We study Bd → φKs decay in extra down-type quarks (EDQS) model with a non-universal Z boson associated with flavor changing neutral currents (FCNCs) at the tree level. With the up-to-date experimental data of Br...We study Bd → φKs decay in extra down-type quarks (EDQS) model with a non-universal Z boson associated with flavor changing neutral currents (FCNCs) at the tree level. With the up-to-date experimental data of Br(Bd → φKs), SCKs, and ACKs, we derive the bounds on the Z-b-s coupling parameter |Ubs | and the new weak phase φ, using the constrained parameter spaces, we finally give predictions for Bd → φφ decay, which could be tested at the Fermilab Tevatron and the LHC-b experiments.展开更多
基金supported by the Fundamental Research Funds for the Central Universities(Grant Nos.CQDXWL-2012-004CDJRC10100010+2 种基金106112016CDJXY100002)the China Scholarship Council(Grant No.201606055028)the MOE Project of Humanities and Social Sciences on the West and the Border Area(Grant No.14XJC910001)
基金The research was supported by the Fundamental Research Funds for the Central Universities(Grant Nos.2020CDJSK02ZH03,2021CDSKXYJG012)the MOE project of Humanities and Social Sciences on the west and the border area(Grant Nos.20XJC910001,14XJC910001)+1 种基金the China Scholarship Council(Grant No.201606055028)the National Natural Science Foundation of China(Grant No.11671060).
基金Supported by the Natural Science Foundation of Henan Province under Grant No.092300410205
文摘We study Bd → φKs decay in extra down-type quarks (EDQS) model with a non-universal Z boson associated with flavor changing neutral currents (FCNCs) at the tree level. With the up-to-date experimental data of Br(Bd → φKs), SCKs, and ACKs, we derive the bounds on the Z-b-s coupling parameter |Ubs | and the new weak phase φ, using the constrained parameter spaces, we finally give predictions for Bd → φφ decay, which could be tested at the Fermilab Tevatron and the LHC-b experiments.