Photinos from cosmic sources | Nature

ABSTRACT In supersymmetric (SUSY) theories1, the photino is the fermion partner of the photon and is expected to be the lightest stable particle. Despite many discussions of the possible

production of photinos, and other supersymmetric particles, at existing and proposed accelerators2, so far, experiments have only set limits3,4. We propose here that photinos are produced by

sources of ultra-high-energy cosmic rays. We specifically consider Cygnus X-3, which is a powerful source of neutral particles up to 104 TeV (refs 5–8). These are usually assumed to be γ

rays, but there is no direct evidence for this, and shower5,6 and underground9,10 experiments suggest that there may be another component present. Here we estimate that a photino flux of the

order of 10−14 cm−2 s−1 above 10 TeV is possible from a source such as Cyg X-3, under certain conditions, and consider the feasibility of detecting these photinos. Access through your

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Open access 31 August 2024 DIRECT LIMITS FOR SCALAR FIELD DARK MATTER FROM A GRAVITATIONAL-WAVE DETECTOR Article Open access 15 December 2021 REFERENCES * Nanopoulos, D. V. &

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  * Ellis, J. & Kowalski, H. CERN-TH.4126/85 (1985). Download references AUTHOR INFORMATION AUTHORS AND AFFILIATIONS * Department of Physics and Astronomy, University of Hawaii,

Honolulu, Hawaii, 96822, USA V. J. Stenger Authors * V. J. Stenger View author publications You can also search for this author inPubMed Google Scholar RIGHTS AND PERMISSIONS Reprints and

permissions ABOUT THIS ARTICLE CITE THIS ARTICLE Stenger, V. Photinos from cosmic sources. _Nature_ 317, 411–413 (1985). https://doi.org/10.1038/317411a0 Download citation * Received: 12

April 1985 * Accepted: 25 July 1985 * Issue Date: 03 October 1985 * DOI: https://doi.org/10.1038/317411a0 SHARE THIS ARTICLE Anyone you share the following link with will be able to read

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