SPIN 2006 Preliminary Result


Event Selection Criteria
  • run belongs to golden run list, version c
  • BBC timebin belongs to {7,8,9}
  • spinDB QA requires: isValid(), isPolDirLong(), !isPolDirTrans(), !isMaskedUsingBX48(x48), offsetBX48minusBX7(x48, x7)==0
  • ignore additional vertices
  • trigger = MB || JP1 || JP2
Pion Selection Criteria
  • |eta| < 1.
  • |global DCA| < 1.
  • nFitPoints > 25
  • flag > 0
  • nSigmaPion is in the range [-1,2]
 Systematic Studies

The following are links to previous studies, some of which are outdated at this point:
Single-Spin Asymmetries by BBC timebin
BBC Vertex

Kasia's estimate of beam background effect on relative luminosities
Kasia's estimate of systematic error due to non-longitudinal porlarization
Groups: