On Mon, 19 Mar 2001, Hironori Ito wrote: > However, if you still suspect the other detector is > the cause of this dependence, talk to Bjorn or someone who is working on > TPM1 vertex if TPM1 has any multiplicity dependence. Hi Hiro, Michael et al. I'm sorry it took a few days for me to get into this - I've been busy with some non-brahms stuff. I have not noticed any mult-dependent offset in the ZDC vertex or in the TPC vertex, but it has been a while since I really checked this. I have very recent trees with all the needed data, so I'll look into it sometime tomorrow. One thing to remember here, of the top of my head, is that because of the nature of the TPC vertex it will always bias your event sample towards higher multiplicities. While this should not affect the z position itself, it would perhaps emphasize any perviously unseen mult dependance. I'll get back to you on this tomorrow :-) ------------------------------------------------ Bjorn H. Samset Master-student in Heavy Ion physics Mob: +47 92 05 19 98 Office: +47 22 85 77 62 Adr: Kri 2A709 Sognsveien 218 0864 Oslo
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