# Difference: LArCaloPublicResults2009 (1 vs. 5)

#### Revision 52010-12-06 - PatrickJussel

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# Public Liquid-Argon Calorimeter Plots for 2009 Data

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Data were collected in the special 32 sample readout mode; the prediction shown
is the one used for energy reconstruction around the peak sample.
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Collision data from the 23rd of November 2009 are included in this plot.
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Splash data from the 23rd of November 2009 are included in this plot.
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Splash data from the 23rd of November 2009 are included in this plot.
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Splash data from the 23rd of November 2009 are included in this plot.
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Splash events data from the 23rd of November 2009 are included in this plot.
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The entry in LVL1 Calo Et correlation to Offline plot is on Trigger Tower (0.1*0.1 in eta-phi range) bases, L1Et is calculated from the L1Calo ADC readout using (MaxADC-Pedestal)/4., which MaxADC is fitted by a parabola around the peak. And pedestal is calculated from recent run 136379 random events. LArgEt is the summation of energy from the cells connected to the corresponding trigger tower, convert to transverse energy. Trigger Towers with both L1Et and LArgEt greater than 3 GeV are kept. The resolution of LVL1 Calo Et with respect to LArgEt is divieded into LArgEt bin [3,5],[5,9],[9,17],[17,33],[33,65]GeV, and in each bin, the resolution fitted by a Gaussion. These plots are produced from data09_1beam physics_L1Calo.
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minimum bias triggers over time, as shown in other ATLAS plots.
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#### Revision 42010-06-29 - CarolineCollard

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#### Revision 32010-06-29 - CarolineCollard

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# Public Liquid-Argon Calorimeter Plots for 2009 Data

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<!--For significant updates to the topic, consider adding your 'signature' (beneath this editing box)-->
-- IsaWingerter - 13-May-2010
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-- MainCarolineCollard - 29-Jun-2010

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## Level1 CALO trigger

 LVL1 CALO plots The entry in LVL1 Calo Et correlation to Offline plot is on Trigger Tower (0.1*0.1 in eta-phi range) bases, L1Et is calculated from the L1Calo ADC readout using (MaxADC-Pedestal)/4., which MaxADC is fitted by a parabola around the peak. And pedestal is calculated from recent run 136379 random events. LArgEt is the summation of energy from the cells connected to the corresponding trigger tower, convert to transverse energy. Trigger Towers with both L1Et and LArgEt greater than 3 GeV are kept. The resolution of LVL1 Calo Et with respect to LArgEt is divieded into LArgEt bin [3,5],[5,9],[9,17],[17,33],[33,65]GeV, and in each bin, the resolution fitted by a Gaussion. These plots are produced from data09_1beam physics_L1Calo. Trigger vs standard R/O eps Trigger Transverse Energy Resolution eps ... ...

## Energy Flow in Forward Calorimeter vs Time

 Run 142193 was taken on December 12th2009, during LHC beam activity. Events studied were recorded in the minimum bias stream. The ATLAS Liquid Argon Forward Calorimeter was on at nominal voltage during the entire run. No cuts on neither the energy nor the timing were applied. The red markers correspond to the total energy deposited in one of the LAr FCal sides (A) integrated over one luminosity block as a function of time. One luminosity block has a typical duration of 2min. The shaded yellow area covers the stable beam time range. The blue markers identify, within the stable beam period, known pathological luminosity blocks with short duration (forced lumi block start) or trigger inhibit. Information was extracted from random trigger rate variations. This approach is equivalent to counting events triggered by the minimum bias triggers over time, as shown in other ATLAS plots. E vs time eps

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