Yields of Charmed and Beautiful Mesons in e+e Annihilation at s=10—178GeV 的e+e-

  • Based on the electroweak unified standard model,the probability Pi for the production of i-quark jet (i=u,d,c and b)in e+e annihilation has been studied.The probability Pi is a function of energy s.The calculated component ratios of Pu:Pd:Ps:Pc:Pb are 4:1:1:4:1 for s<30GeV.7:9:9:7:9 for s=mz=91.16GeV and 1:1:1:1:1 for s=78 and 117GeV,respectively.Using Pc and Pb,we whave calculated the yields of charmed and beautiful mesons in e+e annihilation at s=10—178GeV.
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  • [1] 陈鄂生,谢去病,中国科学A辑,1990,4; 377.[2] Particle Data Group, Phys. Lett., 204B (1988), 1.[3] T. Mori et al., Phys. Lett., 218B (1989), 499.[4] Particle Data Group, Phys. Lett., 239B (1990), III58.[5] U. Amaldi et al., Phys. Rev., D36 (1987), 1385.[6] ALEPH Collab., D. Decamp et al., Phys. Lett., 235B (1990), 399.[7] CDF Collab., Preprint Fermilab-Conf-90/138-E, [E-741/CDF].[8] ALEPH Colab., D. Decamp et al., Phys. Lett., 231B (1989), 519.[9] DEPHI Collab., Preprint CERN-PPE/90-123, 29 August 1990.[10] P. K. Malhotra and R. Orave, Z. Phys., C17 (1983), 85.[11] D. Bortoletto et al. Phys. Rev., D37 (1988), 1719.
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CHEN E-Sheng and LI Ming-Ming. Yields of Charmed and Beautiful Mesons in e+e Annihilation at s=10—178GeV 的e+e-[J]. Chinese Physics C, 1991, 15(11): 981-990.
CHEN E-Sheng and LI Ming-Ming. Yields of Charmed and Beautiful Mesons in e+e Annihilation at s=10—178GeV 的e+e-[J]. Chinese Physics C, 1991, 15(11): 981-990. shu
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Received: 1900-01-01
Revised: 1900-01-01
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Yields of Charmed and Beautiful Mesons in e+e Annihilation at s=10—178GeV 的e+e-

    Corresponding author: CHEN E-Sheng,
  • Department of Physics,Shandong University,Jinan 250100Department of Physics,Jinan University

Abstract: Based on the electroweak unified standard model,the probability Pi for the production of i-quark jet (i=u,d,c and b)in e+e annihilation has been studied.The probability Pi is a function of energy s.The calculated component ratios of Pu:Pd:Ps:Pc:Pb are 4:1:1:4:1 for s<30GeV.7:9:9:7:9 for s=mz=91.16GeV and 1:1:1:1:1 for s=78 and 117GeV,respectively.Using Pc and Pb,we whave calculated the yields of charmed and beautiful mesons in e+e annihilation at s=10—178GeV.

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