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Re: Update on eta_c reconstruction with STT and TPC [message #12405 is a reply to message #12112] Sat, 30 July 2011 17:57 Go to previous messageGo to previous message
Dima Melnychuk is currently offline  Dima Melnychuk
Messages: 213
Registered: April 2004
Location: National Centre for Nucle...
first-grade participant
From: *play-internet.pl
Hi Felix,

the numbers I quoted in one of my post, i.e.

Efficiency | sigma(eta_c) | sigma(phi)
pion:
27.04% | 11.74 MeV | 3.61 MeV
kaon:
27.29% | 11.94 MeV | 3.55 MeV

is for 2000 events statistics, and producing higher number of events is rather time consuming. And here statistical errors for efficiency are around 1.3%. I plan till Monday to produce 5000 events with pion hypotheis, but it will not decrease errors below the difference between pion and kaon hypotheses I quote here.

Dima
 
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