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Into the Impossible With Brian Keating

Physicists Missed These Particle Tracks for Decades (ft. Daniel Whiteson)

Into the Impossible With Brian Keating

Brian Keating

Physics, Natural Sciences, Science

4.71.1K Ratings

🗓️ 26 December 2025

⏱️ 46 minutes

🧾️ Download transcript

Summary

Please join my mailing list here 👉 https://briankeating.com/yt to win a meteorite 💥 From the electrifying environment of high-speed particle collisions to the challenge of sifting signals from heaps of experimental noise, you'll hear how Prof Whiteson and his team are pushing boundaries. They discuss bold new algorithms capable of spotting non-standard tracks—think wild trajectories that defy classical expectations and could reveal surprises nature has kept hidden. Practical questions about detector design, efficiency, and even the mathematics of “smooth” particle paths make for a rich, dynamic dialogue. If you’re curious about how physicists ask the universe its most challenging questions, the frustrations and breakthroughs of innovation, and the fascinating interplay between theory and experiment, this episode will take you to the front lines of discovery. Plus, hear how machine learning might help us find not just the next weird particle, but perhaps the next Nobel-worthy revelation. Get ready for a fascinating journey into the impossible! Daniel Whiteson is a physicist whose research spans a wide range of topics at UC Irvine. By day, he works on the ATLAS experiment, one of the major physics collaborations at the Large Hadron Collider, where he contributes to Higgs boson precision measurements and develops advanced techniques in machine learning, data acquisition, and trigger systems. His research group is known for applying machine learning innovations to physics problems, including projects beyond ATLAS—like using approximate symmetries or jet pattern matching. Recently, his team has been focused on machine learning projects to identify unusual particle tracks, always pushing the frontier between physics and data science. Timestamps: 00:00 Revisiting Discovery with New Tools 04:43 Particle Tracking Constraints Explained 06:56 Challenges in Non-Helical Track Detection 10:29 Non-Helical Tracks and Dark QCD 14:38 "Track Reconstruction and Efficiency" 18:43 Quirk Detection and Reconstruction" 23:27 Testing Generalization Beyond Memorization 25:23 Quirk Tracks and Overlap Analysis 30:36 "Smooth Paths and Signal Control" 31:17 "Training Pipeline on Weird Tracks" 35:55 Filtering Standard Model Tracks 38:24 "Challenges in Parameter Optimization" 43:15 "Neural Networks Learn Complex Mappings" 44:38 "Machine Learning for Track Detection" - Join this channel to get access to perks like monthly Office Hours: https://www.youtube.com/channel/UCmXH_moPhfkqCk6S3b9RWuw/join 📚 Get my books: Think Like a Nobel Prize Winner, with productivity tips from 9 Nobel Prize winners: https://a.co/d/03ezQFu Focus Like a Nobel Prize Winner, with life-changing interviews with 9 Nobel Prizewinners: https://a.co/d/hi50U9U My tell-all cosmic memoir Losing the Nobel Prize: http://amzn.to/2sa5UpA The first-ever audiobook from Galileo: Dialogue Concerning the Two Chief World Systems: Ptolemaic and Copernican https://a.co/d/iZPi9Un Follow me to ask questions of my guests: 🏄‍♂️ Twitter: https://twitter.com/DrBrianKeating 🔔 Subscribe https://www.youtube.com/DrBrianKeating?sub_confirmation=1 📝 Join my mailing list; just click here http://briankeating.com/list ✍️ Detailed Blog posts here: https://briankeating.com/blog 🎙️ Listen on audio-only platforms: https://briankeating.com/podcast #universe #podcast #briankeating #intotheimpossible #science #astronomy #cosmology #cosmicmicrowavebackground #intotheimpossible #briankeating Learn more about your ad choices. Visit megaphone.fm/adchoices

Transcript

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0:00.0

Hi, just leave on work now. Sorry, it's a bit loud. Um, basically, so I was thinking we could get Macies tonight. Had a big Mac on my mind all day and delivery fee on the app is now from 99P. So you win? Of course you are. Love you. Bye.

0:13.1

Exclusively on the McDonald's app.

0:15.9

18 plus service fee and small order fee may apply. Participating restaurants. Serving times and teas and seas apply.

0:20.2

Today you're in for a special treat.

0:21.8

A lecture delivered by UC Irvine professor Daniel Whiteson, who takes us straight to the edge of what we know and then pushes us over the edge. Particles collide at near light speed. Detectors light up and data pours in by the petabyte. But what does it all mean? Most of it is noise, but somewhere deep inside is a signal that shouldn't exist

0:40.3

unless nature is trying to tell us something new.

0:43.3

This is how modern experimental physics works.

0:45.8

Ask a precise question, build a machine to listen, and let the universe answer.

0:50.2

Let's go with the incomparable Daniel Weitsen.

0:53.6

But today I want to talk to you about a project I've been working on recently, about finding weird tracks.

0:58.0

All right.

1:00.0

So, very brief introduction to who I am.

1:03.0

I have a sort of broad research program up at UC Irvine.

1:06.0

My day job is working on Atlas, so the competitors or friendly collaborators of your CMS colleagues here.

1:12.6

We do Higgs precision measurements, machine learning unfolding, trigger data acquisition stuff.

1:18.0

But I also have folks in my group who do machine learning for physics who are not on Atlas.

1:23.5

And so, for example, we work on applying approximate symmetries or jet parton matching.

1:28.3

Today I'll be talking to you about their machine learning tracking projects they've been working on.

1:33.3

And I have a sideline in astrophysics, so I do some neutron star work, and I have a project on building a cosmic ray telescope using smartphones,

1:43.3

as well as a couple of projects in high

1:46.0

energy theory, exploring high dimensional theoretical spaces with machine learning.

1:52.3

And at the very end, I'll tell you a little bit about my experience in science communication

...

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