Joseph Izen

Professor - Physics
Tags: Physics

Professional Preparation

Ph.D. - Physics
Harvard University - 1982
A.M. - Physics
Harvard University - 1978
B.S. - Physics & Mathematics
The Cooper Union - 1977

Research Areas

Research Interests
  •  Proton collisions produced at CERN's Large Hadron Collider (LHC)
  •  Higgs Boson
  •  Search for dark matter and dark gauge bosons
  •  Pixel and scilicon strip detectors for charged-particle tracking
  •  Flavor physics at electron-positron colliders


Measurement of differential cross sections of isolated-photon plus heavy-flavour jet production in pp collisions at s=8 TeV using the ATLAS detector 2018 - Journal Article
Search for an invisibly decaying Higgs boson or dark matter candidates produced in association with a Z boson in pp collisions at s=13 TeV with the ATLAS detector 2018 - Journal Article
Search for diboson resonances with boson-tagged jets in pp collisions at s=13 TeV with the ATLAS detector 2018 - Journal Article
Search for dark matter in association with a Higgs boson decaying to b-quarks in pp collisions at s=13 TeV with the ATLAS detector 2017 - Journal Article
Search for direct top squark pair production in events with a Higgs or Z boson, and missing transverse momentum in √s=13 TeV pp collisions with the ATLAS detector 2017 - Journal Article
Search for heavy resonances decaying to a W or Z boson and a Higgs boson in the qq¯(′)bb¯ final state in pp collisions at s=13 TeV with the ATLAS detector 2017 - Journal Article
Search for heavy resonances decaying to a Z boson and a photon in pp collisions at s=13 TeV with the ATLAS detector 2017 - Journal Article
Search for lepton-flavour-violating decays of the Higgs and Z bosons with the ATLAS detector 2017 - Journal Article
Search for new high-mass phenomena in the dilepton final state using 36 fb−1of proton-proton collision data at √s=13 TeV with the ATLAS detector 2017 - Journal Article
Search for new phenomena in a lepton plus high jet multiplicity final state with the ATLAS experiment using √s=13 TeV proton-proton collision data 2017 - Journal Article


University of Texas at Dallas [1999–Present]
Visiting Associate Professor
Colorado State University [1994–1997]
Associate Professor
University of Texas at Dallas [1994–1999]
Assistant Professor
University of Texas at Dallas [1991–1994]
Assistant Professor
University of Illinois at Urbana-Champaign [1986–1991]
Project Associate
University of Wisconsin at Madison [1982–1985]
Research Assistant
Harvard University [1977–1982]


UT System Regents’ Oustanding Teaching Award - [2012]

Additional Information

Professional Service Activities
Service to the University
  •  Faculty Senate (2007-2010, 2011-2013, 2014-2022)
  •  Academic Council (2007-2008, 2016-2021)
  •  GEMS Math and Science Education Council (2008-2010)
  Service to the School of Natural Sciences and Mathematics
  •  Chair, Advisory Committee (the “shepherd”) during the design and construction of the UTD 
  •  Science Learning Center building (2007-2010)
  Service to the Physics Department
  •  Physics Undergraduate Curriculum Committee (Chair; 2004-2010, member, 2011-present)
  •  Physics Graduate Curriculum Committee (2004-2010)
  •  Physics Department liason to the Texas Astronomical Society (2005-2010)
  •  “On call” to meet with prospective Physics majors and their parents (2006-2010, 2011-present)
  Activities with Student Organizations
  •  Faculty adviser, Comet Hockey Club (2001-Spring 2010)
  •  Co-Faculty adviser, Women in Physics (2007-Spring 2010)
  •  Faculty Adviser, Graduate Students in Physics (2018-Present)
  •  Faculty Adviser, UTD Contracorners (2019-Present)
  Service External to the University
  •  Grant Reviewer, Department of Energy, Division of High Energy Physics
  •  Publication Referee, Physical Review/Physical Review Letters
  •  ATLAS Collaboration Board
  •  ATLAS Pixel Institutional Board
  •  BABAR Collaboration Council
Dr. Izen is an high energy particle physics experimentalist exploring high-energy proton collisions produced at CERN's Large Hadron collider and electron-positron collisions at the Stanford Linear Accelerator Center (SLAC) . He is Principal Investigator of a Department of Energy grant supporting the UT Dallas' High Energy Physics Group work on the ATLAS and BaBar experiments.
  •  Henri D. Dickinson Fund Prize, best record of B.S. recipients, Cooper Union, 1977
  •  Cooper Union Alumni Association Award, 1977
  •  Eli Lilly Teaching Fellow, 1987-1988
  •  National Science Foundation – Center for Global Partnership Fellow, 1997-1998
  •  University of Texas Regents’ Outstanding Teaching Award, 2012
  •  CERN Scientific Associate, 2013-2014

