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This Week at Physics

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Events During the Week of October 13th through October 20th, 2013

Monday, October 14th, 2013

Cosmology Journal Club
An Informal discussion about a broad variety of arXiv papers related to Cosmology
Time: 12:30 pm
Place: 5242 Chamberlin Hall
Abstract: Please visit the following link for more details:
    http://cmb.physics.wisc.edu/journal/index.html
Please feel free to bring your lunch!
If you have questions or comments about this journal club, would like to propose a topic or volunteer to introduce a paper, please email Le Zhang (lzhang263@wisc.edu)
Host: Peter Timbie
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Condensed Matter Theory Group Seminar
Composite Scattering and Transport in a 2D Fermi Liquid near Autiferromagnetic Critical Point
Time: 4:30 pm
Place: Chamberin 5310
Speaker: Andrey Chubukov, Physics Department
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Tuesday, October 15th, 2013

Information Session
University of Illinois - Chicago Liautaud Graduate School of Business Information Session
Time: 12:00 pm
Place: 5310 Chamberlin Hall
Speaker: Caroline Latorre, University of Illinois - Chicago
Abstract: Are you interested in graduate school? Are you interested in graduate school in Business or an MBA perhaps? The Physics Department is hosting an representative from the University of Illinois - Chicago Liautaud Graduate School of Business to talk about their MBA program and admissions.<br>
Host: Alec Widerski
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Chaos & Complex Systems Seminar
From here to there: From neuroscience of the human brain to complex system realities in every day human life
Time: 12:05 pm
Place: 4274 Chamberlin (refreshments will be served)
Speaker: Bernard Z. Friedlander, Department of Psychology, University of Hartford, West Hartford, CT
Abstract: Can we adapt burgeoning progress in neurocellular electrochemistry to human behavior in the disorderly theaters of real life in which our individual and social narratives unfold? Can we identify critical conceptual and practical issues that must be recognized and solved if we are to reconcile the divergent criteria of explanatory natural sciences and the interpretive sciences of human behavior?
Host: Clint Sprott
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Theory Seminar (High Energy/Cosmology)
Falling, intersecting, and magnetized flavors in AdS/CFT
Time: 4:00 pm
Place: Chamberlin 5280
Speaker: Paul McGuirk, Cornell University
Abstract: The addition of global symmetry groups to strongly coupled gauge theories realized by AdS/CFT is of both purely theoretical interest, as doing extends the gauge/gravity correspondence, and model-building interest, as such groups provide prototypes of bulk Randall-Sundrum models. In the best-understood versions of the correspondence, such global symmetries are realized by the addition of D-branes that extend along the radial direction of anti-de Sitter space. I will discuss some recent and forthcoming results on the physics of such branes. In particular, I will talk about how they respond to sources of supersymmetry breaking and how such D-branes can be combined and modified to introduce bifundemental and chiral fields.
Host: Gary Shiu
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Wednesday, October 16th, 2013

Department Meeting
Time: 12:15 pm
Place: 5310 Chamberlin Hall
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Thursday, October 17th, 2013

Astronomy Colloquium
Molecular gas, AGNs, star formation and galaxy evolution: a local look at galaxies undergoing the transition
Time: 3:30 pm
Place: 4421 Sterling Hall
Speaker: Katherine Alatalo, CALTECH
Abstract: Understanding the evolution of galaxies from starforming blue cloud objects into quiescent red sequence galaxies has been revolutionized by observations taken with the Herschel Space Observatory, ALMA, and CARMA, allowing astronomers to probe both the cold dust and cold ISM in a large set of galaxies, with unprecedented sensitivity. Observations of galaxies in molecular gas, cold dust and the cool ISM (such as the [C II] line) have given us an unprecedented view of the transition galaxies undergo to go from the blue starforming cloud to the red sequence. Specifically, I will discuss the role a compact group environment plays in this transition, as well as discuss the unusual case of NGC1266, a local S0 galaxy that is expelling its interstellar medium at a rate of 50 Msuns/yr, over 100x the star formation rate. These example systems have the potential to provide local laboratories for understanding mechanisms that transition galaxies at higher redshift, and put the roles of AGNs and mild interactions into the larger context of galaxy evolution.
Host: Prof Christy Tremonti
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Friday, October 18th, 2013

Theory Seminar (High Energy/Cosmology)
Neutrino Advances and Developments in Finite Group Models
Time: 2:00 pm
Place: 5280 Chamberlin Hall
Speaker: David A. Eby, Vanderbilt University
Abstract: Neutrino discoveries over the last decade and a half have provided the first definite observation of particle physics beyond the standard model. The ramifications of these results are continuing to impact the theory community, as its members struggle to adapt old models and develop new ones. Finite group models have been particularly successful at providing explanations for new neutrino behavior. Our work, titled Binary Tetrahedral Flavor Symmetry or the TaEuroTM Model, endeavors to bridge the quark and lepton families in a single coherent system by means of additional Higgs-like particles. This theory provides testable predictions for neutrino mixing, quark mixing, and dark matter. Where possible, we evaluate these predictions against current experimental evidence and find agreement with the atmospheric and reactor neutrino mixing angles, an accurate prediction of the Cabibbo angle, and a dark matter candidate outside of current limits. Taken together, we believe these results speak to the promise of finite groups and flavor symmetries to accurately approximate nature.
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Physics Department Colloquium
Search for Higgs Boson Decays into Invisible Particles at the LHC
Time: 3:30 pm
Place: 2241 Chamberlin Hall (coffee at 4:30 pm)
Speaker: Ketevi Assamagan, Brookhaven National Lab
Abstract: In this talk, we will discuss whether the Higgs-like particle discovered with a mass around 125 GeV has a significant decay into invisible (undetected) particles. We will also discuss whether there may be other Higgs-like bosons at different masses with significant decays into invisible final state.
Host: Sau Lan Wu
Poster: http://www.physics.wisc.edu/twap/posters/2013/2976.pdf
Video: http://www.physics.wisc.edu/vod/2013/10/18.html
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"This Week at Physics" poster: http://www.physics.wisc.edu/twap/posters/2013/2013-10-14.pdf

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