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How do scientists uncover phenomena and explain their connections? How do engineers design machines, methods and infrastructure? At omega tau, experts give detailed answers. Over the last ten years, we have produced over 350 episodes in which we dug deeper, until we ran out of questions. Join us on our journey through the world of science and engineering: the closer you look and listen, the more interesting things get.

https://omegataupodcast.net

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episode 345: ATLAS Science


Guests: Philipp Windischhofer   Host: Markus Voelter   Shownoter: Andy Joiner

After understanding the history and development of ATLAS (and covering the LHC and particle physics in general) in previous episodes, we are now at the point where we can try to understand how a scientist uses the data produced by one of these large detectors and make sense of it. This is what we’ll do in this episode with physicist (and listener) Philipp Windischhofer. If you want to learn even more, you can check out these links provided by Philipp or read the last chapter of the book :-)

Some additional material supplied by Philipp:

  • All ATLAS physics papers
  • The Higgs analysis paper we spoke about in the episode
  • The press release that goes with it
  • Public lecture by my favourite physicist on “why the Higgs has to exist”
  • On the hierarchy problem
  • ROOT data analysis framework

Introduction 00:03:23

Philipp Windischhofer | Particle Physics | University of Oxford | Atlas Collaboration | Atlas Detector (Episode 030 – The Large Hadron Collider)  | Large Hadron Collider (LHC) | CERN | Higgs Boson (Episode 093 - Standard Model)  | Other episodes on particle physics

Particle Physics 00:05:03

Special relativity | Quantum Mechanics | Mass | Charge | Spin | Symmetry | Angular Momentum | Quantized | Graviton | Gravitational Waves | Quark | Color Charge | Strong Interaction | Weak Charge | Weak Interaction | Four Point Interaction | Wave-Particle Duality | Virtual Particles | Quantum Field Theory | Matter Particles | Force-Carrier Particles | Boson | Fermion | UA1 Experiment | UA2 Experiment | Cross Section | Mexican Hat Potential | Spontaneous Symmetry Breaking | Sigmas | FCC | GeV | Hierarchy Problem

Atlas Experiments 00:59:13

Collision | Momenta | Proton | Sub-detectors | Interaction-point | Pixel Detector | Magnetic Field | Gas Based Tracking Detector | Transition Radiation Tracker (TRT) | Calorimeter | Electromagnetic Calorimeter | Hadronic Calorimeter | Muon System (Gas Detectors) | Right-hand Rule | ~2MB data per event | Bunch | Visualizations | Event Reconstruction | Energy Deposits | Extrapolate | Noise | Combinatorics | Tracking | Tracklet | Kalman Filter | Data Fusion | Showers | Jet | Jet Clustering Algorithm | Pileup | Calibration | Model | Integration | Simulation | CAD Model | Bootstrapping | Monte Carlo Methods | Numerical Methods

Physics in ATLAS 01:55:28

Decay | Decay Rate | Boosted | Associated Production | Candidates | ROOT file | Degrees of Freedom | Plot/Histogram | Distribution | Maximum Likelihood Fit | Discretize | Artificial Neural Networks | Boosted Decision Tree | Discriminant | Distance Metric | Blinded | Athena | C++ | Python | Effective Theory


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 June 16, 2020  3h2m