Test of Nonstatic Spherical Quark-Gluon Plasma by Two-Pion Interferometry

CHEN Xiao-Fan

Chinese Physics C> 2007, Vol. 31> Issue(2) : 173-176

Test of Nonstatic Spherical Quark-Gluon Plasma by Two-Pion Interferometry

CHEN Xiao-Fan ^,

Department of Physics, Harbin Institute of Technology, Harbin 150001, China

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Abstract：
A model of expanding pion sources in relativistic heavy ion collisions, when only hadronic matter is generated, is proposed. The two-pion correlation function at small relative momentum for such a model is obtained with two-pion interferometry at small relative momentum, and the relation between the real spatial parameter R_e and the apparent spatial parameter R_a of the pion sources is given. The relation is different from the one when QGP is created. The difference can be used to test nonstatic, spherical quark-gluon plasma produced in relativistic heavy ion collisions. The relation also showes a scaling behavior.

References

[1]

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CHEN Xiao-Fan. Test of Nonstatic Spherical Quark-Gluon Plasma by Two-Pion Interferometry[J]. Chinese Physics C, 2007, 31(2): 173-176.

CHEN Xiao-Fan. Test of Nonstatic Spherical Quark-Gluon Plasma by Two-Pion Interferometry[J]. Chinese Physics C, 2007, 31(2): 173-176. shu

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Received: 2006-01-17
Revised: 2006-09-05

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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

Test of Nonstatic Spherical Quark-Gluon Plasma by Two-Pion Interferometry

Corresponding author: CHEN Xiao-Fan,

Department of Physics, Harbin Institute of Technology, Harbin 150001, China

Received Date: 2006-01-17

Accepted Date: 2006-09-05

Available Online: 2007-02-05

Abstract: A model of expanding pion sources in relativistic heavy ion collisions, when only hadronic matter is generated, is proposed. The two-pion correlation function at small relative momentum for such a model is obtained with two-pion interferometry at small relative momentum, and the relation between the real spatial parameter R_e and the apparent spatial parameter R_a of the pion sources is given. The relation is different from the one when QGP is created. The difference can be used to test nonstatic, spherical quark-gluon plasma produced in relativistic heavy ion collisions. The relation also showes a scaling behavior.

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Test of Nonstatic Spherical Quark-Gluon Plasma by Two-Pion Interferometry

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