Transverse momentum spectra in high-energy nucleus-nucleus, proton-nucleus and proton-proton collisions

XIE Wen-Jie

doi:10.1088/1674-1137/35/12/006

Chinese Physics C> 2011, Vol. 35> Issue(12) : 1111-1119 DOI: 10.1088/1674-1137/35/12/006

Transverse momentum spectra in high-energy nucleus-nucleus, proton-nucleus and proton-proton collisions

XIE Wen-Jie ^,

Department of Physics, Yuncheng University, Yuncheng 044000, China

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Abstract：
The transverse momentum distributions of final-state particles produced in nucleus-nucleus (AA), proton-nucleus (pA), and proton-proton (pp) collisions at high energies are investigated using a multisource ideal gas model. Our calculated results show that the contribution of hard emission can be neglected in the study of transverse momentum spectra of charged pions and kaons produced in Cu-Cu collisions at √s_NN=22.5 GeV. And if we consider the contribution of hard emission, the transverse momentum spectra of p and p produced in Cu-Cu collisions at √s_NN=22.5 GeV, K_s⁰ produced in Pb-Pb collisions at 158 A GeV, J/ψ particles produced in p-Pb collisions at 400 GeV and π⁺ , K⁺, p produced in proton-proton collisions at √s=200 GeV, can be described by the model, especially in the tail part of spectra.

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XIE Wen-Jie. Transverse momentum spectra in high-energy nucleus-nucleus, proton-nucleus and proton-proton collisions[J]. Chinese Physics C, 2011, 35(12): 1111-1119. doi: 10.1088/1674-1137/35/12/006

XIE Wen-Jie. Transverse momentum spectra in high-energy nucleus-nucleus, proton-nucleus and proton-proton collisions[J]. Chinese Physics C, 2011, 35(12): 1111-1119. doi: 10.1088/1674-1137/35/12/006 shu

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Received: 2011-03-06
Revised: 2011-05-24

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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

Transverse momentum spectra in high-energy nucleus-nucleus, proton-nucleus and proton-proton collisions

Corresponding author: XIE Wen-Jie,

Department of Physics, Yuncheng University, Yuncheng 044000, China

Received Date: 2011-03-06

Accepted Date: 2011-05-24

Available Online: 2011-12-05

Abstract: The transverse momentum distributions of final-state particles produced in nucleus-nucleus (AA), proton-nucleus (pA), and proton-proton (pp) collisions at high energies are investigated using a multisource ideal gas model. Our calculated results show that the contribution of hard emission can be neglected in the study of transverse momentum spectra of charged pions and kaons produced in Cu-Cu collisions at √s_NN=22.5 GeV. And if we consider the contribution of hard emission, the transverse momentum spectra of p and p produced in Cu-Cu collisions at √s_NN=22.5 GeV, K_s⁰ produced in Pb-Pb collisions at 158 A GeV, J/ψ particles produced in p-Pb collisions at 400 GeV and π⁺ , K⁺, p produced in proton-proton collisions at √s=200 GeV, can be described by the model, especially in the tail part of spectra.

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Transverse momentum spectra in high-energy nucleus-nucleus, proton-nucleus and proton-proton collisions

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