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<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Quadrupole and octupole collectivity and cluster structures in neon isotopes · HackerPapers discussions</title><link>https://hackerpaper.kaipfister.de/p/1802.02873/</link><description>Collected HN comments and submissions linking this paper.</description><language>en</language><lastBuildDate>Mon, 02 Nov 2026 11:16:22 GMT</lastBuildDate><atom:link href="https://hackerpaper.kaipfister.de/p/1802.02873/feed.xml" rel="self" type="application/rss+xml" /><item><title>Quadrupole and octupole collectivity and cluster structures in neon isotopes — mentioned by mncharity</title><link>https://news.ycombinator.com/item?id=19267457</link><guid isPermaLink="false">urn:hackerpapers:mention:1802.02873:19267457</guid><pubDate>Wed, 27 Feb 2019 22:18:25 GMT</pubDate><description>&lt;p&gt;Not my field, so I&amp;#x27;ll leave others to answer. But there&amp;#x27;s also further clumping. In light nuclei, nucleons are clustered as 4alpha particles (two protons and two neutrons). Simulation has ground-state 8Beryllium mass density shaped like a dumbbell of two alphas. And ground-state 20Neon shaped like a 10 femtometer ball-and-stick old wine bottle.[1] With a triangle of alphas (like non-ground-state C), a forth making a tetrahedron (like non-ground-state O), and the fifth hanging further out on the opposite side. Research for an old project. For improving introductory material science in…&lt;/p&gt;&lt;p&gt;&lt;a href="https://hackerpaper.kaipfister.de/p/1802.02873/"&gt;Paper and discussion history&lt;/a&gt;. A mention is not an endorsement.&lt;/p&gt;</description><category>nucl-th</category></item></channel></rss>
