SSA vs. Fill for Leading Charged Pions

In these asymmetries I only use the leading away-side charged pion (+ or -) from each event.

Event Cuts

  • 6 < BBC time bin < 9
  • Usual Spin DB QA checks, including masked bxings identified by Tai

Jet Cuts

  • p_{T} > 3.5
  • -0.7 < detector η < 0.9
  • R_{T} < 0.92
  • jet axis within 36 degrees of triggered jetpatch center

Track Cuts

  • 2 < p_{T} < 10
  • |η| < 1.0
  • nFitPoints > 25
  • |dcaGlobal| < 1.0
  • recalibrated nσ(π) in [-1,2]
  • ΔR relative to jet > 1.5

Asymmetries are defined as (Y,B):

Yellow Beam: -1 x { (++ + +-) - (-+ + ) }
Blue Beam: -1 x { (++ + -+) - (+- + ) }
Like-Sign: (++) - ()
Unlike-Sign: (+-) - (-+)

Yellow SSA, pi- Yellow SSA, pi+

Blue SSA, pi- Blue SSA, pi+

Like-Sign SSA, pi- Like-Sign SSA, pi+

Unlike-Sign SSA, pi- Unlike-Sign SSA, pi+