Private:Student Projects

Project 1

PDF for dark scalar boson       (Click "Expand" to the right for more details -->):

• Determine the Probability Density Function (PDF) of the dark scalar gauge boson, S, for the process gamma proton -> eta + proton, eta -> S + pi0, S -> gamma gamma. Since the hypothetical S mass is unknown, the PDF has to be determined for all masses between ~ a few MeV/c^2 and ~ 420 MeV/c^2 scannable by JEF. This can be done in 3 steps:

1. Determine PDF for fixed masses from histograms I will provide
2. Parametrize the PDF vs mass and possibly vs incident photon-beam energy
3. Toy Monte Carlo simulation study to show that the model is not introducing biases for our observables#:
   

Project 2

Island Algorithm       (Click "Expand" to the right for more details -->):

• Use Simon's and Igal's work to test the GAMS Island algorithm. Steps:

1. Grab the farm version (also exists on a GitHub branch: https://github.com/JeffersonLab/halld_recon/tree/FCALIsland)
2. Use Igal's environment and build scripts.
3. Use factory flag/tag to change clustering algorithms on the command line (or in config file): DEFTAG:DFCALCluster=Island
4. Merge/convert with Jon's code.
5. Run photon guns through MCWRAPPER, to see single photon, and two-photon hits.
6. Check upstream conversions in TOF/DIRC.
7. Check average no of reconstructed clusters. Extract 'resolving power' of FCAL-I and FCAL-II eventually.
8. Stitch boundary between insert and outer blocks.
9. Vaildate with data? Use omega skims for FCAL-II / COMCAL is subtends too small of an angle