Sort by:[Date]
STAR Requests for new features of Drupal modules
Updated on Sat, 2008-03-22 01:29. Originally created by chajecki on 2008-03-22 01:17.
EEmc Gammas via conversion method, relaxing the hadronic veto cut
Updated on Tue, 2008-03-25 15:40. Originally created by jwebb on 2008-03-21 14:51.EEmc Gammas via conversion method, relaxing the hadronic veto cut
Abstract: Based on a quick MC study I decided to try relaxing the hadronic veto cut (i.e. Epost(R<0.3) < 0.2 MeV) in order to try recovering statistics. However, the results indicate a problem with doing this. Specifically the yield extraction fails and fails badly -- many more gammas "found" than the total yield input into the algo. We investigate this by releasing the hadronic veto cut and examining the resulting transverse shower-shape quantities. We then develop new cuts to replace the hadronic veto.
EEmc Gammas via conversion method, losses due to cuts
Updated on Fri, 2008-03-21 13:38. Originally created by jwebb on 2008-03-21 12:24.EEmc Gammas via conversion method, losses due to cuts
Abstract: We investigate losses in a single-photon MC event sample due to cuts applied in the conversion method. We find that most of the (potentially recoverable) losses are due to the "hadronic veto" cut using the postshower detector.
EEmc Gammas via conversion method, systematics
Updated on Thu, 2008-03-20 18:41. Originally created by jwebb on 2008-03-20 18:41.EEmc Gammas via conversion method, systematics
Abstract: We investigate the systematic uncertainties associated with the conversion method. Specifically, does the Monte Carlo indicate that the efficiency for passing the preshower-2 cut depends significantly on either pT or eta?
Non-Longitudinal Beam Components Systematic
Documentation for a systematic uncertainty in the Run 5 charged pion A_{LL} based on non-longitudinal components in the beam polarization vector.
Sketch of g/h discrimination in the Endcap
Updated on Wed, 2008-03-19 21:58. Originally created by balewski on 2008-03-19 21:22.List of key variables
EEmc Gammas via conversion method, chi2 comparison
Updated on Thu, 2008-03-20 11:26. Originally created by jwebb on 2008-03-19 14:22.EEmc Gammas via conversion method, chi2 comparison
Abstract: Using the conversion method discussed previously, we examine shower-shape variables in greater detail. Specifically, we compare χ2/ndf distributions using shower-shapes derived from MC and from identified η decays.
SMD QA Plots
Updated on Tue, 2008-03-18 14:58. Originally created by wleight on 2008-03-18 14:53.These plots were made from the 5000-event muon, photon, and piminus samples by running the tower clustering algorithm (with a seed threshold of 1 GeV and a cluster threshold for 4 GeV for photons a
links - tests
Updated on Tue, 2008-05-13 16:42. Originally created by chajecki on 2008-03-17 16:42.Update to Jet Study
Updated on Thu, 2008-03-13 08:21. Originally created by mattheww on 2008-03-13 08:21.I have updated some of the plots for the jet energy study I conducted. The following plots show the effect of a single type of particle on the jet energy we find.