番茄社区

Dean Karlen

Dean Karlen
Position
R.M. Pearce Professor of Physics
番茄社区 and TRIUMF
Contact
Office: Elliott 217
250-721-6585
Credentials

B.Sc. (U Alberta), PhD (Stanford)

Area of expertise

Experimental particle physics

Prof. Karlen has participated in particle physics experiments around the world. Beginning in the 1980s with the Mark-II experiment at SLAC, USA, and then in the 1990s with the OPAL experiment at CERN, Switzerland, he studied aspects of the standard model of particle physics with high energy electron-positron collisions. In the early 2000s, he helped lead the effort to develop and demonstrate the performance of a new type of precision detector, known as a micropattern Time Projection Chamber, for a future high energy linear electron-positron collider. He then led the project to incorporate this technology into the long baseline neutrino experiment, T2K in Japan, where three large volume detectors have been operating in the underground near detector facility since 2009. Prof. Karlen is the principle investigator for projects funded by the Canadian Foundation for Innovation and Provincial governments to build a superconducting electron accelerator and expand isotope production capabilities at TRIUMF, as part of the ARIEL project. From 2011-2017 he was director of the Victoria Subatomic Physics and Accelerator Research Centre ().

Prior to coming to the 番茄社区 and TRIUMF in 2002, Prof. Karlen was a professor in the Department of Physics at Carleton University, in Ottawa.

In this Faces of UVic Research video, Dean Karlen explains the nature of neutrino particles and why it is important to study them.

Research interests

  • Electroweak physics
  • Neutrino physics
  • Detector development
  • Accelerator development

