Zein-Eddine Meziani is the interim director of the Physics division at Argonne National Laboratory. He is also an Argonne Distinguished Fellow. Prior to this role, he served as a senior scientist and group leader of the Medium Energy Physics group within the Physics division. 

Before joining Argonne, he was a professor of physics at Temple University, a role he held since 1993. He also served as an assistant professor at Stanford University and completed postdoctoral work through the University of Virginia’s Nuclear Physics at SLAC (NPAS) program. He earned his Ph.D. in experimental nuclear physics from the University of Paris XI, Orsay, France (1984). 

Dr. Meziani’s research centers on experimental studies of the multi-dimensional structure of nucleons and nuclei in terms of quarks and gluons within Quantum Chromodynamics (QCD) and, investigated nuclear medium effects on the nucleon electromagnetic properties and few-body nuclear systems. He has performed experiments at CEA Saclay France, SLAC, BNL, and Jefferson Lab.

Dr. Meziani was involved in the studies of the neutron spin structure at SLAC using a polarized ³He target in the early ​’90s and brought some of these experimental studies from SLAC to Jefferson Lab where his research flourished into some of the important science motivations of the 12 GeV upgrade of Jefferson Lab.

Dr. Meziani served as spokesperson of many experiments at Jefferson Lab and was also a member of the Program Advisory Committee (2004-2007). He has servedas theChair of Jefferson Lab Users Group Board of Directors (2009-2011). In 2007 he co-chaired, the QCD and Hadron Physics Town Meeting of the APS/Division of Nuclear Physics (DNP). He was a member of the Nuclear Science Advisory Committee (NSAC) Long-range Plan Working Group in 2007 and 2014. In 2012 he was a member of the Subcommittee on Scientific Facilities of NSAC, and he served on the committee on a U.S.-Based Electron Ion Collider Science Assessment at the National Academy of Sciences (2017-2018).

Dr. Meziani is co-author of more than 130 peer-reviewed papers, Co-Editor of the European Physical Journal A (EPJA) (2007-2016) and co-editor of the Electron-Ion Collider white Ppaper. Dr. Meziani is a Fellow of the American Physical Society (APS), 2004, and the recipient of the Temple University Faculty Research Award, 2008.