summary:
Right now with the masterclass panel (#824), students can tag particles and get invariant mass values in a table. But the table
is just numbers , students can't really see the physics happening.
In tools like HYPATIA, students build up a histogram as they go through events. They tag particles, compute the mass, and it gets
added to a histogram. After 20-30 events you start seeing a peak around 91 GeV and that's when it clicks --- "oh that's the Z boson".
That moment doesn't happen with just a table of numbers.
The idea is to add a histogram panel (similar overlay style as the masterclass panel) that:
- Listens to invariant mass results as students compute them
- Fills a histogram bin each time
- Redraws live so students see the distribution building up
- Shows basic stats (entries, mean)
- Can export the data (CSV or image)
The cool part , jsroot (already a phoenix dependency, v7.9.1) has
createHistogram and draw/redraw APIs that we've never used. So this needs zero new dependencies.
This also connects to #826 (integration API) , the histogram panel would subscribe to the event bus (result-recorded events from the masterclass panel), which is a concrete proof that external tools can plug into phoenix through the bus.
Should be experiment-agnostic like the masterclass panel , ATLAS students histogram Z→ee/μμ masses, LHCb students could histogram D0→Kπ masses, same component different config.
This basically makes phoenix a complete replacement for standalone masterclass tools like HYPATIA --- the whole workflow (visualize
event → tag particles → compute mass → see histogram → discover
resonance) happens in one browser tab.
summary:
Right now with the masterclass panel (#824), students can tag particles and get invariant mass values in a table. But the table
is just numbers , students can't really see the physics happening.
In tools like HYPATIA, students build up a histogram as they go through events. They tag particles, compute the mass, and it gets
added to a histogram. After 20-30 events you start seeing a peak around 91 GeV and that's when it clicks --- "oh that's the Z boson".
That moment doesn't happen with just a table of numbers.
The idea is to add a histogram panel (similar overlay style as the masterclass panel) that:
The cool part , jsroot (already a phoenix dependency, v7.9.1) has
createHistogram and draw/redraw APIs that we've never used. So this needs zero new dependencies.
This also connects to #826 (integration API) , the histogram panel would subscribe to the event bus (result-recorded events from the masterclass panel), which is a concrete proof that external tools can plug into phoenix through the bus.
Should be experiment-agnostic like the masterclass panel , ATLAS students histogram Z→ee/μμ masses, LHCb students could histogram D0→Kπ masses, same component different config.
This basically makes phoenix a complete replacement for standalone masterclass tools like HYPATIA --- the whole workflow (visualize
event → tag particles → compute mass → see histogram → discover
resonance) happens in one browser tab.