Effects of flavor conserving CP violating phases in SUSY models

I summarize our recent works on the effects of flavor conserving CP violating phases in SUSY models on $B$ and $K$ phenomenology.Comment: Contributed alk at the 3rd International Conference on B Physics and CP Violation (BCONF99), Taipei, Taiwan, 3-7 Dec 1999 (4 pages

SUSY CP violations in K and B systems

I report our recent works on the effects of % flavor conserving CP violating phases in SUSY models on B and K phenomenology.Comment: To appear in the proceeding of CICHEP 200

Effective field theory for top physics

We study the top forward-backward asymmetry (FBA $\equiv A_{\rm FB}$) reported by CDF and D0 Collaborations in the effective lagrangian approach. Using dimension-6 effective largrangians for $q \bar{q} \rightarrow t \bar{t}$, we study the $t\bar{t}$ production cross section and the $A_{\rm FB}$, and a few observables: the FB spin-spin correlation that is strongly correlated with the $A_{\rm FB}$, and longitudinal top polarization as a new probe of chiral structures for possible new physics scenarios.Comment: To appear in Top 2011 Proceeding (Sant Feliu de Guixols, Spain

SU(2)L×_L\timesSU(2)R_R minimal dark matter with 2 TeV W′W'

We construct the minimal dark matter models in the left-right symmetric extensions of the standard model (SM), where the gauge symmetry SU(3)$_C\times$SU(2)$_L\times$SU(2)$_R\times$U(1)$_{B-L}$ is broken into its subgroup SU(3)$_C\times$U(1)$_{\rm em}$ by nonzero VEVs of a SU(2)$_R$ doublet $H_R$ and a SU(2)$_L\times$ SU(2)$_R$ bidoublet $H$. A possible candidate of dark matter is explored in the framework of minimal dark matter considering SU(2)$_{L, R}$ multiplet scalar bosons and fermions. Then we focus on SU(2)$_R$ quintuplet fermions with $B-L$ charges 0, 2 and 4 as the minimal dark matter candidates and investigate phenomenology of them. We show that the dark matter in the model can provide observed relic density with 2 TeV $W'$ boson which is motivated by the ATLAS diboson excess and CMS $eejj$ excess. The possible mass of dark matter is predicted for each $B-L$ charge. We then estimate the scattering cross section of dark matter with nucleon and production cross section of charged components in the quintuplets at the LHC.Comment: 12 pages, 11 figures, version published in Phys. Lett.