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Test of muon momentum resolution with Jan14 release [message #15866] Wed, 12 February 2014 17:54 Go to previous message
binsong is currently offline  binsong
Messages: 10
Registered: December 2011
occasional visitor
From: *in2p3.fr
Dear all,

I have checked the momentum resolution of muon for two angles with the new release (p = 1GeV/c, theta = 15deg and theta = 60 deg).

the result at Barrel region is normal, deltap/p = 1.56%, comparable to the result from TDR.

But, for the Forward region, I found deltap/p = 2.1%, very different from the TDR result which is about 1.5%.

Then, I also checked them with the apr13 release, both of them seem correct.

Has anyone some idea, why the momentum resolution in forward between apr13 and jan14 changes a lot?

Binsong
 
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