Project

General

Profile

Bug #1941

TKU px, py distributions dip

Added by Drielsma, François about 4 years ago.

Status:
Open
Priority:
Normal
Start date:
08 September 2017
Due date:
% Done:

0%

Estimated time:

Description

There still seem to be some issue when a pz selection is performed that appears to create a dip in the px, py distributions at low transverse momentum.

The plots diag_tkupx_comp.pdf and diag_tkupy_comp.pdf show that the dip only appears in the data and reconstructed MC. The truth underwent the same selection but does not exhibit the feature (all of the 2016-04_1.2 3mm data and simulation in those plots).

The plots diag_tkupx_data.pdf and diag_tkupy_data.pdf show that the dip only seem to appear when the pz = [135,145] cut is applied (all of the 2016-04_1.2 3mm data in those plots).

I loaded 08681 and recorded all the spillid/eventid of the TKU tracks that did not make cut and saved them in attachment:08681_pz_cut_failed.txt .


Files

diag_tkupx_comp.pdf (15.7 KB) diag_tkupx_comp.pdf TKU px dist data+MC Drielsma, François, 08 September 2017 14:55
diag_tkupy_comp.pdf (15.6 KB) diag_tkupy_comp.pdf TKU py dist data+MC Drielsma, François, 08 September 2017 14:55
diag_tkupx_data.pdf (18 KB) diag_tkupx_data.pdf TKU px dist cuts Drielsma, François, 08 September 2017 14:57
diag_tkupy_data.pdf (17.9 KB) diag_tkupy_data.pdf TKU py dist cuts Drielsma, François, 08 September 2017 14:57
08681_tku_pz_cut_failed.txt (2.13 MB) 08681_tku_pz_cut_failed.txt Drielsma, François, 08 September 2017 15:34

No data to display

Also available in: Atom PDF