- My blog
- Post new blog entry
- Top bloggers
- Recent posts
Sort by:[Date]
SsdEmbedding Maker
Updated on Wed, 2008-03-26 13:25. Originally created by bouchet on 2008-03-26 10:30.03/01 :
add protection in StSsdEmbeddingMaker for when no ssdhit table is found.
And in St_spa_Maker because then no sls_strip from StssdEmbeddingMaker is produced.
EEmc Gammas via conversion method, improving hadronic veto
Updated on Thu, 2008-03-27 12:51. Originally created by jwebb on 2008-03-25 18:19.Endcap Tower + SMD + Track cuts for photon identification.
Updated on Mon, 2008-03-24 15:09. Originally created by rcorliss on 2008-03-24 15:09.As promised, here is a first-pass set of cuts utilizing track information, and attempting to make more use of the SMD than the previous suite of cuts.
Comparison with Cross Sections
Updated on Wed, 2008-03-26 17:40. Originally created by jwebb on 2008-03-24 13:30.Abstract: We cross check prompt-photon yields against "known" cross sections, based on pythia expectations. The extracted yields are found to be within a factor of two
Tower + SMD cuts for photon identification
Updated on Tue, 2008-03-25 09:53. Originally created by rcorliss on 2008-03-24 10:28.This is still a work in progress, and more importantly, the pdf included here is not terribly useful without the comments that follow.
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.