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M2 beam line

The M2 beamline is located in EHN1 which is also known as building 888

This is the CERN high-intensity muon beam. It consists of an approximately 600 metres long pion and kaon decay channel, at ther end of which the remaining hadrons are observed in up to 9.9 metres of Beryllium. The remaining muon beam is shaped and cleaned in the 400 metres long muon section of the beam.

< click for full picture

 M2 User Guide

Intensity for 10¹² incident protons at 450 GeV/c:   

2 107 mu+ at 100 GeV/c 3 106 mu- at 200 GeV/c

High-intensity (polarised) muon beam

The following versions of the optics exist:

 

Muon beam: Hadron section optics: Optics drawing (Postscript) (PDF)

 

Muon beam: Muon section optics: Optics drawing (Postscript) (PDF)

 

Hadron beam: Full beam optics: Optics drawing (Postscript) (PDF)

 

Hadron beam: -225 GeV/c optics (compatible with protons in P61): Optics drawing (Postscript) (PDF)

 

Electron beam: Secondary beam optics (T6 to secondary target): Optics drawing (Postscript) (PDF)

 

Electron beam: Tertiary beam optics (Secondary target to COMPASS): Optics drawing (Postscript) (PDF)

Experiments along this Beam:

 

NA58 (COMPASS) - Zones PPE211, PPE221

Liaison Physicist: Lau Gatignon