sddm - Code for the self-destructing dark matter search in SNO

Age	Commit message (Collapse)	Author
2019-03-25	fix delta ray charge calculation	tlatorre
	Previously I was calculating the expected number of delta ray photons when integrating over the shower path, but since the delta rays are produced along the particle path and not further out like the shower photons, this wasn't correct. The normalization of the probability distribution for the photons produced along the path was also not handled correctly. This commit adds a new function called integrate_path_delta_ray() to compute the expected number of photons from delta rays hitting each PMT. Currently this means that the likelihood function for muons will be significantly slower than previously, but hopefully I can speed it up again in the future (for example by skipping the shower calculation which is negligible for lower energy muons).
2019-03-16	add GPLv3 license	tlatorre

2018-11-27	add rayleigh scattering	tlatorre
	This commit adds Rayleigh scattering to the likelihood function. The Rayleigh scattering lengths come from rsp_rayleigh.dat from SNOMAN which only includes photons which scattered +/- 10 ns around the prompt peak. The fraction of light which scatters is treated the same in the likelihood as reflected light, i.e. it is uniform across all the PMTs in the detector and the time PDF is assumed to be a constant for a fixed amount of time after the prompt peak.