FROM TH2F
constant
14.396910229418387+-0.8704780972325225
chi2/ndof = 26.681318400819148
plane
35.901664010567835+-11.287635307704992
invpt slope = -16.440431282002713+-1.1537342242806774
theta slope = 18.077944114992587+-10.581908956919735
chi2/ndof = 16.819456723585134
from tgraph2D
constant
39.95714382084479+-5.769631414338319
chi2/ndof = 699.0615792312417
plane
18.562488097791043+-78.14191516517141
invpt slope = -8.37151015004073+-6.034153109396671
theta slope = 33.7218930261339+-73.41854862624102
chi2/ndof = 680.0201392251797