EP R&D Software Working Group Meeting

Wednesday 24 Jun 2020, 10:00 → 11:00 Europe/Zurich

Vidyo

Join Zoom Meeting
https://cern.zoom.us/j/95660661505

Meeting ID: 956 6066 1505
Password: rd7wp

Live Notes

Software R&D Working Meeting Minutes

Introduction

How to edit the website?

• Ask Jakob and Graeme to arrange access
• Or just send J&G an update

(Drupal is ok, but not the easiest tool to use)

HGCAL Reconstruction

TICL - plan is to make this an external/common library

Timing is a core part of the EDM here and all of the algorithms; both from the calorimeter itself or from external tracking software

For layer clusters, store energy, position and timing; can also store the individual recHits (with their contributing fractions)

Cellular Automata is the same algorithm as used for tracking (already ported to GPU)

More details on the validation tool, see HSF Workshop talk

Were able to get TICL to work with a different end-cap calorimeter in about 1/2 day

• Would like to increase interaction with other groups working in similar areas
• Series of open meetings to start after the summer

Is there dependency on the hexagonal shape?

• No, it just becomes a hit position (‘closeness’ can be configured to match the underlying geometry)

Is the plugin mechanism included in the library?

• The idea is to include it; at the moment this is from CMSSW
• Could also look at the DD4hep plugin? (Although CMS don’t use this, we think)

Tracking via tracksters - are these traditional algorithms (e.g. from Acts)?

• The algorithms are the same as for track seeding, e.g., could use a Kalman filter; however, there can be problems with combinatroics and the performance is not great - it’s also stateful, so that requires a lot of heavyweight branching (it was tried in the early days, but then abandoned)

10:00 → 10:10 Introduction

Speakers: Graeme A Stewart (CERN), Jakob Blomer (CERN)

Working Meeting Intro 2020-06-24.pdf

10:10 → 10:40 HGCAL Reconstruction

Speakers: Erica Brondolin (CERN), Felice Pantaleo (CERN), Marco Rovere (CERN)

20200624_Felice_EP_RD.pdf

10:40 → 11:00 Roundtable and Discussion