I have been working in the ATLAS collaboration, which explores fundamental physics of universe using proton-proton colliding data at Large Hadron Collider (LHC), the world highest energy particle collider, at CERN in Geneve. The ATLAS experiment studies elementary particles and their interaction and discovered Higgs boson in 2013, which had been the last missing piece of so-called "Standard Model" and is considered as a key particle for the origin of mass. In the experiment, I have been particularly working on studies of Quantum Chromodynamics (QCD) by analyses of jet production at the collisions. QCD describes the dynamics of quarks and gluons, which are the fundamental elementary particles and constitute the proton. The validity of QCD at high energy and its better understanding are very important topics at the proton-proton collider, even for further possible discoveries of new particles at LHC.

Main Publications

• ZEUS Collaboration, “Measurement of the longitudinal proton structure function at HERA”, Physics Letters B, 682, 8-22, (2009)
• ATLAS Collaboration, “Measurement of inclusive jet and dijet production in pp collisions at sqrt(s)=7 TeV using the ATLAS detector”, Phys. Rev. D86, 014022 (2012)
• ATLAS Collaboration, “Measurement of the inclusive jet cross section in pp collisions at sqrt(s)=2.76 TeV and comparison to the inclusive jet cross section at sqrt(s)=7 TeV using the ATLAS detector”, Eur. Phys. J. C73 (2013) 2509