The Miller Lab at The University of Chicago


The Miller Lab explores the properties of fundamental particles at the highest energy proton-proton collisions ever produced in a lab at the Large Hadron Collider at CERN in Geneva, Switzerland using the novel instrumentation of the ATLAS Experiment, dedicated high-speed electronics and real-time data processing, and cutting-edge data analysis algorithms.


 

Triggering on Lorentz-boosted objects

Complex objects often slip past our data filtering systems (triggers). By constructing extremely fast, sophisticated electronics systems that specifically search for these complex structures in real-time, we can recover these otherwise lost objects. This is the gFEX boosted object trigger for Run 3 of the LHC.

Exploring the Standard Model in extreme conditions

The Standard Model offers detailed predictions of the interactions of quarks and gluons with massive gauge bosons. Tests of these predictions at the most extreme energies accessible in the lab shed more light on our current understanding of the theoretical tools and the theory itself, as well as aiding in the search for new physics.

 

Searching for milli-charged particles

Though over a quarter of the mass-energy of the universe is widely thought to be some kind of non-luminous dark matter (DM), all experiments to date have failed to directly detect it, much less measure its properties. The milliQan experiment offers a new approach to detecting new fractionally-charged matter that could constitute a component of the dark matter.

Paper Published 7/17/2019

Reina CamachoMiles Wu

The first measurement of the boosted hadronic Z->bb mass using jet substructure techniques is now published on arXiv [arXiv:1907.07093]! Amazing work again with Chris Delitzsch and former postdoc Reina Camacho that grew out of Miles Wu's thesis!

Paper Published 6/27/2019

Reina Camacho

Boosted Higgs boson performance paper published on arXiv (arXiv:1906.11005)! This paper is focused in part on work done with Chris Delitzsch and Reina Camacho.

Paper Accepted 6/21/2019

Joakim OlssonReina Camacho

Our paper (with Joakim Olsson and Reina Camacho) on the search for high mass electroweak SUSY processes decaying to W and Higgs bosons (arXiv:1812.09432) was accepted by Phys. Rev. D.

Detector commissioning 6/19/2019

Emily SmithFukun Tang

Intense week of commissioning and integration of the new gFEX trigger system for Run 3 of ATLAS with Emily Smith and Fukun Tang

Calorimetry

Calorimetry

High-Speed Electronics

High-Speed Electronics

Jet Substructure & Boosted Objects

Jet Substructure & Boosted Objects

Standard Model Measurements

Standard Model Measurements

Searches for New Physics

Searches for New Physics

MilliQan Experiment

MilliQan Experiment

Chris Delitzsch, Reina Camacho, David Miller (+ ATLAS collaborators), "Measurement of the jet mass in high transverse momentum Z(-> bb)+photon production at sqrt(s)= 13 TeV using the ATLAS detector" submitted to Phys. Lett. B (2019) [arXiv:1907.07093]

Chris Delitzsch, Reina Camacho, David Miller (+ ATLAS collaborators), "Identification of boosted Higgs bosons decaying into b-quark pairs with the ATLAS detector at 13 TeV" submitted to Eur. Phys. J. C (2019) [arXiv:1906.11005]

Peter Berta, Lucia Masetti, David W. Miller, Martin Spousta, "Pileup and Underlying Event Mitigation with Iterative Constituent Subtraction" submitted to JHEP (2019) [arXiv:1905.03470]

Joakim Olsson, Reina Camacho, David Miller (+ ATLAS collaborators), "Search for chargino and neutralino production in final states with a Higgs boson and missing transverse momentum at sqrt(s)=13 TeV with the ATLAS detector" accepted by Phys. Rev. D. (2019) [arXiv:1812.09432]

Giordon Stark, Max Swiatlowski, David Miller (+ ATLAS collaborators), " Search for gluino-mediated stop and sbottom pair production in events with b-jets and large missing transverse momentum" ATLAS-CONF-2018-041 (2018)

Giordon Stark, Max Swiatlowski, David Miller, Patrick Bryant, John Alison, Mel Shochet (+ ATLAS collaborators), "Search for pair production of higgsinos in final states with at least three b-tagged jets in sqrt(s)=13 TeV pp collisions using the ATLAS detector" Phys. Rev. D 98, 092002 (2018) [arXiv:1806.04030]

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