FROM TH2F
constant
0.00802406453174171+-0.016928488807460392
chi2/ndof = 0.002371009440479765
plane
0.013255926008944902+-0.1836335558533231
invpt slope = 0.005111039794732641+-0.021350382701847345
theta slope = -0.009117221353981412+-0.16054717481253752
chi2/ndof = 0.00017459384913379273
from tgraph2D
constant
0.009235294789195983+-0.0008761119699305278
chi2/ndof = 2.4562309883342524e-05
plane
0.013301022089952952+-0.002349207535555754
invpt slope = 0.005117132251564989+-0.0002360470243269236
theta slope = -0.009087325318072234+-0.0020640104420016586
chi2/ndof = 1.497705154005179e-06