Skip to content

Include line Hlt1HeavyIonPbSMOGUPCMB for ion data taking

Lidia Carcedo Salgadorequested to merge
lcarcedo/hlt1-pbsmog2-upc into 2025-patches

Aims at including a line for UPC in PbSMOG2, Hlt1HeavyIonPbSMOGUPCMB, based on Hlt1HeavyIonPbPbUPCMB. This MR goes with MooreMR!5274

We have tested the rates over MEP files from 2024 PbAr and PbNe data taking and can be consulted in the attached figure. They correspond to a prescale=1.0.

  • Ar rates correspond to run number 310518 and Ne to run number 310892
  • The rates have been tested for different cuts

Screenshot 2025-06-04 at 11.40.18.png

The base Hlt1HeavyIonPbPbUPCMB line applies a cut on maximum ECAL energy. For our line, we decided to apply the restriction on the maximum number of VELO tracks, to make the line more general for different systems and so we apply the cuts from row 3 in the table, where we don't apply the max_ecal_e cut.

For those cuts, the screenshots bellow show the Allen output:

  • Argon

Screenshot 2025-06-03 at 18.33.47.png

  • Neon

Screenshot 2025-06-03 at 19.01.03.png

For more details, see "HLT1 line for UPC processes in Lead-SMOG and first look to 2024 data" contribution in 04/06/2024 IFT meeting

We would like to target a release for the oxygen run so we can test already the line.

Edited by Lidia Carcedo Salgado

Merge request reports