Download presentation
Presentation is loading. Please wait.
1
PVDIS Overview
2
PVDIS vs SIDIS PVDIS SIDIS
Can you find six differences between these panels? GEM Layout, Extra E-Cal, Beam Pipe Target Location, Baffles (PVDIS), Cerenkov’s,
3
Motivation for PVDIS Standard Model d/u for Hydrogen Di-quarks in
No sin2θW Di-quarks in the nucleon (Q2 Dependence) CSV at Quark Level
4
Preparations for the Director’s Review (11/1/11)
Presentable C Design (Malace, Fuchey) Presentable Calorimeter Designs (Huang) Presentable MRPC Design Settle on Field Maps (Reimer) Realistic CLEO baffle, acceptance, FOM (Riordan)
5
PVDIS Setup
6
Cont. Finish tracking framework (Riordan) Backgrounds (Zana)
GEM response, digitization Tracking in GEMC Backgrounds (Zana) Resolve background discrepancies: GEANT3, Geant4, FLUKA Finish radiation hardness studies Monte Carle backgrounds for C detectors
7
Cont. Quantitative DAQ analysis issues SIDIS Trigger
PVDIS Precision Calibration Elastic events for momentum calibration (Rich) Tracking alignment: Blockable holes in baffles?
8
Cont. PVDIS sytematic issues
Pion asymmetry based on DIS pions to photopions Spatial resolution of tracks 35o relative to beam axis Rate dependent effects, including corrections to Q2
9
Cont. Calibration and systematics for SIDIS -- PVDIS target (JP)
10
Statistical Errors (%) vs. Kinematics
A/Q2 should be perfectly flat! (Modulo small y-dep) 4 months at 11 GeV 2 months at 6.6 GeV Error bar σA/A(%) shown at center of bins in Q2, x 9 September 2010 Paul E. Reimer, PAVI 11
11
Pile-up and Dead Time Dither Intensity: ~10-2
Empirically measure all effects. Reduce Acceptance and vary Intensity by 20% Correct for density variation Calibrate BCM Solid target Linear Luminosity Monitor
12
Sensitivity: C1 and C2 Plots
World’s data 9 September 2010 Paul E. Reimer, PAVI 11
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.