News
What is new on the site, newest first. Each item links to the page it is about. For now the list holds updates to the site; research news will follow.
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WebDAQ: the LUNA data acquisition, with an in-browser demo and a guided tour.
Go to the pageReaction atlas: results from 2023 to 2026, among them a second Trojan Horse experiment on carbon fusion and neutron capture on niobium-94 at n_TOF, and a new open question on the calcium of the first stars.
Go to the pageNuclear data explorer: the measurements in EXFOR, the international library of nuclear experiments, linked to the reaction atlas, with the gap between the energies stars need and the lowest ones measured, and the levels of each nucleus.
Go to the pageGuided paths: short walks through the site, from a question (why does the Sun shine slowly? where does the sodium in salt come from? how do stars get from iron to lead?) to what we still don't know.
Go to the pageOpen questions: what the field still argues about, reaction by reaction, and what would settle it.
Go to the pageExercises: problems to solve with the atlas, the rate explorer and an evaluation, each with a worked solution.
Go to the pagePrivacy: what the site and its server record, and for how long. No cookies and no trackers.
Go to the pageRate curiosities: what would change if a single reaction ran twice as fast, in short sentences whose numbers come from the rate explorer's own calculations.
Go to the pageRate explorer: the rates of the pp chains, the CNO cycles and the NeNa and MgAl cycles plotted against temperature, how long a nucleus waits before each reaction, and what a burn does when one rate is changed. It runs in the browser.
Go to the pageSite search: press / or Ctrl-K (⌘-K on a Mac) on any page to find a reaction, a glossary term, a paper or a page.
The s-process: how stars make about half the nuclei heavier than iron, one neutron capture at a time, with the path drawn on the chart of nuclides and its branch points.
Go to the pageA glossary of the words the atlas uses, from Gamow window to reduced width, in plain language.
Go to the pageThe site in Italian: every page also exists under /it. The notes on R-matrix theory stay in English.
Go to the pageThe R-matrix evaluations can now run entirely in the browser: in the static build of this site AZURE2 is compiled to WebAssembly and calculates on the reader's own computer, with no server.
Go to the pageThe reaction atlas: the nuclear reactions that power stars and make the elements, on the chart of nuclides, each with how it has been measured and what is still uncertain.
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