-
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.
-
-
References
[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.
|
-
[1] |
Hao Yang
, Zhi-Qing Zhang
, You-Ya Yang
, Peng Li
. $ D^*_{(s)}\to P $ form factors and their applications to semi-leptonic and non-leptonic weak decays. Chinese Physics C,
2025, 49(12): 123104.
doi: 10.1088/1674-1137/adfb5d
|
[2] |
SHEN Shui-Fa
, YU Xiao-Han
. Decay of 83Sr and Discussion of Its Daughter's Band Structures. Chinese Physics C,
2004, 28(S1): 78-80. |
[3] |
Yu Hong
, Shen Qixing
, Zhang Lin
. Angular Distribution of Process e+e-→τ+τ-,τ-→a1υτ,a1→ρπ and Characteristics of a1 Meson. Chinese Physics C,
1994, 18(7): 583-590. |
-
Access
-
-