News Articles

Angels Lecture to Separate Physics from Fiction
Its plot centers on a secret society’s mission to destroy the Vatican using a small amount of antimatter. Author Dan Brown’s Angels & Demons novel is a work of fiction set in the all-too-real setting of the Large Hadron Collider (LHC) at the European particle physics laboratory CERN, before the action moves to the Vatican City and Rome. The best-selling novel was adapted for celluloid by director Ron Howard and makes its big screen debut May 15. Tom Hanks portrays world-renowned Harvard symbologist Robert Langdon, and parts of the film were actually filmed at the LHC. Though a compelling page-turner and brilliant blend of science and fiction, elementary particle physicists readily spot when the novel departs from real science and the realm of the possible to the unreal possibility of an antimatter catastrophe, courtesy of the minuscule amounts generated at CERN. “Antimatter is real, unlike Kryptonite,” said Dr. Joseph M. Izen, a professor of physics. “There actually was a dedicated experiment at CERN to trap antiprotons and to make antihydrogen a few years ago, but that was not part of the LHC program. There is a conversion of mass to energy when matter and antimatter annihilate, but the quantity of antimatter in Angels & Demons, the trap holding it and its appearance as a floating, pulsating antiblob in the book/movie are fictional plot devices. These days, more antiprotons are being made by the accelerator complex at Fermilab in the U.S. than are being produced at CERN.”
Physicists Join Massive Collider in Search for Truths
The device that may answer how the universe came to be is the largest and one of the most expensive devices ever created. The Large Hadron Collider (LHC) sits beneath the surface of the earth along the Franco-Swiss border outside Geneva. The arms of the world’s largest particle accelerator form a 17-mile tunnel beneath the earth. Within this tunnel, protons are accelerated to almost the speed of light before being slammed against an opposing stream of protons in a head-on crash of cosmic proportions. The goal? To answer such fundamental physics questions as, What is the origin of mass? What is dark matter? And, what happens to matter when it’s heated to 100,000 times the temperature at the center of the sun?
U. T. Dallas High Energy Physics Researchers Behind Discovery of Mysterious New Particle
RICHARDSON, Texas (July 7, 2005) – Scientists from The University of Texas at Dallas (UTD) High Energy Physics (HEP) Group were instrumental in a discovery disclosed to the scientific community last week of a mysterious new subatomic particle – dubbed Y(4260). The researchers are part of the BaBar experiment, a United States Department of Energy (DOE) particle physics collaborative research program being conducted at the Stanford Linear Accelerator Center (SLAC). The discovery could ultimately provide scientists with a deeper understanding of the makeup of the universe. Details of the breakthrough are contained in a paper that was submitted to the journal Physical Review Letters. In addition, the discovery was reported last week at a research conference in Uppsalla, Sweden, and an announcement was made, also last week, by SLAC ( Major contributors to the discovery include four researchers from UTD – HEP Group scientist Dr. Shuwei Ye, Professor and Physics Department head Dr. Xinchou Lou, Physics Professor Dr. Joseph Izen and Ph.D. student Glenn Williams. The group’s research is funded by the DOE.
UTD Physics Department to Host Monthly Meetings of Texas Astronomical Society
RICHARDSON, Texas (Dec. 12, 2005) – The Texas Astronomical Society (TAS) of Dallas, one of the premier amateur astronomy organizations in the country, will begin holding its monthly meetings on the campus of The University of Texas at Dallas (UTD) starting in January. The new cooperative arrangement between the two organizations should prove beneficial to students and members of the public, according to a UTD professor involved in bringing the group to the school. “We believe this partnership will provide tangible benefits to UTD students with an interest, professional or otherwise, in astronomy, as well as to Dallas-area high school students and members of the general public who become involved in joint astronomy-related outreach programs envisioned by the university and TAS,” said Dr. Joe Izen, a professor in UTD’s physics department, which will host the monthly meetings. “We look forward to working with TAS, and are excited to be able to welcome many of the society’s nearly 600 members to campus each month.”
ATLAS Cavern Banjo Video Wins Third Place
Joe Izen, principal investigator for UT Dallas' high energy physics group, entered Banjo Hangout'sBanjos in Unusual Places challenge and won third place out of 28 entries. In Izen's video, he playsRed Hills Polka and Chinese Breakdown on his banjo in the ATLAS cavern. Izen picked up the banjo in the 80s when he was a PhD student working on the CLEO experiment. He played during night shifts at CLEO and later in other experiments he worked on, most recently in the ATLAS Control Room at CERN during theLarge Hadron Collider's first run. "Around 4AM when the body clock starts to go to sleep, if everyone was okay with it, I'd play my banjo," says Izen. Izen's band Squirrelheads in Gravy has two tracks included in Resonance, a double-CD featuring music of physicists working on the ATLAS experiment, the proceeds of which help to fund theHappy Children's Home in Pokhara, Nepal. Banjo Hangout runs a challenge every month, and Banjos in Unsual Places was its April edition.


ATLAS Collaboration
BaBar Collaboration
American Physical Society
APS Division of Particles and Fields