Ryan Reece, Ph.D.

Postdoctoral Fellow
Santa Cruz Institute for Particle Physics

This is my space on the web

Me in 2012

Hi! I’m Ryan. I am a postdoctoral researcher at the Santa Cruz Institute for Particle Physics (SCIPP), working with the ATLAS experiment at CERN.

I have experience in data science, pattern recognition, statistical modeling, statistical inference, petabyte data reduction, and machine learning.

Previously as a graduate student at Penn, also with ATLAS, I helped commission the Transition Radiation Tracker (TRT), a sub-detector of the ATLAS tracker, during the start-up of the Large Hadron Collider (LHC) in 2009-2012. In July of 2012, the ATLAS and CMS experiments both announced discovering a new particle consistent with the long-sought-after Higgs boson, a key to explaining electroweak symmetry breaking in the Standard Model of particle physics.

My research has primarily focused on supporting and optimizing the reconstruction of hadronic tau decays, and searching for exotic new physics in ditau and diphoton events, including for signs of Grand Unified Theories and Supersymmetry. Many theories of physics beyond the Standard Model have revolutionary implications for the concepts of symmetry and space-time, and for our understanding of the early universe.

Research Interests

A figure I drew with Kyle Cranmer of the big-picture of the flow of ATLAS data.

A figure I drew with Kyle Cranmer of the big-picture of the flow of ATLAS data.

I am involved in:

Curriculum Vitae


My graduate research was on the reconstruction and identification of hadronic tau decays, measuring the SM Z→ττ production cross section in proton-proton collisions at √s = 7 TeV, and searching for new physics in high-mass ditau events. You can download my thesis here.



UCSC Office Home
Ryan Reece (Nat.Sci.2 #317)
Santa Cruz Institute for Particle Physics
University of California
1156 High St.
Santa Cruz, CA 95064
Ryan Reece
c/o Alex Tuna
Avenue Wendt 36
1203 Geneva, Switzerland

My web presence elsewhere