Yen-Jie Lee, Assistant Professor of Physics

Class of 1958 Career Development Associate Professor

EMAIL: yenjie@mit.edu

PHONE: (617) 324-7418

OFFICE: 24-413

ASSISTANT: Anna Maria Convertino (617) 253-2391


Area of Physics:

Experimental Particle Physics - QCD: Quantum Chromodynamics

Research Interests

Professor Lee is an emerging leader in the field of proton‐proton and heavy ion physics, primarily studying quark‐gluon plasma (QGP), a hot and dense matter created in the collisions of heavy nuclei predicted by lattice Quantum Chromodynamics (QCD) calculations. He has an impressive record of extracting information about strong interactions. For example, his work at the CMS experiment at the LHC has helped to show that energy lost by energetic partons (quarks or gluons) traversing the quark‐gluon plasma is converted to lower energy particles emitted at large angles. Recently, he started a new heavy ion physics program aiming for precision measurement of charm and beauty mesons in the CMS collaboration.

Dr. Lee’s research aims to move beyond discovery‐era qualitative measurements of QGP and to understand QCD matter in extreme conditions, such as those that existed in the first microseconds of the universe and that are thought to exist at the core of some neutron stars.

Biographical Sketch

Yen‐Jie Lee completed his undergraduate degree and Master’s in Physics at the National Taiwan University and his doctoral work at MIT in 2011 under the supervision of Wit Busza. After postdoctoral work at the Laboratory for Nuclear Science at MIT, he completed a combined CERN and Marie Curie Fellowship at CERN from 2012 to 2013. He joined the MIT Physics faculty in September 2013. He served as one of the Heavy Ion Physics Group co-conveners in the CMS collaboration from 2014 to 2016. Since 2016, he has been appointed as heavy-ion physics executive board representative in the CMS collaboration.

Prof. Lee received an Early Career Research Award from the U.S. Department of Energy in 2015, an NEC Corporation Fund Award from the MIT Research Support Committee, and a Sloan Research Fellowship from the Alfred P. Sloan Foundation in 2016. He was promoted to Associate Professor of Physics in 2018.

Selected Publications

  • CMS Collaboration, Charged-particle nuclear modification factors in PbPb and pPb collisions at √sNN = 5.02 TeV, JHEP 04 (2017) 039  [arXiv:1611.01664]
  • CMS Collaboration, Study of B meson production in pPb collisions at √sNN = 5.02 TeV using exclusive hadronic decays, Phys. Rev. Lett. 116 (2016) 3,032301 [arXiv:1508.06678] [Fermilab Today]
  • CMS Collaboration, Measurement of transverse momentum relative to dijet systems in PbPb and pp collisions at √sNN = 2.76 TeV, JHEP 1601 (2016) 006, [arXiv:1509.09029] [Fermilab Today]
  • CMS Collaboration, Pseudorapidity distribution of charged hadrons in proton-proton collisions at √s=13 TeV, Phys. Lett. B751 (2015) 143-163 [arXiv:1507.05915] [MIT News] [Fermilab Today]
  • CMS Collaboration, Measurement of jet fragmentation in PbPb and pp collisions at √sNN = 2.76 TeV, Phys. Rev. C 90 (2014) 024908 [arXiv:1406.0932]
  • CMS Collaboration, Studies of dijet transverse momentum balance and pseudorapidity distributions in pPb collisions at √sNN= 5.02 TeV, Eur. Phys. J. C74 (2014) 7, 2951 [arXiv:1401.4433]
  • CMS Collaboration, Modification of jet shapes in PbPb collisions at √sNN=2.76 TeV, Phys. Lett. B730 (2014) 243-263 [arXiv:1310.0878] [Fermilab Today]
  • CMS Collaboration, Studies of jet quenching using isolated-photon+jet correlations in PbPb and pp collisions at √sNN=2.76 TeV, Phys. Lett. B718 (2013) 773-794 [arXiv:1205.0206]
  • CMS Collaboration, Study of high-pT charged particle suppression in PbPb compared to pp collisions at √sNN=2.76 TeV, Eur. Phys. J. C72 (2012) 1945 [arXiv:1202.2554]
  • CMS Collaboration, Observation and studies of jet quenching in PbPb collisions at nucleon-nucleon center-of-mass energy = 2.76 TeV, Phys. Rev. C84 (2011) 024906  [arXiv: 1102.1957]
  • CMS Collaboration, Observation of Long-Range Near-Side Angular Correlations in Proton-Proton Collisions at the LHC, JHEP 1009 (2010) 091 [arXiv: 1009.4122]
  • CMS Collaboration, Transverse momentum and pseudorapidity distributions of charged hadrons in pp collisions at √s=7 TeV, Phys. Rev. Lett. 105 (2010) 022002 [arXiv:1005.3299]
  • CMS Collaboration, Transverse momentum and pseudorapidity distributions of charged hadrons in pp collisions at √s=0.9 and 2.36 TeV, JHEP 1002 (2010) 041 [arXiv: 1002.0621] [Fermilab Today
  • A full listing of Professor Lee’s publication can be found in Inspire


Last updated on July 3, 2018 9:36 AM