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YANG Zhi-tao, JIRIMUTU, ZHANG Wei-ning. Extracting Information of Core Halo Model in Heavy ion Collisions by Imaging Technique[J]. Nuclear Physics Review, 2009, 26(2): 117-122. doi: 10.11804/NuclPhysRev.26.02.117
Citation: YANG Zhi-tao, JIRIMUTU, ZHANG Wei-ning. Extracting Information of Core Halo Model in Heavy ion Collisions by Imaging Technique[J]. Nuclear Physics Review, 2009, 26(2): 117-122. doi: 10.11804/NuclPhysRev.26.02.117
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Extracting Information of Core Halo Model in Heavy ion Collisions by Imaging Technique

doi: 10.11804/NuclPhysRev.26.02.117

  • 1 Department of Physics, Harbin Institute of Technology, Harbin 150006, China;2 School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, Liaoning China;3 Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Research Facility in Lanzhou, Lanzhou 730000, China)

  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2009-06-20
  • We characterize the spatial dimension of pionemitting source in highenergy heavy ion collisions with the radius of rootmeansquared of twopion relativedistance Rrmst. Based on the imaging technique， one can calculate Rrmst modelindependently. Applying this method to the Core-Halo model and comparing the results with that of Gaussian fitted， the results indicate that due to the effects of longlived resonance decay， the values of Rrmst show a larger spatial size of pionemitting region. Meanwhile， for the chaotic source the chaoticity factors calculated by imaging technique are larger than that of Gaussian fitted.
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Extracting Information of Core Halo Model in Heavy ion Collisions by Imaging Technique

doi: 10.11804/NuclPhysRev.26.02.117
  • 1 Department of Physics, Harbin Institute of Technology, Harbin 150006, China;2 School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, Liaoning China;3 Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Research Facility in Lanzhou, Lanzhou 730000, China)
  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2009-06-20

Abstract: We characterize the spatial dimension of pionemitting source in highenergy heavy ion collisions with the radius of rootmeansquared of twopion relativedistance Rrmst. Based on the imaging technique， one can calculate Rrmst modelindependently. Applying this method to the Core-Halo model and comparing the results with that of Gaussian fitted， the results indicate that due to the effects of longlived resonance decay， the values of Rrmst show a larger spatial size of pionemitting region. Meanwhile， for the chaotic source the chaoticity factors calculated by imaging technique are larger than that of Gaussian fitted.

YANG Zhi-tao, JIRIMUTU, ZHANG Wei-ning. Extracting Information of Core Halo Model in Heavy ion Collisions by Imaging Technique[J]. Nuclear Physics Review, 2009, 26(2): 117-122. doi: 10.11804/NuclPhysRev.26.02.117
Citation: YANG Zhi-tao, JIRIMUTU, ZHANG Wei-ning. Extracting Information of Core Halo Model in Heavy ion Collisions by Imaging Technique[J]. Nuclear Physics Review, 2009, 26(2): 117-122. doi: 10.11804/NuclPhysRev.26.02.117
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