Tree FCNC and non-unitarity of CKM matrix

C. S. Kim, Amol Dighe

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


We discuss possible signatures of the tree level FCNC, which results from the non-unitarity of CKM matrix. We first define the unitarity step-by-step, and possible test of the non-unitarity through the 4-value-KM parametrization. We, then, show how the phase angle of the unitary triangle would change in case of the vector-like down quark model. As another example of tree FCNC, we investigate the leptophobic Z′ model and its application to the recent Bs mixing measurements.

Original languageEnglish
Pages (from-to)1445-1461
Number of pages17
JournalInternational Journal of Modern Physics E
Issue number5
Publication statusPublished - 2007 Jun

Bibliographical note

Funding Information:
CSK is supported in part by CHEP-SRC and in part by the KRF Grant funded by the Korean Government (MOEHRD) No. KRF-2005-070-C00030.

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy(all)


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