The anomaly in the cosmic-ray positron spectrum

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dc.creatorChung, C. H.
dc.creatorGast, H.
dc.creatorOlzem, J.
dc.creatorSchael, S.
dc.date2007-10-12
dc.date.accessioned2026-07-07T08:35:58Z
dc.date.available2026-07-07T08:35:58Z
dc.descriptionA recent analysis of cosmic-ray data from a space borne experiment by the AMS collaboration supports the observation of an excess in the cosmic-ray positron spectrum by previous balloon experiments. The combination of the various experimental data establishes a deviation from the expected background with a significance of more than four standard deviations. The observed change in the spectral index cannot be explained without introducing a new source of positrons. When interpreted within the MSSM a consistent description of the antiproton spectrum, the diffuse gamma-ray flux and the positron fraction is obtained which is compatible with all other experimental data, including recent WMAP data.
dc.descriptionSubmitted for the SUSY07 proceedings, 4 pages, PDFLaTeX, 4 pdf figures
dc.identifierhttps://arxiv.org/abs/0710.2428
dc.identifierhttp://arxiv.org/abs/0710.2428
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/139917
dc.subjectAstrophysics
dc.titleThe anomaly in the cosmic-ray positron spectrum
dc.typetext

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