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Events on Tuesday, December 12th, 2017

Chaos & Complex Systems Seminar
Fractal occupancy of human landscapes: The concept of profit in Evansville, WI
Time: 12:05 pm - 1:00 pm
Place: 4274 Chamberlin (refreshments will be served)
Speaker: Tim Allen, UW Department of Botany
Abstract: Systems are predictable on two criteria: the thermodynamics of process; rate-independent constraints. The economics of this distinction is high gain, straight consumption of quality fuel, versus low gain where low quality material is processed to make quality fuel. A quality resource might sit on a hot spot. Evansville, WI, is a low gain system that depended on rail road (which is planned). Janesville and Madison are high gain depending or roads and fossil fuel. Roads are not planned, they simply straighten and widen in response to the flux of traffic. Railroads and roads end up with roughly the same fractal dimension, but railroads branch out from the main line, while roads emerge up scale from small roads to turnpikes. Evansville depends on a diffuse low quality landscape, while amassing capital by concentration. Janesville and Madison depend on high quality, locally focused resources. The argument turns on my satellite repairman based in Evansville, servicing a diffuse landscape with information and constraint structure.
Host: Clint Sprott
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NPAC (Nuclear/Particle/Astro/Cosmo) Forum
Evidence for the Higgs Boson Decay to a Bottom Quark-Antiquark Pair
Time: 2:30 pm
Place: 4274 Chamberlin Hall
Speaker: Stephane Cooperstein, Princeton
Abstract: A search for the standard model (SM) Higgs boson (H) decaying to bb when produced in association with an electroweak vector boson is reported for the following processes: Z(νν)H, W(μν)H, W(eν)H, Z(μμ)H, and Z(ee)H. The search is performed in data samples corresponding to an integrated luminosity of 35.9 fb−1 at √s = 13 TeV recorded by the CMS experiment at the LHC during Run 2 in 2016. An excess of events is observed in data compared to the expectation in the absence of a H → bb signal. The significance of this excess is 3.3 standard deviations, where the expectation from SM Higgs boson production is 2.8. The signal strength corresponding to this excess, relative to that of the SM Higgs boson production, is 1.2 ± 0.4. When combined with the Run 1 measurement of the same processes, the signal significance is 3.8 standard deviations with 3.8 expected. The corresponding signal strength, relative to that of the SM Higgs boson, is 1.06+0.31. −0.29
Host: Sridhara Dasu
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Council Meeting
Time: 4:00 pm
Place: 2314 Chamberlin Hall
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