Ansatz for small FCNC with a non-universal Z′

Xiao Gang He, G. Valencia

Research output: Contribution to journalArticleResearchpeer-review

22 Citations (Scopus)

Abstract

It is well known that a non-universal Z induces tree-level FCNC which are severely constrained by experiment, most notably meson mixing. We point out that there is a class of models, with a down-quark mass matrix of the Georgi-Jarlskog form, in which the FCNC in the down-type quark sector vanish or are strongly suppressed. The largest FCNC in these models would occur in the tc transition with a strength comparable to Vt s.

Original languageEnglish
Pages (from-to)72-75
Number of pages4
JournalPhysics Letters B
Volume680
Issue number1
DOIs
Publication statusPublished - 14 Sep 2009
Externally publishedYes

Cite this