51勛圖

Michel Lefebvre

Michel Lefebvre
Position
Professor of Physics and Astronomy
51勛圖
Contact
Office: Elliott 205A
250-721-7706
Credentials

BSc (Laval), Ph.D. (Cambridge)

Area of expertise

Experimental particle physics

Prof. Lefebvre's research focuses on the exploration of the laws of physics at the energy frontier through the study of proton-proton collisions recorded by the ATLAS detector at the Large Hadron Collider, CERN, Switzerland.

Following activities in the UA2 experiment at CERN's proton-antiproton collider, Prof. Lefebvre acted as founding spokesperson of the ATLAS Canada Collaboration in 1992.  He contributed to the development and construction of liquid argon electromagnetic and hadronic calorimetry, and led the construction at the 51勛圖 of related cryogenics components now operational on the ATLAS detector.  The excellent performance of the ATLAS electromagnetic calorimeter was key to the discovery of the Higgs boson in 2012.  His current interests include ATLAS energy measurement performance, precision electroweak measurements, Higgs boson properties, the search for Dark Matter, and improvements of the ATLAS detector for the high luminosity upgrades of the LHC.  He lead the 51勛圖 ATLAS group from 1992 to 2003, and again from 2015 to March 2018.  He held many responsibilities within the . He chaired the NSERC Subatomic Physics Evaluation Section in 2009-2010, was a member of the Board of Management of the Laboratory.  He is currently the UVic representative on the Science Council.  Prof. Lefebvre is a recipient of the 51勛圖 Craigdarroch Silver Medal for Research Excellence.

Prof. Lefebvre enjoys teaching undergraduate and graduate courses, and strives to convey the excitement and beauty of physics in his lectures.  He acted as Graduate Advisor in the Department of Physics and Astronomy from 2007 to 2010, and in 2022.  He is a recipient of the 51勛圖 Science Award for Teaching Excellence.

Subatomic Smash: The Quest for the Higgs Boson, public talk given by Prof. Lefebvre on April 9th 2013, one of UVic's 50th Anniversary Signature Events.

Research interests

  • Electroweak physics
  • Search for new physics at the LHC
  • Particle detectors

UVic expertise database

Current Graduate Students (* means co-supervision)
Ph.D.
  • *Joseph Kelly
M.Sc.
  • Adrienne Scott
Former Graduate Students (* means co-supervision)
Ph.D.
  • Dr. Kayla McLean (Ph.D. 2021)
  • Dr. Justin Chiu (Ph.D. 2020)
  • *Dr. Claire David (Ph.D. 2016)
  • Dr. Frank Berghaus (Ph.D. 2013)
  • Dr. Jean-Raphael Lessard (Ph.D. 2012)
  • *Dr. Anthony Hillairet (Ph.D. 2010)
  • Dr. Matt Dobbs (Ph.D. 2002)
  • Dr. Dugan O'Neil (Ph.D. 2000)
  • *Dr. John White (Ph.D. 1998)
M.Sc.
  • *Annabelle Czihaly (M.Sc. 2024)
  • Lucas Polson (M.Sc. 2021)
  • Samantha Taylor (M.Sc. 2021)
  • *Dr. Ewan Hill (M.Sc. 2011)
  • *Dr. Keith Edmonds (M.Sc. 2007)
  • Tamara Hughes (M.Sc. 2006)
  • Dr. Dominique Fortin (M.Sc. 2001)
  • Dr. Steven Robertson (M.Sc. 1994)
  • Dr. John White (M.Sc. 1993)
Current Postdoctoral Researcher and Research Associates
  • Dr. Clément Camincher
  • Dr. Kenji Hamano
  • Dr. Joseph Lambert
  • Dr. John McGowan
  • Dr. José Pretel
Former
  • Dr. Gerardo Vasquez
  • Dr. Christopher Anelli
  • Dr. Swagato Banerjee
  • Dr. Vikas Bansal
  • Dr. Frank Berghaus
  • Dr. Florian Bernlochner
  • Dr. Margret Fincke-Keeler
  • Dr. Naoko Kanaya
  • Dr. Ellis Kay
  • Dr. Emma Siân Kuwertz
  • Dr. Damir Lelas
  • Dr. Christopher Marino
  • Dr. Alex Martyniuck
  • Dr. Mathieu Plamondon
  • Dr. Rimsky Rojas
  • Dr. Carla Sbarra
  • Dr. Rolf Seuster
  • Dr. Monica Trovatelli
  • Dr. Manuela Venturi
  • Dr. Kai Voss
  • Dr. Monika Wielers

Other refereed publications:

  • Lucas Polson, Leonid Kurchaninov, Michel Lefebvre, Energy reconstruction in a liquid argon calorimeter cell using convolutional neural networks, , .
  • Chien-Yi Chen, Michel Lefebvre, Maxim Pospelov, Diphoton excess through dark mediators. JHEP07(2016)063.

