Chalk Talk Archive 2019

Raw date Event date Title Speakers Host Summary Links
20190117 Jan. 17, 2019, 4:30 pm Proton Therapy Noah Kurinsky
20190131 Jan. 31, 2019, 4:30 pm Superbowl Squares Strategy Will Wester
20190207 Feb. 7, 2019, 4:30 pm Terms in Cluster Cosmology Yuanyuan Zhang What do you mean when you say abundance, mass, mass proxy, systematic effects, selection effects etc?
20190214 Feb. 14, 2019, 4:30 pm Using Ice Cube as a Beam Dump Sam McDermott
20190221 Feb. 21, 2019, 4:30 pm Quantum Noise in Axion Detectors Andrew Sonnenschein
20190228 Feb. 28, 2019, 4:30 pm Light-by-Light Scattering with Axions and QED Yoni Kahn
20190307 March 7, 2019, 4:30 pm Why Can't Fido Stop Barking? Rakshya Khatiwada Rakshya will talk about the physics of mammalian ears
20190314 March 14, 2019, 4:30 pm What do we mean when we say we do science? A Discussion of Philosophy of Science Dan Hooper It’s more than just Karl Popper
20190321 March 21, 2019, 4:30 pm Classifying Difficulty of Puzzles Kevin Kelly How can we classify Sudoku/Picross/etc in a rigorous way?
20190328 March 28, 2019, 4:30 pm Smart Skipper for Dynamic Single Photon Counting Capability Pedro Querejeta, Universidad Nacional del Sur
20190404 April 4, 2019, 4:30 pm Limiting Charged Dark Matter Using Large Scale Coherent Magnetic Fields in Galaxies and Elsewhere Albert Stebbins
20190411 April 11, 2019, 4:30 pm TBD Adam Anderson
20190418 April 18, 2019, 4:30 pm Backgrounds, what are they good for? Dan Baxter, KICP Noah Kurinsky More than absolutely nothing, that’s for sure.
20190425 April 25, 2019, 4:30 pm Reinforcement Learning and You Felipe Alba, NIU
20190530 May 30, 2019, 4:30 pm HeRALD: Light Dark Matter with Superfluid Helium Doug Pinckney, UMass HeRALD, the Helium Roton Apparatus for Light Dark matter, will use a superfluid helium target to study the sub-GeV dark matter parameter space.  The HeRALD design is sensitive to all signal channels produced by nuclear recoils in superfluid helium: singlet and triplet excimers, as well as phonon and roton vibrational excitations.  Excimers are detected via... More »
20190613 June 13, 2019, 4:30 pm Climate Change...Uh Oh! Dan Bauer
20190620 June 20, 2019, 4:30 pm TBD Yu Dai Tsai
20190711 July 11, 2019, 4:30 pm TBD Nikita Blinov
20190725 July 25, 2019, 4:30 pm Bayes Theorem and the Case of the Busted Alibi Steve Kent The oldest cold case murder in US history ever to be solved occurred right here in Northern Illinois, in the city of Sycamore.  The crime involved the kidnapping of a young girl in 1957.  The story made national news.  The FBI entered the case in force and conducted an exhaustive investigation.  However, no suspect was ever charged. The case went cold for over... More »
20190801 Aug. 1, 2019, 4:30 pm Long-lived Particles at the Energy Frontier of the Intensity Frontier Yu Dai Tsai
20190808 Aug. 8, 2019, 4:30 pm Homogeneity and Efficiency of FNAL MKIDs Israel Hernandez
20190815 Aug. 15, 2019, 4:30 pm High Altitude Balloons — The Cheapest and Quickest Way to Get Detectors Above 99.9% of the Atmosphere Hunter Hall, JPL/Berkeley A typical high altitude balloon (HAB) can reach altitudes ~38km (120,000ft) lifting a payload of ~6kg (13lbs). The SENSEI team at Fermilab is designing and planning to fly a HAB mission(s) that carries a SkipperCCD to the edge of space in order to search for strongly interacting sub-GeV dark matter above 99.9% of Earth’s atmosphere. NASA’s Jet Propulsion... More »
20191003 Oct. 3, 2019, 4:30 pm Where to Find a Tonne of Dark Matter Albert Stebbins on the dark density around compact objects
20191017 Oct. 17, 2019, 4:30 pm Inelastic DM Searches with SuperCDMS Dan Jardin, Northwestern
20191107 Nov. 7, 2019, 4:30 pm Molecular Scintillators: What Organic Chemistry Can do for Dark Matter Direct Detection Carlos Blanco, U Chicago
20191114 Nov. 14, 2019, 4:30 pm Colliding light to make dark matter and measure tau g–2 Jesse Liu, U Chicago Dark matter is mysterious because it doesn’t interact with light. How remarkable it would be if we made it in the lab by colliding light. Using the LHC as the highest energy broadband photon collider ever built opens dark matter searches using the missing momentum 4-vector via proton tagging. I then propose using heavy ion... More »
20191121 Nov. 21, 2019, 5:00 pm Dark sector searches using nonlinear optics Mattias Senger In my talk I will explore a way to combine nonlinear optics with dark sector searches, and talk about a “toy experiment” we have running at SiDet. Improvements on this experimental technique might give new insights on dark sector. The technique is inspired in a nonlinear optics process known as “spontaneous parametric down conversion” in... More »
20191205 Dec. 5, 2019, 4:30 pm Baryogenesis, Neutron Oscillations, and Looking Toward Future Experiments Josh Barrow, UTK Just one of Sakharov’s conditions of baryogenesis has not yet been observed experimentally: baryon number violation. Finding such a rare signal would be an experimental triumph. I’ll review some of the essence of baryogenesis, B-L conservation in the Standard Model, the sphaleron, the possibility of B-L violation, why low scale baryogenesis should be investigated, and... More »