SM value using Reweighting
Dear Expert,
I generated two EFT sample: ttbar event using SMEFT@NLO_LO model (MadGraph version: MG5_aMC_v2_9_1_2) .
I used MadGraph to reweight the generated events with a different set of ctq8 and ctg as following :
1. Generate a sample with differents value of ctq8 using reweighting [all other operators are zero], 500k event
2. Generate another sample with different value of ctg using reweighting [all other operators are zero], 500k event
My question :
When I compute the value of the observable I used in my analysis, spin correlation ckk, for ctg=0, and ctq8=0, I got different results?
For instance :
ctq8=0 ckk : 0.329719 +/- 0.0042406 (stat)
ctg=0 ckk : 0.391155 +/- 0.00421376 (stat)
I think that the value of ckk for ctg_0 and ctq8_0 should be compatible within their stat error?
Thanks in advance
A.Tnourji
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