Chinese Physics C > 2004, Vol. 28 > Issue(9): 952-957

χ_cJSuppression Related to Dissociation Cross Sections by Nucleons

Institute of Particle Physics,Central China Normal University,Wuhan 430079,China2 Shanghai Institute for Nuclear Research,CAS,Shanghai 201800,China

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Abstract：
Nucleon-χ _cJdissociation cross sections obtained in the quark exchange mechanism are applied to study χ _cJsuppression in hadronic matter created in central Pb+Pb and S+Pb collisions.Thermal average of the product of the dissociation cross section and the relative velocity of nucleon and χ _cJis discussed.The survival probabilities of χ _cJin the central Pb+Pb and S+Pb collisions show that the suppression caused by the collisions with nucleons and antinucleons is appreciable.

References

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PENG Ru, XU Xiao-Ming, FENG You-Ceng and ZHOU Dai-Cui. χ _cJSuppression Related to Dissociation Cross Sections by Nucleons[J]. Chinese Physics C, 2004, 28(9): 952-957.

PENG Ru, XU Xiao-Ming, FENG You-Ceng and ZHOU Dai-Cui. χ _cJSuppression Related to Dissociation Cross Sections by Nucleons[J]. Chinese Physics C, 2004, 28(9): 952-957. shu

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Received: 2003-11-19
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

χ_cJSuppression Related to Dissociation Cross Sections by Nucleons

Corresponding author:PENG Ru,

Institute of Particle Physics,Central China Normal University,Wuhan 430079,China2 Shanghai Institute for Nuclear Research,CAS,Shanghai 201800,China

Received Date:2003-11-19
Accepted Date:1900-01-01
Available Online:2004-09-05

Abstract:Nucleon-χ_cJdissociation cross sections obtained in the quark exchange mechanism are applied to study χ_cJsuppression in hadronic matter created in central Pb+Pb and S+Pb collisions.Thermal average of the product of the dissociation cross section and the relative velocity of nucleon and χ_cJis discussed.The survival probabilities of χ_cJin the central Pb+Pb and S+Pb collisions show that the suppression caused by the collisions with nucleons and antinucleons is appreciable.