Charmonium dissociation in collisions with &phi; mesons in hadronic matter

Shi-Tao Ji; Xiao-Ming Xu

doi:10.1088/1674-1137/41/2/024101

Chinese Physics C> 2017, Vol. 41> Issue(2) : 024101 DOI: 10.1088/1674-1137/41/2/024101

Charmonium dissociation in collisions with φ mesons in hadronic matter

Shi-Tao Ji ^, ,
Xiao-Ming Xu

1.
Department of Physics, Shanghai University, Baoshan, Shanghai 200444, China

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Abstract：
The φ-charmonium dissociation reactions in hadronic matter are studied. Unpolarised cross sections for φJ/ψ→D_s^- D_s⁺, φJ/ψ→D_s^*- D_s⁺ or D_s^- D_s^*+, φJ/ψ→D_s^*- D_s^*+, φψ'→D_s^- D_s⁺, φψ'→D_s^*- D_s⁺ or D_s^- D_s^*+, φψ'→D_s^*- D_s^*+, φχ_c→D_s^- D_s⁺, φχ_c→D_s^*- D_s⁺ or D_s^- D_s^*+ and φχ_c→D_s^*- D_s^*+ are calculated in the Born approximation, in the quark-interchange mechanism and with a temperature-dependent quark potential. The potential leads to remarkable temperature dependence of the cross sections. With the cross sections and the φ distribution function we calculate the dissociation rates of the charmonia in interactions with the φ meson in hadronic matter. The dependence of the rates on temperature and charmonium momentum is relevant to the influence of φ mesons on charmonium suppression.
- charmonium dissociation cross sections ,
- quark-interchange mechanism ,
- dissociation rate

References

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Shi-Tao Ji and Xiao-Ming Xu. Charmonium dissociation in collisions with φ mesons in hadronic matter[J]. Chinese Physics C, 2017, 41(2): 024101. doi: 10.1088/1674-1137/41/2/024101

Shi-Tao Ji and Xiao-Ming Xu. Charmonium dissociation in collisions with φ mesons in hadronic matter[J]. Chinese Physics C, 2017, 41(2): 024101. doi: 10.1088/1674-1137/41/2/024101 shu

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Received: 2016-07-19
Revised: 2016-10-09

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Supported by National Natural Science Foundation of China (11175111)

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Charmonium dissociation in collisions with φ mesons in hadronic matter

Corresponding author: Shi-Tao Ji,

1. Department of Physics, Shanghai University, Baoshan, Shanghai 200444, China

Received Date: 2016-07-19

Accepted Date: 2016-10-09

Available Online: 2017-02-05

Fund Project: Supported by National Natural Science Foundation of China (11175111)

Abstract: The φ-charmonium dissociation reactions in hadronic matter are studied. Unpolarised cross sections for φJ/ψ→D_s^- D_s⁺, φJ/ψ→D_s^*- D_s⁺ or D_s^- D_s^*+, φJ/ψ→D_s^*- D_s^*+, φψ'→D_s^- D_s⁺, φψ'→D_s^*- D_s⁺ or D_s^- D_s^*+, φψ'→D_s^*- D_s^*+, φχ_c→D_s^- D_s⁺, φχ_c→D_s^*- D_s⁺ or D_s^- D_s^*+ and φχ_c→D_s^*- D_s^*+ are calculated in the Born approximation, in the quark-interchange mechanism and with a temperature-dependent quark potential. The potential leads to remarkable temperature dependence of the cross sections. With the cross sections and the φ distribution function we calculate the dissociation rates of the charmonia in interactions with the φ meson in hadronic matter. The dependence of the rates on temperature and charmonium momentum is relevant to the influence of φ mesons on charmonium suppression.

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Charmonium dissociation in collisions with φ mesons in hadronic matter

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Charmonium dissociation in collisions with φ mesons in hadronic matter

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