  • J. Pinfold et al., Evaluation of the local hadronic calibration with combined beam-test data for the endcap and forward calorimeters of ATLAS in the pseudorapidity region region 2.5 < |η| < 4.0 , Nucl. Instr. And Meth. A693 (2012) 74-97.

  • J. Pinfold et al., Performance of the ATLAS liquid argon endcap calorimeter in the pseudorapidity region 2.5 < |η| < 4.0 in beam tests, Nucl. Instr. and Meth. A593 (2008) 324-342.

  • D.M. Gingrich et al. (ATLAS Hadronic End-cap Calorimeter Group), Construction, assembly and testing of the ATLAS hadronic end-cap calorimeter, Journal of Instrumentation, 2007 JINST 2 P05005.

  • D. Axen et al., Signal feedthroughs for the ATLAS barrel and endcap calorimeters, Review of Scientific Instruments, 76, 063306 (2005).

  • C. Cojocaru et al. (ATLAS Liquid Argon EMEC/HEC Collaboration), Hadronic Calibration of the ATLAS Liquid Argon End-Cap Calorimeter in the Pseudorapidity Region 1.6 < |η| < 1.8 in Beam Tests , Nucl. Instr. and Meth. A531 (2004) 481-514.

  • D. O'Neil, B. González-Piñeiro and M. Lefebvre, Measuring Vtb via s-channel Single Top at ATLAS , Journal of Physics G: Nucl. Part. Phys. 28 (2002) 2657-2667.

  • B. Dowler et al. (ATLAS Liquid Argon HEC Collaboration), Performance of the ATLAS Hadronic End-Cap Calorimeter in Beam Tests , Nucl. Instr. and Meth. A482 (2002) 94-124.

  • S. Akhmadalev et al. (ATLAS Collaboration, Calorimetry and Data Acquisition), Hadron Energy Reconstruction for the ATLAS Calorimetry in the Framework of the Non-parametrical Method , Nucl. Instr. and Meth. A480 (2002) 508-523.

  • M. Dobbs and M. Lefebvre, Unweighted Event Generation in Hadronic WZ Production of Order (alpha_s) , Physical Review D63, 053011, 2001. (hep-ph/0011206).

  • M. Lefebvre, R.K. Keeler, R. Sobie, and J. White, Propagation of Errors for Matrix Inversion , Nucl. Instr. and Meth. A451 (2000), 520-528. (hep-ex/9909031).

  • S. Akhmadalev et al. (ATLAS Collaboration), Results from a New Combined Test of an Electromagnetic Liquid Argon Calorimeter with a Hadronic Scintillating-tile Calorimeter , Nucl. Instr. and Meth. A449 (2000), 461-477.

  • R.A. Davis et al. (RD3 Collaboration), Test Beam Results of a Stereo Preshower Integrated in the Liquid Argon Accordion Calorimeter , Nucl. Instr. and Meth. A411 (1998) 313-329.

  • D.M. Gingrich et al. (RD3 Collaboration), Performance of an Endcap Prototype of the ATLAS Accordion Electromagnetic Calorimeter , Nucl. Instr. and Meth. A389 (1997) 398-408.

  • Z. Ajaltouni et al. (ATLAS Collaboration, Calorimetry and Data Acquisition), Results from a Combined Test of an Electromagnetic Liquid Argon Calorimeter with a Hadronic Scintillating-Tile Calorimeter , Nucl. Instr. and Meth. A387 (1997) 333-351.

  • D.M. Gingrich et al. (RD3 Collaboration), Construction and Test of a Fine-Grained Liquid Argon Preshower Prototype , Nucl. Instr. and Meth. A385 (1997) 47-57.

  • D.M. Gingrich et al. (RD3 Collaboration), Performance of a Large Scale Prototype of the ATLAS Accordion Electromagnetic Calorimeter , Nucl. Instr. and Meth. A364 (1995) 290-306.

  • D.M. Gingrich et al. (RD3 Collaboration), Performance of a Liquid Argon Accordion Hadronic Calorimeter Prototype , Nucl. Instr. and Meth. A355 (1995) 295-307.

  • A. Cravero et al. (RD3 Collaboration), Performance of the Liquid Argon Electromagnetic and Hadronic Accordion Calorimeter for the LHC , Nucl. Instr. and Meth. A344 (1994) 39-46.

  • J. Alitti et al. (UA2 Collaboration), A Search for New Intermediate Vector Bosons and Excited Quarks Decaying to Two-Jets at the CERN PPbar Collider , Nucl. Phys. B400 (1993) 3-22.

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