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Chinese Physics C> 1987, Vol. 11> Issue(6) : 840-843 

MULTIPLICITY DISTRIBUTION IN e+e－ ANNIHILATION

  • Experimental distributions of the charged multiplicity in e+e－ annihilation are analysed. It is pointed out that the distribution is likely to be a superposition of the distribution of the number of quark-antiquark pairs, which is possibly a poissonian, and the distribution resulting from the quark combination. Calculations have been done by using a quark combination rule which is successful in many other aspects. The result is in agreement with the data. A special disscussion about the light quark jet events is also made.
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    [1] Z. lcoba, H. B. Nielson and P. Oleson, Nucl.Phys.,B40(1972),317.C. S. Lam and M. A. Walton, Phys. Lett.,140B:1984), 246.A. Bialas and F. Havot, Phys. Rev., D33(1986), 39.[2] T. T. Chou and C. N. Yang, Phys. Rev. Lett., 55(1984), 1359; Phys. Lett., 167B(1986), 453.[3] C. K. Chew and Y. K. Lim, Phys. Lett., 163B(1985), 257.[4] PLUTO Collab. Ch. Berger et al., Phys. Lett., 95B(1980), 313.TASSO Collab. M. Althoff et al., Z. Phys., C22(1984), 307.JADE Collab. W. Bartel et al., Z. Phys., c20(1983), 187.LENA Collab. B. Niczyporuk et al., Z. Phys., C9(1981), 1.[5] V. V. Anisovich et al., Z. Phys., C19(1983), 221; Sou. J. Xucl. Phys., 27(1984), 900.[6] Xie Qu-Bing and Liu Xi-ming, 'Quark production rule in e+e-+Two Jets'. Chin. J., High Ener. and Nucl.Phys., to be Published.[7] Xie Qu-Bing and Liu Xi-ming, Chin. J. High Ener. and Nucl. Phys, 11(1987), 192; and 'Hadron Yeilds in high energy pp Collision.' ibid. Vol. 11. No. 4, to be Published.[8] Xie Qu-Bing et al, Chin. J. Phys. Ener. For. et Phys. Nucl., 8(1984), 642.[9] M. S. Alam et al, Phys. Rev. Lett., 49(1982), 357.[10] R. H. Schinder et al, Phys. Rev, D24(1981), 78.

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LIANG Zuo-Tang and XIE Qu-Bing. MULTIPLICITY DISTRIBUTION IN e+e－ ANNIHILATION[J]. Chinese Physics C, 1987, 11(6): 840-843.
LIANG Zuo-Tang and XIE Qu-Bing. MULTIPLICITY DISTRIBUTION IN e+e－ ANNIHILATION[J]. Chinese Physics C, 1987, 11(6): 840-843. shu
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Received: 1900-01-01
Revised: 1900-01-01
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MULTIPLICITY DISTRIBUTION IN e+e－ ANNIHILATION

    Corresponding author: LIANG Zuo-Tang,
  • Received Date: 1900-01-01
  • Accepted Date: 1900-01-01
  • Available Online: 1987-12-05

Abstract: Experimental distributions of the charged multiplicity in e+e－ annihilation are analysed. It is pointed out that the distribution is likely to be a superposition of the distribution of the number of quark-antiquark pairs, which is possibly a poissonian, and the distribution resulting from the quark combination. Calculations have been done by using a quark combination rule which is successful in many other aspects. The result is in agreement with the data. A special disscussion about the light quark jet events is also made.

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