I forgot to communicate one change I did in the BrModuleMatchTrack. It has been observed that the momentum dependence of the Dang matching parameter can be avoided by a small rotation og the local tracks. I've added a method to the BrModuleMatchTrack where this rotation can be set: SetRotationFactors(fFrontRot, fBackRot) In the code the angles are changed like this: ... tpcAngleBack.SetX(BackTrack_p->GetAlpha()[0]*fBackRot); ... tpcAngleFront.SetX(FrontTrack_p->GetAlpha()[0]*fFrontRot); ... By default the rotation is 1, so if you don't use this method you'll not notice the change. But for example by setting SetRotationFactors(1.01,1.01) in the ffs matching the dang vs p will be much better. Ian and Flemming probably have some comments on this... Claus +-------------------------------------------------------------+ | Claus Jørgensen | | Cand. Scient. Phone : (+45) 33 32 49 49 | | Cell : (+45) 27 28 49 49 | | Niels Bohr Institute, Ta-2, Office : (+45) 35 32 53 07 | | Blegdamsvej 17, DK-2100, E-mail : ekman@nbi.dk | | University of Copenhagen Home : www.nbi.dk/~ekman/ | +-------------------------------------------------------------+
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