A solution to the mu problem in the supersymmetric unparticle physics

TL;DR

This paper explores how unparticles, as a conformal hidden sector, can address the mu problem in supersymmetric models by analyzing their mixing with the Higgs after symmetry breaking.

Contribution

It introduces a novel scenario where unparticles serve as a hidden sector in SUSY breaking, offering a potential solution to the mu problem.

Findings

Unparticle-Higgs mixing occurs after electroweak symmetry breaking.

Unparticles can act as a hidden sector influencing SUSY breaking.

The scenario provides a new approach to solving the mu problem in SUSY models.

Abstract

Recently, conceptually new physics beyond the Standard Model has been proposed by Georgi, where a new physics sector becomes conformal and provides "unparticle" which couples to the Standard Model sector through higher dimensional operators in low energy effective theory. Among several possibilities, we focus on operators involving the (scalar) unparticle, Higgs and the gauge bosons. Once the Higgs develops the vacuum expectation value (VEV), the conformal symmetry is broken and as a result, the mixing between the unparticle and the Higgs boson emerges. In this paper, we consider the unparticle as a hidden sector of supersymmetry (SUSY) breaking, and give some phenomenological consequences of this scenario. The result shows that there is a possibility for the unparticle as a hidden sector in SUSY breaking sector, and can provide a solution to the mu problem in SUSY models.