Abstract

Abstract

The recent disovery of the light higgs mass at 125 GeV and the direct searches for supersymmetric particles at the LHC put constraints on the various supersymmetric extensions of the Standard Model. I review the status of popular supersymmetric breaking mechanisms and present some of the ideas we have been exploring in the light of these results.

Abstract

Recently we have studied the non-linear dynamics of a charged particle in x-y plane in presence of a magnetic field. Velocity dependent coupling through magnetic field between motion along x and y directions may induce chaos (stochasticity) in the deterministic system. If the applied magnetic field is time dependent, then for any initial condition dynamics is chaotic. We have qualitatively accounted for the chaotic dynamics based on Hamiltonian description of motion in terms of action and angle variables. Our study also shows that time dependent magnetic field (TDMF) can induce chaos even in a linear system. It implies that dynamics of quantum dot in presence of a TDMF may be chaotic. For the linear system we have determined condition of chaos. Finally, appearance of chaos in the linear system clearly indicates that in presence of a time dependent magnetic field chaotic dynamics of a charged particle in real (nonlinear) system is a universal feature.

Abstract

After giving a brief introduction to the Standard Model I will point out theimpact of the recent results — announcement from ATLAS & CMS, large theta(13). Then I will discuss the Beyond Standard Model (BSM) Physics. I will give two examples: Grand Unified Theory (~ 10^16 GeV ) and low scale (TeV) models as BSM candidates. I will try to convey how the very high scale models can be phenomenologically interesting in the LHC Era.

Abstract