Abstract
We study the effective theory of a generic class of hidden sectors where supersymmetry is broken together with an approximate -symmetry at low energy. The light spectrum contains the gravitino and the pseudo-Nambu-Goldstone boson of the -symmetry, the -axion. We derive new model-independent constraints on the -axion decay constant for -axion masses ranging from GeV to TeV, which are of relevance for hadron colliders, lepton colliders, and factories. The current bounds allow for the exciting possibility that the first sign of supersymmetry will be the -axion. We point out its most distinctive signals, providing a new experimental handle on the properties of the hidden sector and a solid motivation for searches of axionlike particles.
- Received 12 April 2017
DOI:https://doi.org/10.1103/PhysRevLett.119.141804
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
Published by the American Physical Society