摘要
模型Ⅲ下,仅考虑来自于中性规范玻色子H^0,h^0和A^0产生的树图阶味改变中性流的贡献,并利用QCD因子化方法,对B_d^0→ΦK^(*0)衰变过程的极化反常和B_d→ΦK_S衰变过程的CP不对称进行了研究,经过计算发现,在147<|λ_(bs)λ_(ss)|<165的参数范围内,这两个过程中存在的反常现象能够同时给予解释.
Based on the low-energy effective Hamiltonian with generalized QCD factorization, we calculate the new physics contributions to Bd^0 →ФK^＊0 polarization anomaly and Bd^0 →ФK^＊0 CP asymmetry induced by the neutral Higgs bosons H^0, h^0 and A^0 of the two Higgs doublet model Ⅲ. Within reasonable ranges of parameters, simultaneous solutions to the anomalies of the two processes give out 147 〈 ｜λbsλss｜ 〈 165. It will be really interesting in searching for the signs of new physics.
出处
《高能物理与核物理》
CSCD
北大核心
2007年第10期900-906,共7页
High Energy Physics and Nuclear Physics
基金
国家自然科学基金(10575029)
河南省教育厅自然科学基金(0611050300)资助~~
关键词
模型Ⅲ
QCD因子化
味改变中性流
two Higgs doublet model Ⅲ, QCD factorization, flavor changing neutral currents
