Possibility of discovering the next charge -13 quark through its flavor-changing neutral-current Decays
Journal
Physical Review Letters
Journal Volume
35
Journal Issue
9
Pages
617-620
Date Issued
1987
Author(s)
Robin G. Stuart
Abstract
If a fourth fermion generation exists, it is possible that the next charge -13 quark (b) is lighter than the top. The leading charged-current transition bcW* is expected to be strongly suppressed by mixing angles. This leads to the interesting and likely consequence that the b-quark decay is completely dominated by loop-induced flavor-changing neutral currents, which have distinctive experimental signatures. The relative importance of bbg*, bb, and bbZ transitions (as well as comparisons with bcW*) are explored for b masses up to 130 GeV. © 1989 The American Physical Society.
Type
journal article