B -> K pi Puzzle and New Sources of CP Violation in Supersymmetry

TL;DR

This paper investigates the B -> K pi CP asymmetry discrepancy as a potential sign of new CP violation sources in supersymmetry, focusing on flavor non-universal trilinear scalar couplings.

Contribution

It proposes a supersymmetry breaking model with large CP violation in electroweak penguins to explain the B -> K pi puzzle.

Findings

Enhanced CP violation can arise from non-universal trilinear couplings.

The model provides a possible explanation for the observed CP asymmetry difference.

New sources of CP violation could be detectable in future experiments.

Abstract

The difference between the CP asymmetries of the $B^0 \to K^+ \pi^-$ and $B^+ \to K^+ \pi^0$ decays has been recently confirmed with an evidence larger than $5\sigma$'s. We discuss it as a possible signal of new physics associated with new (large) CP violation in the electroweak penguin contributions. We propose a supersymmetry breaking scheme where such new sources of CP violation occur in the flavor non-universal trilinear scalar couplings.