Two-pion interferometry for a partially coherent evolution source

LI Jian-Wei; YU Li-Li; ZHANG Wei-Ning

doi:10.1088/1674-1137/32/2/009

Chinese Physics C> 2008, Vol. 32> Issue(2) : 120-125 DOI: 10.1088/1674-1137/32/2/009

Two-pion interferometry for a partially coherent evolution source

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Abstract：
We give the formulas of two-pion Hanbury-Brown-Twiss (HBT) correlation function for a partially coherent evolution pion-emitting source, using quantum probability amplitudes in a path-integral formalism. The multiple scattering of the particles in the source is taken into consideration based on Glauber scattering theory. Two-pion interferometry with effects of the multiple scattering and source collective expansion is examined for a partially coherent source of hadronic gas with a finite baryon density and evolving hydrodynamically. We do not find observable effect of either the multiple scattering or the source collective expansion on HBT chaotic parameter.

References

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. Wong C Y. Introduction to High-Energy Heavy-Ion Collisions. Singapore: World Scientific, 19942. Wiedemann U A, Heinz U. Phys. Rept., 1999, 319: 1453. Weiner R M. Phys. Rept., 2000, 327: 2494. Wong C Y. J. Phys., 2003, G29: 21515. Wong C Y. J. Phys., 2004 G30: S10536. Wong C Y. AIP Conference Proc., 2006, 828: 617. hep-ph/05102587. ZHANG W N, Efaaf M J, Wong C Y et al. Chin. Phys. Lett., 2004, 21: 19188. Glauber R J. Lectures in Theoretical Physics. Interscience,N.Y., 1959. 3159. Landau L D, Lifshitz E M. Fluid Mechanics. New York:Pergamon, 195910. Rischke D H, Gyulassy M. Nucl. Phys. A, 1996, 608: 47911. LIU Y M, Beavis D, CHU S Y et al. Phys. Rev. C, 1986,34: 166712. ZHANG W N, LIU Y M, HUO L et al. HEP NP, 1996,20: 26913. Akkelin S V, Lednicky R, Sinyukov Y M. Phys. Rev. C,2002, 65: 064904

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LI Jian-Wei, YU Li-Li and ZHANG Wei-Ning. Two-pion interferometry for a partially coherent evolution source[J]. Chinese Physics C, 2008, 32(2): 120-125. doi: 10.1088/1674-1137/32/2/009

LI Jian-Wei, YU Li-Li and ZHANG Wei-Ning. Two-pion interferometry for a partially coherent evolution source[J]. Chinese Physics C, 2008, 32(2): 120-125. doi: 10.1088/1674-1137/32/2/009 shu

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Received: 2007-04-05
Revised: 2007-07-13

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沈阳化工大学材料科学与工程学院沈阳 110142

Two-pion interferometry for a partially coherent evolution source

Corresponding author: ZHANG Wei-Ning,

Received Date: 2007-04-05
Accepted Date: 2007-07-13
Available Online: 2008-02-05

Abstract: We give the formulas of two-pion Hanbury-Brown-Twiss (HBT) correlation function for a partially coherent evolution pion-emitting source, using quantum probability amplitudes in a path-integral formalism. The multiple scattering of the particles in the source is taken into consideration based on Glauber scattering theory. Two-pion interferometry with effects of the multiple scattering and source collective expansion is examined for a partially coherent source of hadronic gas with a finite baryon density and evolving hydrodynamically. We do not find observable effect of either the multiple scattering or the source collective expansion on HBT chaotic parameter.