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OD Calorimetry Study Jaewon Park University of Rochester MINERvA/Jupiter Group Meeting, Mar 8, 2006
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Bethe-Bloch formula (Energy loss of charged particles) dE/dx is assumed constant in the calculation. In actual case, it’ll be one source of nonlinearity Different particle has different dE/dx. In particle shower it’ll combination of them.
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Total Energy Loss Calculation particle ironscint
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Energy loss in each layer particle IDECALHCAL PbFe n: layer number (n=0,...,4)
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Energy resolution E (true) E (measured)
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E_measured vs. E_true
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E_measured vs. E_true (1 OD layer)
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Energy resolution Measured energy should collect all the energy? (y-intercept should be zero?) E (measured) E (true)
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Energy resolution E (true)E (measured)
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Resolution as # layer decrease, not calibrated ( CC, QE, old geom, 5.2PE/MeV)
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Resolution decrease due to leakage ( CC, QE, old geom, 5.2PE/MeV)
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Resolution as # layer decrease, not calibrated ( CC, QE, new geom, 5.2PE/MeV)
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Resolution decrease due to leakage ( CC, QE, new geom, 5.2PE/MeV)
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