1 / 8

A (more) realistic HCAL Energy Reconstruction for SICBDST v232

A (more) realistic HCAL Energy Reconstruction for SICBDST v232. Overview. Current HCAL status Proposed modifications motivation input calibration For the future. Current Status. HCEL bank  all energy deposited in one cell, including plastic AND iron

lamar
Download Presentation

A (more) realistic HCAL Energy Reconstruction for SICBDST v232

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. A (more) realistic HCAL Energy Reconstruction for SICBDST v232 José OCARIZ, CERN

  2. Overview • Current HCAL status • Proposed modifications • motivation • input • calibration • For the future... José OCARIZ, CERN

  3. Current Status • HCEL bank  all energy deposited in one cell, including plastic AND iron • No simulation of light yield attenuation • outdated Z segmentation • Uses GEANT+GEISHA hadronic interface José OCARIZ, CERN

  4. Proposal for SICBDST V232 (I) • Use test-beam studies: • Plastic and fiber light yield (Dorokhov, Britvitch) • Standalone simulation (Ocariz) • Together, they provide a good simulation of (prototype) HCAL performances! • … but they are plugged-in at the GEANT (GUSTEP) level… • ...some minimal info on energy deposition might suffice for a reasonable description of attenuation… to be studied José OCARIZ, CERN

  5. Proposal for SICBDST V232 (II) • What can be done at the SICBDST level? • Count energy deposited in plastic • Recalibrate using  tracks • Modify HCEL bank: • HCEL$E  energy in plastic (calibrated) • HCEL$E1  energy in plastic (non calibrated) • HCEL$E2  total energy • HCEL$E3, HCEL$E4  spare José OCARIZ, CERN

  6. About calibration(I) • Total energy deposited in HCAL is about 70% of initial particle (for GEANT+GEISHA) • Energy in active medium is much smaller • Need to calibrate! • Use  clusters with completely readout 3x3 box around maximum • cut on ECAL activity • independent calibration for INNER and OUTER sections (to take into account a possible effect of different cluster size) José OCARIZ, CERN

  7. Outer HCAL: ~ 1.9 % Inner HCAL: ~ 1.8 % About calibration(II) José OCARIZ, CERN

  8. … looking ahead... • SICBDST V232: a more realistic HCAL energy reconstruction • committed • not definitive: Light yield attenuation simulation yet to be plugged-in • define a (minimal) set of extra variables (e.g. energy deposition barycenter in cell, some Z segmentation info) José OCARIZ, CERN

More Related