“Bulletin Board”

 School of Particles and Accelerator - November 16, 2013

Theory Weekly Seminar(TWS)

On-shell Amplitudes
Behzad Sabeti, SUT
November 16, 2013
Larak Seminar Room


Abstract: In this presentation, We will study a new method different from default Feynman's method for calculating scattering amplitudes. This method is based on amplitudes with on-shell elements. We Start using Spinor Formalism for calculating tree-level and then M.H.V. amplitudes in Yung-Mills theory. The main step will be the Introduction of recursion relations for tree-level amplitudes, specially a powerful method; BCFW. Then we study on-shell method and recursion relation in N=4 Super Yung-Mills theory. Next we try to calculate loop-level amplitudes using on-shell methods. And finally, We will discuss the recent achievements in this field; Grassmannia as a replacement for Feynman diagrams in Twistor space.

Time: Saturday, November 16, 2013 at 15:00 in Larak Seminar Room
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