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Hohlmann Research Group

Group Info


  • Marcus Hohlmann

  • Keith Gallagher (associated CS faculty)

  • Debasis Mitra (associated CS faculty)

  • Stefano Colafranceschi (guest research prof.)

Post-doctoral Research Associates (current and former)

  • Dr. Stefano Colafranceschi (2015-2018), CMS GEM upgrade

  • Dr. Aiwu Zhang (2013-16), GEM R&D for EIC

  • Dr. Kondo Gnanvo (2007-11), GEM muon tomography

Graduate Students (all Physics)

  • Ph.D. students:
    • Stephen Butalla
    • Mehdi Rahmani
  • M.S. students:
    • Matthew Bomberger
    • Jerry Collins

Undergraduates (P/SS and CS) 

  • Jacob Chesslo, EIC GEM construction & physics sim.
  • Devon Madden, GEM hardware for flight and webmaster
  • Devkumar Roy, CMS & EIC GEMs
  • Thomas Walker, Quarknet & Muon Tomography
  • Michael Werbiskis, EIC simulations
  • Joey Weatherwax, uRWELL hardware
  • Samantha Wohlstadter, Grid Computing

Our HEP Group (2018), from left to right: Noah, Sarah, Angelo, Miguel, Samantha,

Tommy, Jerry, Akshath, Zach, Stephen, Devon, Michael, Ryan, Matt, Jacqui, Mehdi,

and Dr. Hohlmann.

Our CMS GEM Assembly Team (2017)

Our HEP group (2009)


Group Members




Marcus Hohlmann
(321) 674-7275  
Research Associates    
Stefano Colafranceschi  
Graduate Students    
Stephen Butalla  
Jerry Collins


Medhi Rahmani  


Sarah Arends  
Christopher Bracci  
Matthew Bomberger  
Riley Carlson  
Jacob Chesslo  
John Hammond  
Angelo Lucciola  
Devon Madden  
Jacquelyne Miksanek  
Zachary Paul  
Noah Pitts  
Michael  Werbiskis  
Samantha Wohlstadter  
Ryan Wojtyla  


Group Forms

Trip Approval

Expense Report

Reimbursement Request

Student Research Volunteer Form

Machine Shop Training

Shipping Form

Spreadsheet template for requesting letters of recommendation from Dr. Hohlmann