DSL report

• Leszek Kosarzewski (Ohio State University)
• Daniel Brandenburg (Ohio State University)

- Discuss DAC closeout comments : https://indico.bnl.gov/event/26584/ - Discuss DSL transition Pre-TDR Assignments: - Sam: neutron efficiency - Tianhao: Simulation vs. CMS data, impact of tile uniformity - Maria: intro/overview of design optimization - UIUC: Updates to muon ID and muon plots - Leszek: updates to sampling fraction and geometry description. Update into plots to include neutrons / muons and mean energy for the tail catcher region - CTU (Sasha/alexander/Subadip): Upate plots similar to DAC presentation to show the position resolution (5x5, 10x10, 15x15) and the Delta Rxy distribution. - Yevhenia: nHCAL performance evaluation and tests I have a version of the pre-TDR with only the nHCAL that we can use to draft before pushing our updates to the official epic pre-TDR document: View only link: https://www.overleaf.com/read/srykwmdjtkpj#9fc320 During the meeting I can add emails for edit access. Current ePIC pre-TDR: https://zenodo.org/records/14328280

DSTC report

• Caroline Riedl (University of Illinois Urbana-Champaign)

UIUC group report

• Caroline Riedl (University of Illinois Urbana-Champaign)

OSU group report

• Leszek Kosarzewski (Ohio State University)
• Daniel Brandenburg (Ohio State University)
• Samuel Corey (The Ohio State University)
• Yevheniia Khyzhniak
• Maria Stefaniak (Ohio State University)

- Discuss CAEN Module and lab tests

CTU group report

• Alexandr Prozorov
• Subhadip Pal (Czech Technical University in Prague)
• Leszek Kosarzewski (Ohio State University)