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NCC Task Force

Richard SetoNCC Task Force Meeting

Nov 2, 2007BNL

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Agenda

chic update – Rich/Sky π0 update trigger talk - John AOB

Next Wed (Core week) I will give an update

Would like information from pi0/chic/…. folks etc by Tues

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Chic

Problem from last time Merge

looks like hijing bkg (single chic+hijing pp) has 2 times more ncc hits than pythia chic event in a pp collision

Look at raw input hijing (zebra output) zeb2root converter pythia – anapythia from mickey

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hijing

hijing

1000 pp Events min bias hijing(left) vs pythia(right)

160 chargedpi/event

230 chargedpi/event

pythia

pythia

msel 1mstp 91 1 – gausian intrinic ktparp 91 1.5 – kt valuemstp 22 1 – use k factorparp 31 2.5 - kfactor

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Interestingly if you require a chic the two are not so bad i.e.merge hijing pp with single chic (rv) = pythia with chic

156 chargedpi/event

pythiaw chic

pythiaw chic

hijing

hijing

160 chargedpi/event