Solution to the B -> pi K Puzzle in a Flavor-Changing Z' Model

Preprint

16 June 2004

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ph/0406126

Abstract

Recent experiments suggest that certain B -> pi K branching ratios are inconsistent with the standard model expectations. We show that a flavor-changing Z' provides a solution to the problem. Electroweak penguin amplitudes are enhanced by the Z' boson for select parameters. We discuss implications for the Z' mass and its couplings to the standard model fermions. We also show that the solution is consistent with constraints from the CP asymmetries of the B -> phi K_S decay.

Keywords

EXPERIMENTS SUGGEST
RECENT EXPERIMENTS
FLAVOR CHANGING Z
STANDARD MODEL
ASYMMETRIES
K PUZZLE
PI K

All Related Versions

Version 1, 2004-06-10, ArXiv
Version 2, 2004-06-16, ArXiv
Published version: Physics Letters B, 598 (3-4), 218.

This publication has 0 references indexed in Scilit: