Pion Interferometry for Cylindrical Quark-Gluon Plasma Evolution Sources

Efaaf M.J.; ZHANG Wei-Ning; Khaliliasr M.; HUO Lei; JIN En-Pei; ZHANG Jing-Bo

Chinese Physics C> 2005, Vol. 29> Issue(5) : 467-471

Pion Interferometry for Cylindrical Quark-Gluon Plasma Evolution Sources

Department of Physics,Harbin Institute of Technology,Harbin 150006,China

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Abstract：
We examine the two-pion Hanbury-Brown-Twiss (HBT) interferometry for the expanding sources of quark-gluon plasma evolution with the Bjorken cylinder geometry.The two-pion HBT correlation functions are calculated using quantum probability amplitudes in a path-integral formalism and the HBT radius is extracted both for the expanding source and the static source.We find that the HBT radius for the freeze-out emission case is substantially greater than that for the without absorption of multiple scattering case. The expanding velocity of the source leads to a smaller HBT radius. The effect of expanding velocity for the Bjorken cylinder source with zero width of the transition temperature is smaller than those of the corresponding spherical source.

References

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Efaaf M.J., ZHANG Wei-Ning, Khaliliasr M., HUO Lei, JIN En-Pei and ZHANG Jing-Bo. Pion Interferometry for Cylindrical Quark-Gluon Plasma Evolution Sources[J]. Chinese Physics C, 2005, 29(5): 467-471.

Efaaf M.J., ZHANG Wei-Ning, Khaliliasr M., HUO Lei, JIN En-Pei and ZHANG Jing-Bo. Pion Interferometry for Cylindrical Quark-Gluon Plasma Evolution Sources[J]. Chinese Physics C, 2005, 29(5): 467-471. shu

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Received: 2004-11-15
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

Pion Interferometry for Cylindrical Quark-Gluon Plasma Evolution Sources

Corresponding author: ZHANG Wei-Ning,

Department of Physics,Harbin Institute of Technology,Harbin 150006,China

Received Date: 2004-11-15
Accepted Date: 1900-01-01
Available Online: 2005-05-05

Abstract: We examine the two-pion Hanbury-Brown-Twiss (HBT) interferometry for the expanding sources of quark-gluon plasma evolution with the Bjorken cylinder geometry.The two-pion HBT correlation functions are calculated using quantum probability amplitudes in a path-integral formalism and the HBT radius is extracted both for the expanding source and the static source.We find that the HBT radius for the freeze-out emission case is substantially greater than that for the without absorption of multiple scattering case. The expanding velocity of the source leads to a smaller HBT radius. The effect of expanding velocity for the Bjorken cylinder source with zero width of the transition temperature is smaller than those of the corresponding spherical source.