Possible Effects of Noncommutative Geometry on Weak CP Violation and
Unitarity Triangles
release_xwzojlaoqfbsrdaibpecnz7gam
by
Zhe Chang,
Zhi-zhong Xing
2002
Abstract
Possible effects of noncommutative geometry on weak CP violation and
unitarity triangles are discussed by taking account of a simple version of the
momentum-dependent quark mixing matrix in the noncommutative standard model. In
particular, we calculate nine rephasing invariants of CP violation and
illustrate the noncommutative CP-violating effect in a couple of charged
D-meson decays. We also show how inner angles of the deformed unitarity
triangles are related to CP-violating asymmetries in some typical B_d and B_s
transitions into CP eigenstates. B-meson factories are expected to help probe
or constrain noncommutative geometry at low energies in the near future.
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