Supersymmetry Breaking In Orbifolds Compactifications

TL;DR

This paper examines how the Scherk-Schwarz mechanism in orbifold compactifications leads to light Kaluza-Klein states, which could serve as experimental evidence for string theory if detected.

Contribution

It specifically analyzes the quantum numbers of the lightest KK states resulting from supersymmetry breaking via the Scherk-Schwarz mechanism in orbifold models.

Findings

Light KK states have distinctive quantum numbers.

Detection of these states would support string theory.

The mechanism predicts large internal dimensions.

Abstract

Known mechanisms for breaking of supersymmetry at the level of string theory imply that at least one of the internal dimensions has a very large size. Experimental detection of the associated light Kaluza-Klein (KK) excitations would be a strong hint for the existence of string like elementary objects, as no consistent field theory describing them is known. We restrict the discussion to the Scherk-Schwarz mechanism in orbifold compactifications. For this case we investigate the quantum number of the lightest predicted KK states.