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| 1 | +--- |
| 2 | +title: MCnet/LHAPDF - online dashboard and data-visualisation for parton density functions |
| 3 | +layout: gsoc_proposal |
| 4 | +project: MCnet |
| 5 | +year: 2024 |
| 6 | +organization: |
| 7 | + - UofGlasgow |
| 8 | +difficulty: medium |
| 9 | +duration: 175 |
| 10 | +mentor_avail: June-October |
| 11 | +--- |
| 12 | + |
| 13 | +# Description |
| 14 | + |
| 15 | +The Large Hadron Collider smashes protons into each other at the highest |
| 16 | +energies humanity has ever engineered. Protons are a very convenient type of |
| 17 | +particle for our high-energy beams : they are plentiful, and they don't lose |
| 18 | +(lots of) energy like electrons do when accelerated around the LHC ring. But |
| 19 | +they are not *fundamental* particles: they are made up of a tightly bound |
| 20 | +collection of smaller particles, and to make the most out of LHC experiments we |
| 21 | +need to understand both what we do and don't know about the internal structure |
| 22 | +of the proton that these objects induce. We encode this through so-called parton |
| 23 | +density functions, or PDFs. |
| 24 | + |
| 25 | +The [LHAPDF](https://lhapdf.hepforge.org) C++ library, wrapped with a |
| 26 | +Python interface, is the LHC's standard system for supplying PDF data |
| 27 | +to both experiments and theory calculations. Over 1000 sets of PDF fits |
| 28 | +are available in the LHAPDF data collection. |
| 29 | + |
| 30 | +## Task ideas |
| 31 | + |
| 32 | +This project will build on the LHAPDF test suite to report the current status |
| 33 | +of PDF data files and validation, and allow online exploration, comparison |
| 34 | +and plotting of PDF functions. |
| 35 | + |
| 36 | + |
| 37 | +## Expected results and milestones |
| 38 | + |
| 39 | + * Familiarise with the LHAPDF framework from interface to calculation components; |
| 40 | + * Familiarise with current LHAPDF CI and regression tests; |
| 41 | + * Design and present a Web dashboard of PDF datasets and their validation status; |
| 42 | + * Add a live PDF plotting tool to the Web interface, including 1D and 2D |
| 43 | + comparisons of PDF functions. |
| 44 | + |
| 45 | +## Requirements |
| 46 | + |
| 47 | + * Python |
| 48 | + * Web coding and visualisation libraries |
| 49 | + * CI testing |
| 50 | + * git |
| 51 | + |
| 52 | + |
| 53 | +## Mentors |
| 54 | + |
| 55 | + * **[Andy Buckley ](mailto:[email protected])** |
| 56 | + |
| 57 | + |
| 58 | +## Links |
| 59 | + |
| 60 | + * [LHAPDF](https://lhapdf.hepforge.org) |
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