Mar. 9 2005 RHIC Planning Meeting

Tuesday (Mar. 1) 12pm - Sun (Mar. 6) 8pm: 128 hours Data Taking time: 39.5 hours = ~84%Beam time with collisions (including short stores): 47.3 hours

Angle Scan

ZDC/sec in BRAHMS

Mar. 9 2005 RHIC Planning Meeting

Crossing-Angle Scan: (half store: Sun 10am – 1pm)

Yellow Horizontal +(ZDC~15% increase)

ZDC

Background

Mar. 9 2005 RHIC Planning Meeting

Crossing Angle Scan(data taken at the maximum allowed angles)

Yellow BlueHorizontal + 0.05 mrad 0.37 mrad

Horizontal - 0.45 mrad 0.7 mrad

Vertical + 0.39 mrad 0.15 mrad

Vertical - 0.6 mrad 0.65 mrad

Blue Beam

Mar. 9 2005 RHIC Planning Meeting

Mar. 9 2005 RHIC Planning Meeting

Mar. 9 2005 RHIC Planning Meeting

BRAHMS Cu+Cu Status• CuCu at 200 GeV Data Summary - ~1.75 nb-1 Cu+Cu 200 GeV recorded (Jan. 16th - Mar. 8th ) - 56M MRS 103M FFS Triggers collected - ~75% of the Goal Achieved - Data taken for the All angle/field settings planned • Physics - Identified Charged hadron yields in 0< y <3.8 - High-pt Physics at y~1,2,3 - Crossing-Angle scan for SMD done • 62 GeV - ZDC HV changed (+700V: same as AuAu 62 GeV settings) - Spectrometer Triggers modified - Identified Particle Yields in 0<y<3 - High-pt Physics at y~1