FROM TH2F
constant
34.94093035684331+-0.8119500214359832
chi2/ndof = 40.50578367979471
plane
141.95706683853322+-6.4849154437862575
invpt slope = 2.9077851336181197+-0.5038496199710772
theta slope = -88.7946709177074+-4.955800916184208
chi2/ndof = 34.24102826957457
from tgraph2D
constant
70.14372986698052+-7.015471861456049
chi2/ndof = 2903.793878701659
plane
97.74182149874721+-56.67248773924777
invpt slope = 3.646751870862018+-5.074999266089496
theta slope = -28.68504272839359+-47.975530087938296
chi2/ndof = 2968.0647092142963