https://hackerpaper.kaipfister.de/p/1403.4495/Collected HN comments and submissions linking this paper.enMon, 02 Nov 2026 11:16:22 GMThttps://news.ycombinator.com/item?id=36726203urn:hackerpapers:mention:1403.4495:36726203Fri, 14 Jul 2023 16:26:28 GMT<p>Apparently (eg. [1]) there would be a couple of different pathways available for WIMP annihilation, to a W⁺W⁻ boson pair, or to μ⁺μ⁻ muon pair, or a e⁺e⁻ electron-positron pair, so the immediate annihilation products would be charged non-dark matter particles which would either quickly decay or annihilate into photons or simply shed their energy via normal EM interactions. [1] P. Salati, 2014. Dark Matter Annihilation in the Universe. https://arxiv.org/abs/1403.4495</p><p><a href="https://hackerpaper.kaipfister.de/p/1403.4495/">Paper and discussion history</a>. A mention is not an endorsement.</p>astro-ph.HEhttps://news.ycombinator.com/item?id=28168520urn:hackerpapers:mention:1403.4495:28168520Fri, 13 Aug 2021 13:23:36 GMT<p>FTR, if you wondered what they meant by &quot;annihilation signals from the dark matter microhalo&quot;, apparently one of the theories for what makes up dark matter is WIMPs which are special particles that interact weakly with normal particles but can interact with each other and result in creation of other, better observable particles. The theory is that in the early universe, WIMPs were created spontaneously due to massive temperatures of the primordial plasma, but later as the universe expanded and cooled, this creation didn&#x27;t work. However, the WIMPs would still be able to react with each other…</p><p><a href="https://hackerpaper.kaipfister.de/p/1403.4495/">Paper and discussion history</a>. A mention is not an endorsement.</p>astro-ph.HE