Angular distribution coefficients of Z(W) boson produced in collisions at GeV *Supported by National Natural Science Foundation of China (11475183) and the Key Research Program of Frontier Sciences, CAS, (Y7292610K1). (April 2019) - Wang 王, Yu-Dong 玉东
Abstract: At the designed circular electron-positron collider (CEPC), similar to the hadron collider, the angular distribution coefficients of the decay lepton pair from the produced Z ( W ) boson in collisions are predicted. Their dependence on cos (cos ) are presented in four different polarization frames. Furthermore, the value of the angular distribution coefficients in different bins of cos are presented in the C-S frame. In comparison with the case at the hadron collider, better accurate measurement for Z ( W ) is expected because there is less background, and W could be reconstructed from its leptonic decay channel. This works provides a method to precisely test the electroweak production mechanism or some effect induced from new physics in the future measurements at the CEPC.