Leopold Infeld Colloquium
2006/2007 | 2007/2008 | 2008/2009 | 2009/2010 | 2010/2011 | 2011/2012 | 2012/2013 | 2013/2014 | 2014/2015 | 2015/2016 | 2016/2017 | 2017/2018
2009-02-26 (Thursday)
A(425), Hoża 69 at 15:30 
Dr Stephane Lavignac (IPhT-CEA Saclay)The baryon asymmetry of the Universe
The fact that our Universe is matter-antimatter asymmetric is generally regarded as a problem for the Standard Model of particle physics, which must be solved by some new physics beyond the one we presently observe at colliders. Indeed, while all ingredients needed to dynamically generate a matter (or baryon) asymmetry are present in the Standard Model, the corresponding mechanism, known as electroweak baryogenesis, fails to produce the observed value. One must therefore appeal to an alternative mechanism relying on new physics beyond the Standard Model. Among various possibilities, a very interesting one is the leptogenesis scenario, which nicely connects the baryon asymmetry of the Universe to the observed neutrino oscillations.
2009-01-08 (Thursday)
A(425), Hoża 69 at 15:30
prof. Ian M. Anderson (Department of Mathematics and Statistics, Utah State University)Applications of Differential Geometry to Mathematical Physics with Maple
In this talk I shall discuss the new Differential Geometry package in Maple and illustrate some of the capabilties of this package for computations in mathematical physics. The Differential Geometry package provides a complete, integrated environment for symbolic computations in the areas of calculus on manifolds, tensor algebra and tensor analysis, Lie algebras and Lie groups, jet calculus, and general relativity. I will give a few demonstrations from the areas of integrable systems, Lagrangian reduction in the calculus of variations, homogeneous cosmologies, and equivalence problems to illustrate both the ease of use and versality of the software. Future enhancements of the program will be briefly discussed.
2008-12-11 (Thursday)
A(425), Hoża 69 at 15:30
prof. dr hab. Piotr Chankowski (Instytut Fizyki Teoretycznej UW)Theoretical perspectives on the LHC
In the first part of the talk I will summarize the present status of the Standard Theory of elementary particle interactions emphasizing the necessity of completing it in the UV (at high energies). I will argue that the Standard Model, while seemingly succesful, can at best only be an effective description of a more fundamental completion of the Standard Theory. In the second part I will try to sketch some of many theoretical proposals for a more fundamental theory that will be tested at the LHC.