Gluon saturation and baryon stopping in the SPS, RHIC, and LHC energy regions

LI Shuang; FENG Sheng-Qin

doi:10.1088/1674-1137/36/2/006

Chinese Physics C> 2012, Vol. 36> Issue(2) : 136-141 DOI: 10.1088/1674-1137/36/2/006

Gluon saturation and baryon stopping in the SPS, RHIC, and LHC energy regions

LI Shuang ,
FENG Sheng-Qin ^,

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Abstract：
A new geometrical scaling method with a gluon saturation rapidity limit is proposed to study the gluon saturation feature of the central rapidity region of relativistic nuclear collisions. The net-baryon number is essentially transported by valence quarks that probe the saturation regime in the target by multiple scattering. We take advantage of the gluon saturation model with geometric scaling of the rapidity limit to investigate net baryon distributions, nuclear stopping power and gluon saturation features in the SPS and RHIC energy regions. Predictions for net-baryon rapidity distributions, mean rapidity loss and gluon saturation feature in central Pb+Pb collisions at the LHC are made in this paper.

References

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LI Shuang and FENG Sheng-Qin. Gluon saturation and baryon stopping in the SPS, RHIC, and LHC energy regions[J]. Chinese Physics C, 2012, 36(2): 136-141. doi: 10.1088/1674-1137/36/2/006

LI Shuang and FENG Sheng-Qin. Gluon saturation and baryon stopping in the SPS, RHIC, and LHC energy regions[J]. Chinese Physics C, 2012, 36(2): 136-141. doi: 10.1088/1674-1137/36/2/006 shu

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Received: 2011-05-09
Revised: 2011-07-29

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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 baryon stopping in the SPS, RHIC, and LHC energy regions

Corresponding author: FENG Sheng-Qin,

Received Date: 2011-05-09

Accepted Date: 2011-07-29

Available Online: 2012-02-05

Abstract: A new geometrical scaling method with a gluon saturation rapidity limit is proposed to study the gluon saturation feature of the central rapidity region of relativistic nuclear collisions. The net-baryon number is essentially transported by valence quarks that probe the saturation regime in the target by multiple scattering. We take advantage of the gluon saturation model with geometric scaling of the rapidity limit to investigate net baryon distributions, nuclear stopping power and gluon saturation features in the SPS and RHIC energy regions. Predictions for net-baryon rapidity distributions, mean rapidity loss and gluon saturation feature in central Pb+Pb collisions at the LHC are made in this paper.

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Gluon saturation and baryon stopping in the SPS, RHIC, and LHC energy regions

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