Preliminary Results on Non-Projective HCal Simulations This presentation will probably involve audience discussion, which will create action items. Use PowerPoint to keep track of these action items during your presentation In Slide Show, click on the right mouse button Select “Meeting Minder” Select the “Action Items” tab Type in action items as they come up Click OK to dismiss this box This will automatically create an Action Item slide at the end of your presentation with your points entered. Preliminary Results on Non-Projective HCal Simulations Dhiman Chakraborty, Guilherme Lima, Jeremy McCormick, Vishnu Zutshi NICADD / Northern Illinois University 11/29/2018 Guilherme Lima, DHCal Meeting

Guilherme Lima, DHCal Meeting Status Summary Last week overview, status and plans for short and medium term Today Non-projective Hcal geometry Geometry initialization Preliminary results … 11/29/2018 Guilherme Lima, DHCal Meeting

Why a non-projective HadCal? A projective geometry is easy to analyze (cal towers) easy to find cell neighbors, cones But it also needs many different cell sizes may have cells too big at outer layers cells may be too large at lower angles 11/29/2018 Guilherme Lima, DHCal Meeting

Why a non-projective HCal? Fabricating a small number of cell sizes is simpler, cheaper and maybe even better… Small cell sizes are nice for a digital calorimeter, but too many small cells may become a nightmare: Hot cells / dead cells Space for readout Cost per channel Simulations are helpful to adjust cell dimensions in order to maximize performance/cost ratio. 11/29/2018 Guilherme Lima, DHCal Meeting

First version of NP simulator Based on (projective) LCDG4 Fixed cell sizes (rectangular for now) User provides cell dimensions, and simulator makes slight adjusts (few %) for integral numbers of cells along z,  Only HCal for now, but plans for ECal 11/29/2018 Guilherme Lima, DHCal Meeting

Guilherme Lima, DHCal Meeting Preliminary tests Use single particles: Muons, pions and electrons Fixed directions in space Different energies (2,5,10,20,30,50 GeV) Absolute energy deposition Comparison with projective geometry Same energy deposition per layer Number of hit cells reasonably scales with inverse of cell area (pions) Complex physics events 11/29/2018 Guilherme Lima, DHCal Meeting

Energy in ECal absorber Estimate approx 8.7 MeV for a MIP # entries Energy (MeV) 11/29/2018 Guilherme Lima, DHCal Meeting

Guilherme Lima, DHCal Meeting Energy in Ecal sensors Estimate approx 0.2 MeV for a MIP # entries Energy (MeV) 11/29/2018 Guilherme Lima, DHCal Meeting

Energy in HCal absorber Estimated about 31 MeV for a MIP 10 GeV Muons 50 GeV pions 11/29/2018 Guilherme Lima, DHCal Meeting

Energy in HCal sensitive layers Estimated about 2.4 MeV for a MIP 11/29/2018 Guilherme Lima, DHCal Meeting

Guilherme Lima, DHCal Meeting Number of hits in ECal 11/29/2018 Guilherme Lima, DHCal Meeting

Guilherme Lima, DHCal Meeting Number of hits in HCal 11/29/2018 Guilherme Lima, DHCal Meeting

Comparison to LCDG4proj and GISMO 11/29/2018 Guilherme Lima, DHCal Meeting

Hit distributions per layer ECal HCal 11/29/2018 Guilherme Lima, DHCal Meeting

Last layers hit in each event 50 GeV pions 11/29/2018 Guilherme Lima, DHCal Meeting

Total energy per layer (comparison to LCDG4proj and GISMO) 50 GeV pions Energy (MeV) Layer 11/29/2018 Guilherme Lima, DHCal Meeting

Total energy (based on GISMO sampling fractions) 11/29/2018 Guilherme Lima, DHCal Meeting

Checking EM sampling fraction Based on GISMO sampling fractions (a reevaluation is needed!) 11/29/2018 Guilherme Lima, DHCal Meeting

Guilherme Lima, DHCal Meeting Conclusions JAS3 analysis classes available* for general use Preliminary results look very encouraging Projective vs. non-projective values for energy depositions per layer are in good agreement Sampling fractions need to be reevaluated Next steps include: replace SDJan03 for SDMar01 analyze complex physics events in NP geometry (Vishnu?) extend NP geometry into EMCal use hexagonal cells whatever else is necessary to certify NP simulation…(?) 11/29/2018 Guilherme Lima, DHCal Meeting