140 likes | 234 Views
Hydrogen Analysis Software. Chris Crawford Jason Seely April 12, 2002 Topics: Generator/Reconstruction (Seely) Radiative Corrections (Crawford). Reconstruction. Complete simulation cycle Generator (epel) M.C. (blastmc) Recon. (BlastLib) Analysis (J. Seely)
E N D
Hydrogen Analysis Software Chris Crawford Jason Seely April 12, 2002 • Topics: • Generator/Reconstruction (Seely) • Radiative Corrections (Crawford) Hydrogen Analysis Software
Reconstruction • Complete simulation cycle • Generator (epel) • M.C. (blastmc) • Recon. (BlastLib) • Analysis (J. Seely) • Studies on polarization asymmetry • New correction scheme (J. Seely) • Improvements made at low Q^2 Hydrogen Analysis Software
z B z B Polarization Asymmetry • Polarization depends on spin alignment along B • A1 asymmetry fromhigher polarizations • A2 from lower pol. • Average the two super-ratios • Simulation is only ideal case Hydrogen Analysis Software
Asymmetries Hydrogen Analysis Software
Reconstruction Hydrogen Analysis Software
Monte Carlo Hydrogen Analysis Software
Radiative Corrections • Results from MASCARAD 1.0 • Modification for arbitrary polarization angle • New event generator MASCGEN • Work in progress • Hard photon and proton kinematics • Feed into BlastMC, and BlastLib2 • Add multiple scattering Hydrogen Analysis Software
MASCARAD • Covariant calculation with no cutoff parameter • A. Afanasev et.al., Phys.Rev.D 64,113009 Hydrogen Analysis Software
440 MeV R.C. Hydrogen Analysis Software
880 MeV R.C. Hydrogen Analysis Software
MascGen • Proton and photon kinematics • inelasticity v affects w Hydrogen Analysis Software
Born Events Theta Proton Momentum (GeV) Hydrogen Analysis Software
Radiative Events Theta Proton Momentum (GeV) Hydrogen Analysis Software
Conclusion • All components of analysis cyclehave been implemented • A new R.C. event generator has been written and compared with MASCARAD • Still need to run event generator through BlastMC and BlastLib Hydrogen Analysis Software