Current projects

Current graduate students
  • Joseph Adegun (PhD)
  • Marla Cervantes (PhD)
  • Kyle Gao (MSc)
  • Paul Jung (MSc)
  • Purvaja Karthikeyan (PhD)
  • Spencer Kiy (MSc)
  • Fernando Maldonado (PhD)
  • Olivier Shelbaya (PhD)
  • Muhammad Usman (MSc)
Graduated students (UVic)
  • Jason Abernathy (MSc)
  • Casey Bojechko (PhD)
  • Marla Cervantes (MSc)
  • Kyle Fransham (MSc)
  • Andre Gaudin (MSc)
  • Fernando Maldonado (MSc)
  • Jordan Myslik (PhD)
  • Gabe Rosenbaum (MSc)
  • Nicolas Savard (MSc)
  • Doug Storey (MSc, PhD)
  • The TRIUMF Neutrino Program - T2K  Invited presentation at the TRIUMF 50th Anniversary Science Symposium, July 17, 2018
  • Latest results from the T2K neutrino experiment  Presentation at the 7th International Conference on New Frontiers in Physics, Crete, July 12, 2018
  •   Colloquim at the University of Oregon, June 5, 2014.
  •   Invited presentation at the NW-APS Meeting, Oregon State University, October 21, 2011.
  •   Colloquim at the 番茄社区, September 14, 2011.
  •   Invited presentation at the Physics in Collision Conference, Vancouver, August 31, 2011.
  •  Invited lectures at the Lake Louise Winter Institute, Lake Louise, February 15-16, 2010.
  •  Invited presentation at the Winter Nuclear and Particle Physics Conference, Banff, February 14, 2010.
  •  Presentation to the NSERC Subatomic Physics GSC, Victoria, October 26, 2009.
  •  Presentation to the JPARC Program Advisory Committee, KEK, Japan, July 18, 2009.
  •  Presentation to the T2K collaboration, KEK, Japan, July 10, 2009.
  •  A presentation at the Canada-Japan Particle Accelerator Science Symposium, Embassy of Canada, Tokyo, Japan, July 7, 2009.
  •  A presentation at Technology and Instrumentation in Particle Physics conference, Tsukuba, Japan, March 13, 2009.
  •  A presentation at the CFI review, Toronto, February 16, 2009.
  •  A presentation at the NSERC review, TRIUMF, December 8, 2008.
  •  An invited presentation at the TRIUMF-GSI workshop, April 29, 2008.
  •  A presentation at the NSERC review, TRIUMF, December 16, 2007.
  •  An invited plenary talk at the ALCCPG07 workshop, Fermilab, October 24, 2007.
  •  A presentation at the TRIUMF Board of Management Meeting, September 14, 2007.
  •  A presentation LCWS07 meeting, Hamburg, June 2, 2007.
  •  A presentation at the TRIUMF ACOT meeting, May 12, 2007.
  •  An invited talk (Joint Experimental-Theoretical Seminar), Fermilab, January 19, 2007.
  •  A presentation at the NSERC review, TRIUMF, January 8, 2007.
  •  An invited talk at the  April 7, 2006.
  •  Presentation to TPC technology recommendation panel, KEK, January 16, 2006.
  •  An invited talk at the NuInt05 conference, Okayama, Japan, September 27, 2005.
  •  A presentation at the Snowmass Linear Collider Workshop, Snowmass CO, August 18, 2005.
  •  Plenary talk at the Snowmass Linear Collider Workshop, Snowmass CO, August 15, 2005.
  •  A presentation at the IPP Town Hall Meeting, TRIUMF, June 4, 2005.
  •  An invited talk at the APS NW section meeting, Victoria, May 13, 2005.
  •  An invited talk at the Berkeley TPC R&D workshop, March 24, 2005.
  •  A talk at the International Linear Collider Workshop, Stanford, California, March 21, 2005.
  •  A presentation at the T2K collaboration meeting at KEK, Japan, March 11, 2005.
  •  A talk at the LC TPC workshop, LAL-Orsay, Paris, January 12, 2005.
  •  A presentation at the T2K near detector meeting, Rome, December 7, 2004.
  •  An invited talk given Lawrence Berkeley National Laboratory, November 4, 2004.
    • Also given as a seminar at Carleton University on November 11, 2004.
  •  A talk given at the ECFA Durham Linear Collider Workshop, September 3, 2004.
  •  A talk given at the ECFA Durham Linear Collider Workshop, September 3, 2004.
  •  A talk given at the 3rd International Workshop on Nuclear and Particle Physics at J-PARC (Neutrino Session) at KEK, Japan on August 25, 2004.
  •  A talk given at the T2K ND280m meeting at KEK (Japan) on August 22, 2004.
  •  A talk given at the annual CAP congress in Winnipeg, June 14, 2004.
  •  A talk given at the IPP AGM (and DNP business meeting) in Winnipeg, June 13 (and 15), 2004.
  •  A talk given at the IPP AGM in Winnipeg, June 13, 2004.
  •  A talk given at the  in Paris, France, April 19-23.
  •  A talk given at the  on January 7, 2004.
  •  A talk given at the  (Portland, Oregon) on October 22, 2003.
  •  An invited talk given at the (LBNL) on October 18, 2003.
  • TPC R&D in Canada () A talk given at the Cornell Linear Collider Workshop, July 2003.
  •  A talk given at the 2003 CAP congress in Charlottetown, PEI, June 2003.
  •  A talk given at the DESY/ECFA workshop in Amsterdam in April 2003.
  •  A seminar given at the 番茄社区 on March 7,2003.
  •  An invited talk given at the 2003 Western Regional Nuclear and Particle Physics Conference (Lake Louise) on February 16, 2003.
  •  A talk given at the  (UTA) on January 9, 2003.
  •  A talk given at the (Prague) in November 2002.
  •  A presentation at the TRIUMF 5 year plan townhall meeting on September 21, 2002.
  •  A plenary talk given at the  (Jeju Island, Korea) on August 26, 2002.
  •  A talk given at the  (Jeju Island, Korea) on August 26, 2002.
  •  A talk given at the (University California Santa Cruz) on June 2002.
  •  A talk given at the (University California Santa Cruz) on June 2002.
  •  A talk given at the  (St. Malo France) on April 2002.
  •  A talk given at the  (Durham University) on March 19, 2002.
  •  A talk given at the RHIC detector workshop (Brookhaven National Lab) on November 14, 2001.
  •  A colloquium given at the 番茄社区 in September, 2001.
    •  for animations
  •  A talk given at the APS Snowmass 2001 Summer Study (Snowmass CO) on July 14, 2001.
  • . A talk given at CAP congress (番茄社区) on June 18, 2001.
  •  A talk given at the (Fermilab) on October 26, 2000.
  • . A talk given at the IPP forward planning meeting (York University) on June 3, 2000.
  •  A seminar given at Lawrence Berkeley National Laboratory on February 24, 2000.

