Home » Physics Working Group » Spin » Spin/Cold-QCD Older Physics Analysis » Analyses from the early years » EEMC Direct Photon Studies (Pibero Djawotho, 2006-2008)

2007.02.05 Reconstructed/Monte Carlo Photon Energy

Updated on Fri, 2010-07-16 11:20. Originally created by seluzhen on 2010-07-16 10:20. Under:

 

Reconstructed/Monte Carlo Photon Energy

This study is motivated by Weihong's photon energy loss study where an eta-dependence of reconstructed photon energy to generated photon energy in EEMC simulation was observed.

In this study, the eta-dependence is investigated by running the EEMC slow simulator with the new readjusted weights for the preshower and postshower layers of the EEMC. Details on this are here.

    • Fit to a constant

    • Fit to a line

    • Fit to a quadratic

    • Comparison between Weihong's and Pibero's results

    The parameters from the fits are used to plot the fit functions for comparison between Weihong's and Pibero's results.

      • Constant

      • Linear

      • Quadratic

    • Conclusion

    While the adjusted weights for the different EEMC layers contribute to bringing the ratio of reconstructed energy to generated energy closer to unity, they do not remove the eta-dependence.

    • References

    1. M. Albrow et al., NIM A 480 (2002) 524-546.
    2. R. Blair et al. (CDF Collaboration), CDF II Technical Design Report, FERMILAB-PUB-96-390-E, 1996.
    Pibero Djawotho
    Last updated Mon Feb 5 10:10:42 EST 2007
»