Kaluza-Klein Mediated supersymmetry breaking.

Area of Science:

• Theoretical Physics
• High Energy Physics
• String Theory

Background:

• Four-dimensional effective theories with compactified extra dimensions are crucial for understanding fundamental physics.
• Supersymmetry breaking mechanisms are key to solving the hierarchy problem and predicting particle masses.

Purpose of the Study:

• To present a novel framework for mediating supersymmetry breaking to the visible sector.
• To explore the role of the radius modulus in generating mass splittings.

Main Methods:

• Consideration of four-dimensional effective theories with compactified extra dimensions.
• Analysis of a framework where the radius modulus has an auxiliary vacuum expectation value.
• Expression of soft masses in terms of renormalization-group functions.

Main Results:

• Modulus couplings generate mass splitting in Kaluza-Klein supermultiplets.
• The radius modulus acts as a messenger of supersymmetry breaking.
• Sparticle spectrum depends on the bulk field content.

Conclusions:

• The proposed framework offers a new mechanism for supersymmetry breaking mediation.
• The radius modulus plays a vital role in observable supersymmetry breaking effects.
• Further investigation into bulk field propagation can determine the sparticle spectrum.