MLL-Kolloquium: Prof. Stephanie Hansmann-Menzemer (Univ. Heidelberg): First Physics Results at LHCb

Thursday 16 Jun 2011, 16:00 → 17:00 Europe/Berlin

LMU Building, Am Coulombwall 1, Garching, Lecture Hall (ground floor)

More than 30 years ago the so-called Standard Model of particle physics was invented. Since then the Standard Model describes all observations in laboratory experiments. Nevertheless physicists consider it as an effective theory valid at low energies only. New phenomena, so-called New Physics, are supposed to be revealed at higher energy scales. Since March 2010 the Large Hadron Collider (LHC) is studying proton-proton collisions at a world record center-of-mass energy of 7 TeV. All experiments at the LHC are devoted to search for signs of New Physics. One of them is the LHCb experiment, which is dedicated to precision measurements in the B-System. Exploring the B-System was in the past very successful in establishing the flavour structure of the quark sector of the Standard Model. It is as well a very promising tool for indirect searches for New Physics. In this talk we will discuss the first LHCb results based on 36 pb^-1 taken in 2010. Among them, there are many world best measurements, such as the most precise mass measurements or the most precise measurement of the B_s - \overline{B_s} mixing frequency. We will give as well an outlook on the physics potential of the LHCb experiment.

Abstract kolloquium-16-06-11.pdf