Chinese Physics C > 2011, Vol. 35 > Issue(3): 255-258 DOI: 10.1088/1674-1137/35/3/008

Gluon saturation and net-proton spectra in relativistic nucleus-nucleus collisions

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Abstract：
By means of the AKK08 fragmentation function, the net-proton transverse momentum ( pT) spectra in A+A collisions are studied with two phenomenological models based on the Color Glass Condensate formalism. After a χ ²analysis of the experimental data from BRAHMS, the normalization constant Cis extracted at RHIC energies of √ sNN=62.4 and 200 GeV, and the theoretical results of the net-proton pT spectra at selected rapidities are also given. It is shown that the theoretical results are in good agreement with the experimental data. Finally, assuming the constant Cshould have an exponent dependence of √ sNN, we also predict the theoretical results of net-proton pT spectra at LHC energies of √ sNN=2.76, 3.94, and 5.52 TeV.

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WANG Hong-Min, HOU Zhao-Yu, WANG Xiu-Ting and SUN Xian-Jing. Gluon saturation and net-proton spectra in relativistic nucleus-nucleus collisions[J]. Chinese Physics C, 2011, 35(3): 255-258. doi: 10.1088/1674-1137/35/3/008

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Received: 2010-06-23
Revised: 2010-06-12

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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

Gluon saturation and net-proton spectra in relativistic nucleus-nucleus collisions

Received Date:2010-06-23

Accepted Date:2010-06-12

Available Online:2011-03-05

Abstract:By means of the AKK08 fragmentation function, the net-proton transverse momentum (pT) spectra in A+A collisions are studied with two phenomenological models based on the Color Glass Condensate formalism. After a χ²analysis of the experimental data from BRAHMS, the normalization constantCis extracted at RHIC energies of √sNN=62.4 and 200 GeV, and the theoretical results of the net-protonpT spectra at selected rapidities are also given. It is shown that the theoretical results are in good agreement with the experimental data. Finally, assuming the constantCshould have an exponent dependence of √sNN, we also predict the theoretical results of net-protonpT spectra at LHC energies of √sNN=2.76, 3.94, and 5.52 TeV.

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Gluon saturation and net-proton spectra in relativistic nucleus-nucleus collisions

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Gluon saturation and net-proton spectra in relativistic nucleus-nucleus collisions

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