Could the New Absorption Cross Section of J/ψ Change the Aspect of Nuclear Absorption Mechanism

SA Ben-Hao; LU Zhong-Dao; SU Zong-Di

Chinese Physics C> 2001, Vol. 25> Issue(6) : 544-548

Could the New Absorption Cross Section of J/ψ Change the Aspect of Nuclear Absorption Mechanism

China Institute of Atomic Energy, Beijing 102413, China2 Center of Theoreticol Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China

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Abstract：
The enlarged new absorption cross sections of J/ψ by π and ρ were put into the hadron and string cascade model, JPCIAE, and the J/ψ suppression factors in P-A, O-U, S-U and Pb-Pb minimum bias collisions at 200A GeV/c were calculated with nuclear absorption mechanism only. The results seem to indicate that, with new enlarged cross section it is still hard to change the aspect that nuclear absorption mechanism itself could not easily account for the J/ψ anomalous suppression in Pb-Pb collisions.

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[1]

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SA Ben-Hao, LU Zhong-Dao and SU Zong-Di. Could the New Absorption Cross Section of J/ψ Change the Aspect of Nuclear Absorption Mechanism[J]. Chinese Physics C, 2001, 25(6): 544-548.

SA Ben-Hao, LU Zhong-Dao and SU Zong-Di. Could the New Absorption Cross Section of J/ψ Change the Aspect of Nuclear Absorption Mechanism[J]. Chinese Physics C, 2001, 25(6): 544-548. shu

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Received: 2000-07-12
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

Could the New Absorption Cross Section of J/ψ Change the Aspect of Nuclear Absorption Mechanism

Corresponding author: SA Ben-Hao,

China Institute of Atomic Energy, Beijing 102413, China2 Center of Theoreticol Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China

Received Date: 2000-07-12

Accepted Date: 1900-01-01

Available Online: 2001-06-05

Abstract: The enlarged new absorption cross sections of J/ψ by π and ρ were put into the hadron and string cascade model, JPCIAE, and the J/ψ suppression factors in P-A, O-U, S-U and Pb-Pb minimum bias collisions at 200A GeV/c were calculated with nuclear absorption mechanism only. The results seem to indicate that, with new enlarged cross section it is still hard to change the aspect that nuclear absorption mechanism itself could not easily account for the J/ψ anomalous suppression in Pb-Pb collisions.

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Could the New Absorption Cross Section of J/ψ Change the Aspect of Nuclear Absorption Mechanism

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