 (all publications)

Selected Publications:

Neutrino physics

K. Abe, et al., Precise Measurement of the Neutrino Mixing Parameter θ23 from Muon Neutrino Disappearance in an Off-axis Beam, Phys. Rev. Lett. 112, 181801 (2014).

K. Abe, et al., Observation of Electron Neutrino Appearance in a Muon Neutrino Beam,Phys. Rev. Lett. 112, 061802 (2014).

K. Abe, et al., Measurement of Neutrino Oscillation Parameters from Muon Neutrino Disappearance with an Off-Axis Beam , Phys. Rev. Lett. 111, 211803 (2012).

K. Abe, et al., First muon-neutrino disappearance study with an off-axis beam, Phys. Rev. D85, 031103(R) (2012).

K. Abe, et al., Indication of Electron Neutrino Appearance from an Accelerator-produced Off-axis Muon Neutrino Beam, Phys. Rev. Lett. 107, 041801 (2011).

D. Karlen, , Proceedings of 2011 Physics in Collision Conference, Vancouver, August 2011.

D. Karlen, The Number of Light Neutrino Types from Collider Experiments, in Review of Particle Physics, .

Time Projection Chambers

D. Karlen et al., TPC Performance in Magnetic Fields with GEM and Pad Readout, Nuclear Instruments and Methods, A555 (2005) 80-92.

D. Karlen, Time Projection Chambers, in Review of Particle Physics, .

N. Abgrall, et al., Time Projection Chambers for the T2K experiment, Nucl.Instrum.Meth. A637 (2011) 25-46.

2018-19
  • Physics 342: Computer Modeling and Analysis
  • Physics 515: Data Analysis Techniques

The websites for these courses are hosted on .

Highlights of research career
1987 Published first single author paper, on a quantum electrodynamics calculation and simulation. It has received over 130 citations.
1989-2000 Leading expert for OPAL Vertex Detector operating at the CERN LEP collider.
1990-91 Coordinator of physics analyses for the OPAL collaboration.
1991 Primary author on the first publication of the direct determination of the number of neutrino types.
1995 Primary author on the first publication demonstrating a significant difference between baryon and meson lifetimes of hadrons containing the b-quark.
1998 Invited plenary speaker on “Experimental Status of the Standard Model” at the International Conference on High Energy Physics, the largest conference in the field, held every 2 years.
1999- Initiated Canadian participation in planning for the International Linear Collider, receiving NSERC funds to support physicists across Canada. The ILC is among the highest priority projects in the Canadian particle physics long range plan.
2000 Received Research Achievement Award at Carleton University.
2002 Accepted appointment as the R.M. Pearce Chair at the 番茄社区
2003 Joined the T2K collaboration, an international experiment based in Japan designed to make the most precise measurements of neutrino oscillations.
2003 Completed the first demonstration of a new type of particle detector in a magnetic field – a micropattern time projection chamber. Lead author of 2005 publication.
2004 Proposed and led the incorporation of micropattern time projection chambers as a key element of the T2K experiment. In order to operate the detectors, a 600 ton magnet from CERN has been redeployed to Japan for the experiment.
2005- Successfully completed a large scale prototype T2K time projection chamber.
2006- Received full capital funding for over $1M from NSERC for the T2K time projection chambers. Leads the international collaboration to build the detectors.
2007 Named to Thomson Scientific’s ISI Highly Cited Index - only 300 physicists worldwide are included.
2007- The three large micropattern time projection chambers for T2K are completed at TRIUMF. Detectors successfully operated in test beam facilities at TRIUMF. Detectors installed in underground facility in Japan in Fall 2009. Ongoing project leader.
2008- Principle Investigator for the proposal to the Canadian Foundation for Innovation to build a superconducting electron accelerator at TRIUMF. The proposal includes 29 researchers from 13 Universities across Canada, and is the cornerstone for the next Five Year Plan of the TRIUMF laboratory. The machine will produce isotopes for nuclear and materials science and demonstrate a new way to produce medical isotopes. The total project cost exceeds $50M. CFI announced project approval in June 2009.
2009-2011 Experimental operations coordinator for the T2K experiment (> 300 physicists).
2015-2016 Chair of the 2017-2021 Long Range Plan committee for Subatomic Physics research in Canada