Recent Results from Belle

COFFEE_KLATCH · Invited

Abstract

In spring 2010, the Belle Collaboration completed data taking at the KEKB $e^+e^-$ collider after having collected the largest data samples at $\Upsilon(1S)$, $\Upsilon(2S)$, $\Upsilon(4S)$ and $\Upsilon(5S)$, totalling well over 1 $ab^{-1}$ of $e^+e^-$ collisions in its over ten year run. The Collaboration continues to produce very interesting new observations, and in this talk several of the most recent results will be described. Over the past year, the large $\Upsilon(5S)$ data set has produced several first observations in bottomonium and $B_S$ physics. Selected topics from this data set will include first observations of bottomonium and bottomonium-like states, new and improved measurements of transitions among these states. We will also present new results from the $\Upsilon(4S)$ data sample, including investigations of leptonic \& semileptonic B decays, charmless B decays and decays of B mesons to pairs of open charm mesons. Several of these results will include new or improved measurements of CP violating parameters and CKM mixing angles as well. In addition, plans for Belle II, the upgrade to the Belle detector, and Super-KEKB, the accelerator upgrade, will be briefly discussed.

Authors

  • Todd Pedlar

    Luther College