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
  •  Annihilation of electrons and positrons with the PEP-II storage ring at SLAC


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-present)
  • Academic Council (2007-2008, 2016-2017)
  • 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)
  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

Award Funds Students Particle Physics Research
UT Dallas physics student Alex Palmer has won an award from theDepartment of Energy (DOE) Office of Science Graduate Fellowship Programto pursue research on particle physics. The terms of the fellowship are generous. The $50,500 award includes support for tuition and fees, an annual living stipend and an annual research stipend. It is renewable for up to three years, as long as the fellow makes progress toward a PhD and attends a yearly research conference. “I’m very excited because it grants me a lot of extra freedom in graduate school,” said Palmer, who will graduate this May with a bachelor’s in physics. “I can likely get into research during my first semester, rather than just taking classes and being a TA. Additionally, if for some reason I decide to switch specialties within physics, I won’t be a year behind.”
Space Model Brings Vast Distances Down to Scale
A physics colloquium on Wednesday began with a dedication of a poster that places the closest star to our sun squarely atop UT Dallas. The event was the result of an effort by the Gruppo Astrofili di Piacenza astronomy club in Italy to illustrate the vastness of space. The club created an “Astronomy Park” scale model of the solar system using posters to mark the locations of various heavenly bodies. Club members set the scale at 1:5,000,000,000, or about 79,000 miles per inch, so that the model could fit inside a public park in Piacenza, Italy.
Center is a New Space to Explore the Sciences
The Science Learning Center’s tile exterior was inspired by two patterns: atomic emission spectra of gases, and human DNA when it is separated in a process called gel electrophoresis. The Science Learning Center doubles the number of instructional science labs at UT Dallas and brings labs from a variety of disciplines together in one facility. Classes in chemistry, biology, physics, the geosciences, and science and mathematics education will be taught in the new space. Designed with the participation of faculty, including Physics Professor Joseph M. Izen, who chaired the building’s advisory committee, every aspect of the facility has been designed to satisfy specific academic goals.
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.”
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.


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