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Chinese Physics C> 2007, Vol. 31> Issue(3) : 274-277 

Two- and Three-Pion Bose-Einstein Correlations for Granular Source of Coherent Droplets

  •  Department of Physics, Harbin Institute of Technology, Harbin 150001, China2 Department of Physics, Dalian University of Technology, Dalian 116024, China3 Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou 730000, China

  • We examine the two-pion and three-pion correlation functions for a granular source model of coherent droplets under the assumption that the pions emitted from the same droplet are coherent. The chaoticity of the source increases with the number of droplets in the granular source. By comparing the normalized pure three-pion correlations of the granular source and a partially coherent Gaussian source, we find that the difference of the nomalized pure three-pion correlations between the two sources is distinct in small Q3 regine, when the chaoticity parameter of two-pion correlation is smaller than 0.8.
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    [1] . Adler C et al(STAR Collaboration). Phys. Rev. Lett., 2001,87: 0823012. Adcox K et al(PHENIX Collaboration). Phys. Rev. Lett.,2002, 88: 1923023. Adler S S et al(PHENIX Collaboration). Phys. Rev. Lett.,2004, 93: 1523024. Adams J et al(STAR Collaboration). Phys. Rev., 2005,C71: 0449065. Wiedemann U A, Heinz U. Phys. Rept., 1999, 327: 2496. Solf S, Bass S A, Dumitru A. Phys. Rev. Lett., 2001, 86:39817. Weiner R M. Phys. Rept., 2002, 327: 2498. Pratt S. Nucl. Phys., 2003, A715: 389c9. ZHANG W N, Efaaf M J, WONG C Y. Phys. Rev., 2004,C70: 02490310. ZHANG W N, REN Y Y, WONG C Y. Phys. Rev., 2006,C74: 02490811. Witten E. Phys. Rev., 1984, D30: 27212. Pratt S, Siemens P J, Vischer A P. Phys. Rev. Lett., 1992,68: 110913. ZHANG W N, LIU Y M, HUO L et al. Phys. Rev., 1995,C51: 92214. ZHANG W N, TANG G X, CHEN X J et al. Phys. Rev.,2000, C62: 04490315. WONG C Y, ZHANGWN. Phys. Rev., 2004, C70: 06490416. ZHANG W N, LI S X, WONG C Y et al. Phys. Rev., 2005,C71: 06490817. Gyulassy M, Padula S S. Phys. Lett., 1988, B217: 18118. ZHANG W N, LIU Y M, WANG S et al. Phys. Rev., 1993,C47: 79519. Csrg#246; T, Lrstad B, Zimányi J. Z. Phys., 1996, C71: 49120. Heiselberg H. Phys. Lett., 1996, B379: 2721. Wiedemann U A, Heinz U. Phys. Rev., 1997, C56: 326522. Heinz U, ZHANG Q H. Phys. Rev., 1997, C56: 42623. Heiselberg H, Vischer A P. Phys. Rev., 1997, C55: 87424. Nakamura H, Seki R. Phys. Rev., 1999, C60: 06490425. LIU Y M, Beavis D, CHU S Y et al. Phys. Rev., 1986, C34:166726. ZHANG W N, LIU Y M, HUO L et al. High Energy Phys.and Nucl. Phys., 1996, 20: 26927. Humanic T J. Phys. Rev., 1999, C60: 01490128. Bggild H, Boissevain J, Dodd J et al(NA44 Collaboration).Phys. Lett., 1999, B455: 77; Bearden I G, Bggild H, Boissevain J et al(NA44 Collaboration). Phys. Lett., 2001,B517: 2529. Aggarwal M M, Agnihotri A, Ahammed Z et al(WA98 Collaboration).Phys. Rev. Lett., 2000, 85: 289530. Adams J, Adler C, Ahammed Z et al(STAR Collaboration).Phys. Rev. Lett., 2003, 91: 26230131. Heinz U, Sugarbaker A. Phys. Rev., 2004, C70: 054908

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YANG Zhi-Tao, HUO Lei, ZHANG Jing-Bo, ZHANG Wei-Ning and Two- and Three-Pion Bose-Einstein Correlations for Granular Source of Coherent Droplets[J]. Chinese Physics C, 2007, 31(3): 274-277.
YANG Zhi-Tao, HUO Lei, ZHANG Jing-Bo, ZHANG Wei-Ning and Two- and Three-Pion Bose-Einstein Correlations for Granular Source of Coherent Droplets[J]. Chinese Physics C, 2007, 31(3): 274-277. shu
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Received: 2006-07-31
Revised: 2006-09-04
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Two- and Three-Pion Bose-Einstein Correlations for Granular Source of Coherent Droplets

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  • Department of Physics, Harbin Institute of Technology, Harbin 150001, China2 Department of Physics, Dalian University of Technology, Dalian 116024, China3 Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou 730000, China
  • Received Date: 2006-07-31
  • Accepted Date: 2006-09-04
  • Available Online: 2007-03-05

Abstract: We examine the two-pion and three-pion correlation functions for a granular source model of coherent droplets under the assumption that the pions emitted from the same droplet are coherent. The chaoticity of the source increases with the number of droplets in the granular source. By comparing the normalized pure three-pion correlations of the granular source and a partially coherent Gaussian source, we find that the difference of the nomalized pure three-pion correlations between the two sources is distinct in small Q3 regine, when the chaoticity parameter of two-pion correlation is smaller than 0.8.

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