FROM TH2F
constant
30.531648123164953+-0.4557392744842215
chi2/ndof = 20.282865042861737
plane
82.87874889732282+-2.334993690070619
invpt slope = -1.4073375769556264+-0.2105890157623457
theta slope = -39.55175558665259+-1.8331841490245089
chi2/ndof = 16.93604695670457
from tgraph2D
constant
49.53014358072468+-1.961989593187214
chi2/ndof = 596.6574903919025
plane
72.79633184319265+-9.25361153360662
invpt slope = 2.401615021839554+-0.8568423816978453
theta slope = -27.839996658757286+-8.382039586515464
chi2/ndof = 549.4006988680311