An ND 280 Tool Christian Hansen UVic Sep

An ND 280 Tool Christian Hansen UVic Sep 2006, Canadian ND 280 Soft Meeting, Triumf 1

Intro • Issei suggested what’s needed for short term studies • I’ve written TOACheating. Track e ter nam t e b a f o s n : Suggestio D E T N A W L STIL 2

TOACheating. Track • TOACheating. Track gets a TG 4 Trajectory • A TOATrack is being created from the TG 4 Trajectory (by using TFake. Recon) • Some extra information is saved by using TGeo. Manager – Where and in which volume the track starts – Where and with what momentum it enters the TPC TG 4 Trajectory TFake. Recon TGeo. Manager TOACheating. Track TOATrack More info 3

Header • Public member functions for To use my c lasses on ne source /hom ut: e/chansen/m y ND 280/user. S etu p. csh – check if first and last point is in FGD or TPC – get first and last point – get each TPC and FGD exit and entrance point – get length of track 4

Testing Chris’ hack • Run 5000 events from neut 003. out. chris. root • Look only at µ trajectories with ID = 1 • Look only at cheating tracks that enters TPC from starting in FGD • The z-coord of the entrance points in TPC 5

Testing Chris’ hack • Run 5000 events from neut 003. out. chris. root • Look only at µ trajectories with ID = 1 • Look only at cheating tracks that enters TPC from starting in FGD • The momentum of the entrance points in TPC 6

Testing Peter’s nd 280 mc change • Run 5000 events from neut 003. out. peter. root • Look only at µ trajectories with ID = 1 • Look only at cheating tracks that enters TPC from starting in FGD • The z-coord of the entrance points in TPC • Will probably be solved with Peter’s change also in the analysis 7

Peter’s change in the analysis • Peter has changed in the analysis code • Now also the TG 4 Trajectory. Points know about the volume • However, first test to run analysis using a. root file with these new TG 4 Trajectory. Points crashed • . . . under investigation. . . 8

Conclusions and Future Work Short TOACheating. Track Term Longer Term TND 280 Helix • Test it with real events • Use it for short term analysis • A helix to be used for tracking TOATrack. Helix • Defines a helix from a track RECPACK • Checked out but compilation errors More info • More info here: In my neut repository Beeing debugged In my fate repository on neut /home/chansen/my. ND 280/v 1 r 7 9 http: //hepweb. phys. uvic. ca/~hansen/T 2 K/ND 280 SOFT/analysis. html