Hi Trine, > We've looked very briefly and qualitatively at vertex correlations > here in Oslo too, and we see nice correlations between BB and ZDC and > between BB / ZDC and track intersections with the beam plane (much like > Claus' plots) - there's only the question of an offset. I don't agree with this. Last year the |bbVtxZ - zdcVtxZ| gave a peak with a sigma of 3.8 cm (Bjorns thesis, page 73), so I don't think we should call it a "nice correlation" when we get a sigma of 15 cm - it's not only a question of an offset, it's unfortunately also a question of new time calibrations. Cheers, 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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