fewagner/dm_datarelease

kinks

Closed this issue · 4 comments

resolve kinks in likelihood limits

Screenshot 2023-03-03 at 20 08 17

looks much better since ed789a8 but not resolved yet

Screenshot 2023-03-05 at 22 56 14

what we can try: take one of the problematic datasets and dm masses - try to reproduce the problem - check if its because of the best fit already (plot), or because of the exclusion fit

kinks look like this
thats data/limit/limit_all_0.txt
Screenshot 2023-03-05 at 22 58 03

I did another run with brenth, and more accepted tries for increasing the search interval (V3). Here I also tracked the parameters, and figured out that the kinks are appearing when the global fit prefers a high DM component over high background components. I try to fix it with using a Nelder Mead in V4.

resolved with dad688d

the problem was that the basinhopping optimizer sometimes prefers to push up the DM component instead of the background

using Nelder Mead everywhere fixed the issue

Screenshot 2023-03-07 at 16 37 29