The P-326 run in year 2007

CERN has approved a P-326 run from June 2007 to October 2007 at the Super-Proton Synchrotron in order to collect 150,000 Ke2 events with the P-326 (formerly NA48) apparatus.

The expected background contamination (due to Kmu2 decays) in the Ke2 sample is 6.2%, the background being concentrated in the kinematic region of high momentum of the reconstructed track (above 40 GeV/c). A crucial element for background subtraction is muon identification by the E/P ratio. The E/P spectrum of muons will be measured 1) with a sample of pure muons selected using a lead plate placed in fromt of the second HOD plane covering ~20% of the geometric acceptance; 2) with a sample of pure muons selected using Kmu2 decay kinematics at low track momentum.

• P326 Lead Wall (2007 Run):
  

Shifts

Shift list for run 2007

Info

SPS Page 1

Run Coordinators

• Riccardo Fantechi
• Silvia Goy Lopez
• Rainer Wanke

Analysis

Analysis Page