Scan of the beam direction with SPR as observable.
- CERN 18
- S403, bar with 3-layer spherical lens
- protons @ 7 GeV/c
- geometrical reconstruction
- delta t selection with 1.5 ns
- vertical bar ambiguities are not considered
Example of the likelihood difference after correction for 20 degree (before correction sep=~2.4 s.d.):
