Vector meson rescattering effect in understanding the threshold enhancement observed in J/ψ→γpp

LIU Xiao-Hai; ZHANG Yuan-Jiang; ZHAO Qiang

doi:10.1088/1674-1137/34/9/054

Chinese Physics C> 2010, Vol. 34> Issue(9) : 1402-1404 DOI: 10.1088/1674-1137/34/9/054

Vector meson rescattering effect in understanding the threshold enhancement observed in J/ψ→γpp

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Abstract：
We propose one possible mechanism, i.e., the vector meson (VV) rescattering effects, to interpret the near threshold narrow enhancement observed in J/ψ→γpp. The estimate indicates that these effects can give sizeable contributions to this channel, and a destructive interference between different rescattering amplitudes is required to reproduce the line shape of the data.

References

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LIU Xiao-Hai, ZHANG Yuan-Jiang and ZHAO Qiang. Vector meson rescattering effect in understanding the threshold enhancement observed in J/ψ→γpp[J]. Chinese Physics C, 2010, 34(9): 1402-1404. doi: 10.1088/1674-1137/34/9/054

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Received: 2010-01-27
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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

Vector meson rescattering effect in understanding the threshold enhancement observed in J/ψ→γpp

Corresponding author: ZHAO Qiang,

Received Date: 2010-01-27

Accepted Date: 1900-01-01

Available Online: 2010-09-05

Abstract:

We propose one possible mechanism, i.e., the vector meson (VV) rescattering effects, to interpret the near threshold narrow enhancement observed in J/ψ→γpp. The estimate indicates that these effects can give sizeable contributions to this channel, and a destructive interference between different rescattering amplitudes is required to reproduce the line shape of the data.

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Vector meson rescattering effect in understanding the threshold enhancement observed in J/ψ→γpp

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