摘要
The large electron positron collider value of branching ratio Rb is larger than the standard model predicted value RSMb,this deviationδRb is treated as an allowed range for the correction to the single top quark production cross sectionσ(tb)arising from the extended technicolor dynamics.It is found that the relative correctionδσ(tb)/σ0(tb)is quite large for a certain range of the free parameters in the model,and may be detected in the future proton-antiproton collision experiments.
作者
YUE Chong-xing
LU Gong-ru
岳崇兴;鲁公儒(CCAST(World Laboratory),P.O.Box 8730,Beijing 100080;and Department of Physics,He’nan Normal University,Xinxiang 453002)
基金
Supported by the National Natural Science Foundation of China under Grant No.19775012
the Natural Foundation of He7nan Scientific Committee。