Andrew Whitbeck, Ph.D.
Department of Physics and Astronomy
Phone: (806) 834-1205
Office: 107 Science Building
Ph.D. Physics, Johns Hopkins University (2013)
B.S. Physics, University of Rochester (2007)
B.A. Mathematics, University of Rochester (2007)
I have been a member of the Compact Muon Solenoid collaboration for 10 years, starting
as a graduate student working on searches for new resonances such as the Higgs boson,
or Higgs-like resonances.
As a graduate student, I helped to develop a matrix element framework for searches
with di-boson final states. These tools help to quickly rule out the high mass Higgs
parameter space in the time between the start of LHC data taking and the discovery
of the Higgs boson, and helped to constrain extensions of the Higgs sector. My work
on matrix element tools was pivotal in maximizing our ability to identify Higgs boson
candidates which ultimately contributed to the initial evidence for its discovery
in 2012. After the discovery, I used these same tools to constrain alternative spin
and parity hypotheses to provide model-independent constraints on the properties of
this newfound resonance and to constrain the existence of parity-violating HZZ interactions.
As a postdoc I worked on searches for strongly produced Supersymmetric particles,
first on a generic multijet plus missing energy search, then two more targeted searches:
one use Higgs bosons and another using high energy photons as a tool for discovering
new sources of missing energy -- a key signature for understanding the nature of dark
matter. I was also intensely involved in the so-called phase-1 upgrades of the CMS
detector. I worked on the initial commissioning of prototype and preproduction frontend
readout electronics. I later led the team doing the qualification, calibration, and
burn-in of the production frontend modules.
I have been at Texas Tech since 2018 and have continued work on searches for new sources
of missing energy with the hope that one day we'll see dark matter being produced
at the LHC, allowing for detailed property measurements to help better understand
the universe we live in. I am also involved with the detector development to help
improve our ability to detect dark matter at accelerators.
I am involved with the construction of the CMS endcap calorimeter upgrades where we're
ramping up to build 5000 silicon modules -- a radiation detector technology similar
to that found in cell phone cameras -- at the Texas Tech Advanced Particle Detector
Laboratory. I am also leading the effort to design and prototype a detector for the
Ligtht Dark Matter eXperiment (LDMX) using scintillating plastics and silicon photomultipliers.
LDMX is a next-generation accelerator-based dark matter experiment that is sufficiently
sensitive for ruling out a large portion of the remaining thermal dark matter parameter
space. Thermal production of dark matter is a leading hypothesis for the origin of
the relic dark matter abundance.
I also have an interest in outreach. I have helped with the Johns Hopkins High Energy
Physics group's exhibit at the National Science and Engineering Festival in Washington
DC. I have participated in career days at local elementary schools. I have help
with the CMS masters class and the quark net project here at Texas Tech, and Astronight
events hosted by the Texas Tech Physics and Astronomy department.
2018 - present Assistant Professor, Department of Physics, Texas Tech University
2013 - 2018 Research Associate, Fermi National Accelerator Laboratory
2009 - 2013 Research Assistant, Department of Physics, Johns Hopkins University
2007 - 2009 Teaching Assistant, Department of Physics, Johns Hopkins University
2006 - 2007 Teaching Assistant, Department of Physics, University of Rochester
2006 - 2007 Research Assistant, Department of Physics, University of Rochester
As a member of the CMS collaboration, I am a co-author on over 800 publication, below
is a selection of those paper which I made a significant contribution to, both within
and beyond the CMS collaboration.
LDMX Collaboration, "A High Efficiency Photon Veto for the Light Dark Matter eXperiment",
submitted to JHEP
CMS Collaboration, "Search for supersymmetry in proton-proton collisions at 13 TeV
in final states with jets and missing transverse momentum", JHEP 10 (2019) 244
CMS Collaboration, "Search for supersymmetry in events with a photon, jets, and missing
transverse momentum in proton-proton collisions at 13 TeV", Eur. Phys. J. C 79 (2019)
LDMX Collaboration, "Light Dark Matter eXperiment (LDMX), public white paper: https://confluence.slac.stanford.edu/display/MME/
Y. Kahn, G. Krnjaic, N. Tran, A. Whitbeck, "M3: A New Muon Missing Momentum Experiment
to Probe (g-2)μ and Dark Matter at Fermilab", JHEP 09 (2018) 153
CMS Collaboration, "Search for supersymmetry in multijet events with missing transverse
momentum in proton-proton collisions at 13 TeV", Phys. Rev. D 96, 032003 (2017)
T. Cohen, M.J. Dolan, S. El Hedri, J. Hirschauer, N. Tran, and A. Whitbeck, "Dissecting
Jets and Missing Energy Searches Using n-body Extended Simplified Models", JHEP 08,
CMS Collaboration, "Search for supersymmetry in the multijet and missing transverse
momentum final state in pp collisions at 13 TeV", Phys. Lett. B 758, 152 (2016)
CMS Collaboration, "Commissioning the performance of key observables used in SUSY
searches with the first 13 TeV data", CMS-DP-2015-035 (2015)
J. Hirschauer, A. Whitbeck, "The CMS Central Hadron Calorimeter DAQ System Upgrade",
JINST, 10, C05019 (2015)