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

CHEN E-Sheng; LI Ming-Ming

Chinese Physics C> 1991, Vol. 15> Issue(11) : 981-990

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

CHEN E-Sheng ^, ,
LI Ming-Ming

Department of Physics,Shandong University,Jinan 250100Department of Physics,Jinan University

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

References

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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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沈阳化工大学材料科学与工程学院沈阳 110142

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

CHEN E-Sheng ^,
LI Ming-Ming

Corresponding author: CHEN E-Sheng,

Department of Physics,Shandong University,Jinan 250100Department of Physics,Jinan University

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1991-11-05

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