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Physics
High Energy, Nuclear, Particle Physics
Resolutions of ATLAS Detectors
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[QUOTE="ChrisVer, post: 5439949, member: 494486"] Hi, I was looking for ATLAS detector parts resolutions (momentum for Inner Detector and Energy for the CAL systems). Does anyone have a nice reference? So far I found something like this for the ID: [itex] \sigma_{1/p_T} = 0.34 \text{TeV}^{-1} \Big(1 \oplus \frac{44 \text{GeV}}{p_T} \Big) [/itex] With ##\oplus## meaning that the two terms are added in quadrature and then the square root is taken. However this formula was from Run1 and before the installation of the B-Layer. Has the last altered this expression? Similarily for the ECAL: [itex] \frac{\sigma_E}{E(\text{GeV})} = \frac{a}{\sqrt{E(\text{GeV})}} \oplus b[/itex] [itex]a_{\text{design}}=10 \%[/itex] [itex]b_{\text{design}}=0.7 \%[/itex] or from tests on e, μ and pions: [itex]a_{\text{exper}}=10.7 \%[/itex] [itex]b_{\text{exper}}=0.5 \%[/itex] ([URL]http://iopscience.iop.org/article/10.1088/1748-0221/3/08/S08003/meta[/URL]) Do you know if they have changed (ref)? I don't think that the dependencies will be changed (1/p or sqrt(1/E) ) but the numbers in front probably have. Thanks. [/QUOTE]
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High Energy, Nuclear, Particle Physics
Resolutions of ATLAS Detectors
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