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Electron-positron accelerators: Strategies for the precision tools of the future

On May 2 and 3, 2016, a workshop will take place at the MPP to open discussion on concepts for future electron-positron accelerators. These accelerators bring matter and antimatter particles into collision and are an important complement to the Large Hadron Collider (LHC). The goal of this and subsequent meetings is to reach agreement on a common line for German high-energy physics.

Image: Anne Bauer Design, Frank Simon, DESY

When it comes to high energies, the LHC is the undisputed front-runner among particle accelerators — here protons smash into protons at nearly the speed of light. However, the impact of the collision generates a real scrap heap of new particles; the analysis of these collision products is extremely laborious and time-consuming.

Significantly more precise results can be achieved by crashing together electrons and their antiparticles, the positrons. The matter and antimatter particles annihilate each other and are converted into energy. Out of that, new particles emerge. Collisions between electrons and positrons produce only minimal particle “waste” — in contrast to the proton-proton collisions used by the LHC.

As a consequence, unexpected events can be evaluated more easily and precisely. At the workshop, international experts will discuss the conceptual and technical possibilities for the electron-positron accelerators of the future — also as the basis for a pan-European strategy that is to be formulated by 2018.

 

 

Contact:
Prof. Siegfried Bethke
Max Planck Institute for Physics
+49 32354-305
bethke@mpp.mpg.de