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Chinese Physics C> 1996, Vol. 20> Issue(2) : 142-147 

π－π－ Bose-Einstein Correlation at AGS Energies

  •  China Institute of Atomic Energy,Beijing 102413

  • The study of Bose-Einstein correlations between two identical particles offers a powerful probe to the space-time evolution of ultrarelativistic nucleus collisions.We calculate the correlation function of π－π－ due to the four space-time and four-momentum distributions of π-at freeze-out in hadronic cascade simulation of 28Si(14.6 A GeV/c)+Au reactions.The correlation function calculated by Fourier transformation method,the correlation function resulted from fullcalculation and the corresponding experimental correlation function agree each other very well.The above freeze-out configuration of π－ is also used to calculate the root mean square length of π－ source.These lengths are compared with the conventional fitted radius parameters of source.
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    [1] D.H.Boal et al.,Rev.Mod.Phys.,62（1990）553.[2]M.Gyulassy et al.,Phys.Rev.C20（1979）2267.[3]T.Abbott et al.,Phys.Rev.Lett.,69（1992）1030.[4]Y.Akiba et al.,Phys.Rev.Lett.,70（1993）1057.[5]J.P.Sullivan et al.,Phys.Rev.Lett.,70（1993）3000.[6]H.Bggild et al,Phys.Lett.,B302（1993）510.[7]S.Pratt et al.,Nucl.Phys.,A566（1994）103c.[8]W.Q.Chaoetal.,Nucl.Phys.,A573（1994）641.[9]Z.Q.Wang et al.,Chinese Phys.Lett,10（1993）468.[10]CheukyinWong et al.,Phys.Rev.,D39（1989）2606.[11]宋光等，高能物理与核物理，19（1995）172.[12]E810Colla,S.E.Eisemam el al,Phys.Lett,B292（1992）10.[I3]E802Colla,T.Abbott et al,Phys.Rev.Lett.,64（1990）847.[14]E802Colla.,H.Hamagaki et al.,Nucl.Phys,A566（1994）27c.

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Feng Zhonghan, Sa Benhao and Wang Ruihong. π－π－ Bose-Einstein Correlation at AGS Energies[J]. Chinese Physics C, 1996, 20(2): 142-147.
Feng Zhonghan, Sa Benhao and Wang Ruihong. π－π－ Bose-Einstein Correlation at AGS Energies[J]. Chinese Physics C, 1996, 20(2): 142-147. shu
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Received: 1900-01-01
Revised: 1900-01-01
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π－π－ Bose-Einstein Correlation at AGS Energies

    Corresponding author: Feng Zhonghan,
  • China Institute of Atomic Energy,Beijing 102413
  • Received Date: 1900-01-01
  • Accepted Date: 1900-01-01
  • Available Online: 1996-02-05

Abstract: The study of Bose-Einstein correlations between two identical particles offers a powerful probe to the space-time evolution of ultrarelativistic nucleus collisions.We calculate the correlation function of π－π－ due to the four space-time and four-momentum distributions of π-at freeze-out in hadronic cascade simulation of 28Si(14.6 A GeV/c)+Au reactions.The correlation function calculated by Fourier transformation method,the correlation function resulted from fullcalculation and the corresponding experimental correlation function agree each other very well.The above freeze-out configuration of π－ is also used to calculate the root mean square length of π－ source.These lengths are compared with the conventional fitted radius parameters of source.

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