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Hydrogen Analysis Software

This document outlines the developments in hydrogen analysis software spearheaded by Chris Crawford and Jason Seely. It covers key topics like the complete simulation cycle for hydrogen analysis, including the new event generators MASCGEN and MASCARAD, radiative corrections, and improvements in analyzing polarization asymmetry. The paper highlights the implementation of a correction scheme for arbitrary polarization angles, insights from the latest simulation results, and the ongoing work to integrate the software with BlastMC and BlastLib for enhanced analysis capabilities.

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Hydrogen Analysis Software

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  1. Hydrogen Analysis Software Chris Crawford Jason Seely April 12, 2002 • Topics: • Generator/Reconstruction (Seely) • Radiative Corrections (Crawford) Hydrogen Analysis Software

  2. 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

  3. 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

  4. Asymmetries Hydrogen Analysis Software

  5. Reconstruction Hydrogen Analysis Software

  6. Monte Carlo Hydrogen Analysis Software

  7. 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

  8. MASCARAD • Covariant calculation with no cutoff parameter • A. Afanasev et.al., Phys.Rev.D 64,113009 Hydrogen Analysis Software

  9. 440 MeV R.C. Hydrogen Analysis Software

  10. 880 MeV R.C. Hydrogen Analysis Software

  11. MascGen • Proton and photon kinematics • inelasticity v affects w Hydrogen Analysis Software

  12. Born Events Theta Proton Momentum (GeV) Hydrogen Analysis Software

  13. Radiative Events Theta Proton Momentum (GeV) Hydrogen Analysis Software

  14. 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

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