EXA2011

The Belle experiment at the KEK lab in Tsukuba, Japan, has accumulated a sample of about 770 million B-meson pair events between the years 1999 and 2010. This huge dataset allowed to establish CP violation in a number of B decays and in the interference between B mixing and some B decays. All CP-violating phenomena found at Belle are consistent with the Cabibbo-Kobayashi-Maskawa (CKM)...

The goal of the KLOE–2 experiment operating at the upgraded DAΦNE e+ e− collider is to collect an integrated luminosity of about 20 fb^−1 during 3-4 years of running. Measurements using the KLOE–2 apparatus equipped with the inner tracker, new scintillation calorimeters and the γγ taggers will allow to refine and extend the KLOE physics program on kaon physics and tests of fundamental...

The contribution reports on our recent study [1] of the interaction of antikaons with nuclear systems within an SU(3) chiral approach combined with coupled-channel T-matrix resummation techniques [2,3,4]. The K^- meson self energy operator is constructed from in-medium subthreshold K^-N scattering amplitudes derived within a chirally motivated model, which accounts for new SIDDHARTA data [5]....

on behalf of the FINUDA Collaboration The presentation deals with the study of the $K^-_{stop} A$ $\rightarrow$ $\Sigma^\pm\pi^\mp A'$ reaction, which is studied on light nuclei, $A=$ $^{6,7}Li$, $^9Be$, $^{13}C$ and $^{16}O$. Final $\Sigma$'s and $\pi$'s are detected by using the FINUDA spectrometer, which operated at the DA$\Phi$NE $e^+e^-$ facility (LNF). The $\Sigma^\pm$ hyperons...