Closed slava77 closed 3 years ago
additionally, from standalone val in TTbar PU50 (left: older Cartesian -> CCS, middle: Curv-> CCS before this PR, right: fixed-up Curvilinear-> CCS with this PR)
nHits is back to the same distribution as expected; other distributions are mostly unchanged because once a few hits are added (as in the majority of the tracks) the fit mostly recovers the correct parameters.
while cross-checking the results of #324 I found a typo; this PR fixes the curvilinear to CCS Jacobian element that couples q/p with 1/pt. The impact of the mistake was a decrease in uncertainty of 1/pt by sinTheta^2 (cosLambda^2) in the input seed
http://uaf-10.t2.ucsd.edu/~slava77/figs/mic/mtv/10muHS_mk48b9f5b_sw5766e9f_vs_25bd4b9_v_mka3eddef-sw25bd4b9/
for built track initialStep:
orange is new/fixed