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ERC

SUSYBREAKING Report Summary

Project ID: 307605
Funded under: FP7-IDEAS-ERC
Country: United Kingdom

Final Report Summary - SUSYBREAKING (Supersymmetry Breaking in String Theory)

The project developed novel connections between string theory accounts of the early universe and X-ray astrophysical phenomena in clusters of galaxies. We developed new search strategies for axions - a type of conjectured particle that often occurs in string theory. We showed that string theory axions offer a explanation for a long-standing excess in the softest X-rays in the spectrum of galaxy clusters. By constraining spectral modulation in Active Galactic Nuclei, we placed the strongest bounds yet on the existence of axions and also found a possible candidate signature of dark matter, involving an absorption line at 3.54 keV from the central Active Galactic Nucleus of the Perseus galaxy cluster.

Reported by

THE CHANCELLOR, MASTERS AND SCHOLARS OF THE UNIVERSITY OF OXFORD
United Kingdom
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