CMS Experiment
Searches for Heavy, Stable,
Charged Particles (HSCPs) (2008-present)
Searches for Diphoton Resonances in Triphoton Events (2010-2022)
Electromagnetic Calorimeter - timing studies, calibration, prompt feedback, testbeam, trigger, shifts (2009-present)
High Granularity Calorimeter Upgrade - tile testing (2022-present)
Upgrade studies for a possible calorimeter upgrade planned for 2023 (2012-2017)
Level 3 Task responsible for
issues related to the interface between generators and
detector simulation (2008-2011)
Member or chair of numerous analysis review committees
Member of CMS Thesis Award Committee (2022-2026)
I work on the CMS experiment. CMS is an experiment which studies proton-proton interactions at the LHC at CERN.
Jie Chen and I are part of the team searching for evidence of new charged, massive particles that has resulted in a publication in JHEP 1103 24 (2011)..
My activities on CMS can be summarized as:
D0 Experiment
-
For about a decade (2001-2013), I worked on
the D0 experiment. D0 is an experiment
which studies proton-anti-proton interactions at the Fermilab Tevatron.
Co-Chair of Editorial Board 9
(2010-2012):
- This EB is responsible for reviewing and approving measurements of the top pair production cross section in lepton+jets final states.
- Member of Computing Planning Board
(2007-present)
New Phenomena Physics Group Convener
(2007-2009)
- I was responsible for organizing the activities of the D0 New Phenomena physics group during a time period where the New Phenomena group produced 1/4 of the D0 publications and doubled the number of New Phenomena Run II papers.
- Measurement of the Top Pair
Production Cross-section in e/mu + tau + 2b + MET Final State
(2006-2008)
- Analysis was carried out with Suharyo Sumowidagdo. This is the last major final state to measure the top cross-section. The t->b+tau+nu is a pure 3rd generation process and is a probe of the possible charged Higgs via t->Hb->tau+nu+b.
- Search for Neutral, Long-lived
Particles (2004-2006)
- see above
- Simulation Group Convener
(2006-2007)
- I was responsible for organizing the activities of the D0 simulation group. This includes creating and maintaining the programs needed to simulation the physics and detector.
- Monte Carlo Request Coordinator
(2005-2007):
- I was responsible for ensuring the generation of most of the simulation needs of the experiment. We have achieved full GEANT simulation of more than 100,000,000 events which are used by every physics analysis.
- Chair of the D0 GEANT Improvement
Task Force (2007)
- The task force is investigating ways to improve the use of GEANT3 in the D0 simulation to get better modeled response or an improvement in speed.
- Chair of Editorial Board 19
(2006-2007):
- This EB is responsible for reviewing and approving searches for new phenomena in the jets + missing transverse energy channel.
- Member of Editorial Board 19
(2004-2006):
- This EB is responsible for reviewing and approving searches for new phenomena in the jets + missing transverse energy channel.
- L1Cal trigger upgrade for Run2B
(2002-present):
- Responsible for code development for unpacking L3 data and shifter online monitoring.
- Simulation of Silicon Track Trigger
(2001-2004)
Event display development (2001-2003)
I have performed a search for a neutral, long-lived particle decaying to two muons which was featured as Fermilab's Result of the Week on March 2, 2006. The result was published in Physical Review Letters 97, 161802 (2006) (Copyright 2006 The APS).
Suharyo Sumowidagdo and I performed a measurement of the top pair production cross section in the tau+lepton+jets+MET final state. The result was an important part of three papers that combined the dilepton channels: (1) Physical Review D 80, 071102(R) (2009); (2) Physics Letters B 679, 177 (2009); (3) Physics Letters B 682, 278 (2009).
My activities on D0 can be summarized as:
Neutrino Scattering
-
I have worked on studies of a proposed experiment to study neutrino
scattering at high energy called NuSOnG. Two papers were produced by
the NuSOnG collaboration:
(1) International Journal of Modern Physics A 24, 671 (2009) ;
(2) International Journal of Modern Physics A 25, 909 (2010).
I have also previously worked on the NuTeV experiment.
Mitchell Conference 2024 (Invited)