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EMC resolution [message #15567] |
Fri, 11 October 2013 14:05 |
binsong
Messages: 10 Registered: December 2011
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occasional visitor |
From: *in2p3.fr
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hi,
i find some problems with the EMC energy resolution. Maybe there are some bugs.
I do the simulations for electron and photon with box generator with the latest trunk at both barrel region (80deg--100deg) and forward region (12deg--20deg).
i get the reconstructed energy(E_rec) by using GetEmcRawEnergy(),
then i plot (E_mc-E_rec)/E_mc for each simulation.
but i find the resolution sigma/E much smaller then the result in TDR:
electron_barrel: 1.18%
electron_forward: 1.58%
photon_barrel: 1.07%
photon_forward: 1.39%
and in TDR, the resolution for photon at 1GeV is more than 2%.
you can find all the four plots in attachment.
does someone know this problem?
Binsong
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