Journal
PHYSICS LETTERS B
Volume 688, Issue 1, Pages 67-70Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2010.03.077
Keywords
KM matrix; Quark; Mixing; Unitarity; Triangle; Boomerang
Funding
- World Premier International Research Initiative (WPI initiative) MEXT, Japan
- U.S. Department of Energy [DE-FG02-05ER41418]
- NSC
- NCTS of ROC
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For the three family quark flavor mixing, the best parametrization is the original Kobayashi-Maskawa matrix, V(KM), with four real parameters: three rotation angles theta(1,2,3) and one phase delta. A popular way of presentation is by the unitarity triangle which, however, explicitly displays only three, not four, independent parameters. Here we propose an alternative presentation which displays simultaneously all four parameters: the unitarity boomerang. (C) 2010 Elsevier B.V. All rights reserved.
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