and double-photon decay is proposed combing with the theoretical calculation of the decay behavior of Y(4140) and Y(3930). According to the recent new experimental progress made by Belle, we further indicate the reasonability of molecular explanation to Y(4140). Another event cluster around 4270 MeV in the J/ψφ invariant mass spectrum of B→K J/ψφ can provide us more hints to reveal the creation mechanism of molecular structure in B meson decay, which will be helpful to clarify the underlying structure of Y(4140) and Y(3930).

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Oddball Y(4140) as the molecular cousin of Y(3930)

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