Global Quark Polarization in QGP in Non-central AA Collisions

GAO Jian-Hua

Chinese Physics C> 2007, Vol. 31> Issue(12) : 1181-1184

Global Quark Polarization in QGP in Non-central AA Collisions

GAO Jian-Hua ^,

School of Physics and Microelectronics, Shandong University, Ji'nan 250100, China

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Abstract：
There exists a large local relative orbital angular momentum between produced partons along the direction opposite to the reaction plane in the early stage of non-central heavy-ion collisions. This initial local orbital angular momentum can lead to quark polarization along the same direction due to spin-orbital coupling in QCD. We present the quark polarization by using hard thermal loop gluon propagator for quark-quark scattering in quark-gluon plasma and compare it with the result obtained from the static potential model.

References

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GAO Jian-Hua. Global Quark Polarization in QGP in Non-central AA Collisions[J]. Chinese Physics C, 2007, 31(12): 1181-1184.

GAO Jian-Hua. Global Quark Polarization in QGP in Non-central AA Collisions[J]. Chinese Physics C, 2007, 31(12): 1181-1184. shu

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Received: 2007-07-17
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

Global Quark Polarization in QGP in Non-central AA Collisions

GAO Jian-Hua ^,

Corresponding author: GAO Jian-Hua,

School of Physics and Microelectronics, Shandong University, Ji'nan 250100, China

Received Date: 2007-07-17
Accepted Date: 1900-01-01
Available Online: 2007-12-05

Abstract: There exists a large local relative orbital angular momentum between produced partons along the direction opposite to the reaction plane in the early stage of non-central heavy-ion collisions. This initial local orbital angular momentum can lead to quark polarization along the same direction due to spin-orbital coupling in QCD. We present the quark polarization by using hard thermal loop gluon propagator for quark-quark scattering in quark-gluon plasma and compare it with the result obtained from the static potential model.