Abstract
| Original language | English |
|---|---|
| Journal | European Physical Journal C |
| Volume | 71 |
| Issue number | 4 |
| Publication status | Published - 2011 |
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In: European Physical Journal C, Vol. 71, No. 4, 2011.
Research output: Contribution to journal › Article › peer-review
TY - JOUR
T1 - Luminosity determination in pp collisions at root s=7 TeV using the ATLAS detector at the LHC
AU - Watts, Stephen
AU - Aad, [Unknown]
AU - Abbott, [Unknown]
AU - Abdallah, [Unknown]
AU - Abdelalim, [Unknown]
AU - Abdesselam, [Unknown]
AU - Abdinov, [Unknown]
AU - Abi, [Unknown]
AU - Abolins, [Unknown]
AU - Abramowicz, [Unknown]
AU - Abreu, [Unknown]
AU - Acerbi, [Unknown]
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AU - Ackers, [Unknown]
AU - Adams, [Unknown]
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AU - Aderholz, [Unknown]
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AU - Aefsky, [Unknown]
AU - guilar-Saavedra, [Unknown]
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AU - Ahles, [Unknown]
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AU - Banerjee, [Unknown]
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AU - Galtieri, [Unknown]
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AU - Battaglia, [Unknown]
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AU - Bauer, [Unknown]
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AU - Beccherle, [Unknown]
AU - Bechtle, [Unknown]
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AU - Beckingham, [Unknown]
AU - Becks, [Unknown]
AU - Beddall, [Unknown]
AU - Bednyakov, [Unknown]
AU - Bee, [Unknown]
AU - Begel, [Unknown]
AU - Harpaz, [Unknown]
AU - Behera, [Unknown]
AU - Beimforde, [Unknown]
AU - Belanger-Champagne, [Unknown]
AU - Belhorma, [Unknown]
AU - Bell, [Unknown]
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AU - Beltramello, [Unknown]
AU - Ben Ami, [Unknown]
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AU - Benchekroun, [Unknown]
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AU - Bendel, [Unknown]
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AU - Benekos, [Unknown]
AU - Benhammou, [Unknown]
AU - Benjamin, [Unknown]
AU - Benoit, [Unknown]
AU - Bensinger, [Unknown]
AU - Benslama, [Unknown]
AU - Bentvelsen, [Unknown]
AU - Berge, [Unknown]
AU - Kuutmann, [Unknown]
AU - Berger, [Unknown]
AU - Berghaus, [Unknown]
AU - Berglund, [Unknown]
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AU - Bernhard, [Unknown]
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AU - Bertin, [Unknown]
AU - Bertinelli, [Unknown]
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AU - Bhimji, [Unknown]
AU - Bianchi, [Unknown]
AU - Bianco, [Unknown]
AU - Biebel, [Unknown]
AU - Biesiada, [Unknown]
AU - Biglietti, [Unknown]
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AU - Bischof, [Unknown]
AU - Bitenc, [Unknown]
AU - Black, [Unknown]
AU - Blair, [Unknown]
AU - Blanchard, [Unknown]
AU - Blanchot, [Unknown]
AU - Blocker, [Unknown]
AU - Blocki, [Unknown]
AU - Blondel, [Unknown]
N1 - JAPR 20114
PY - 2011
Y1 - 2011
N2 - Measurements of luminosity obtained using the ATLAS detector during early running of the Large Hadron Collider (LHC) at root s = 7 TeV are presented. The luminosity is independently determined using several detectors and multiple algorithms, each having different acceptances, systematic uncertainties and sensitivity to background. The ratios of the luminosities obtained from these methods are monitored as a function of time and of mu, the average number of inelastic interactions per bunch crossing. Residual time- and mu-dependence between the methods is less than 2% for 0 <mu <2.5. Absolute luminosity calibrations, performed using beam separation scans, have a common systematic uncertainty of +/- 11%, dominated by the measurement of the LHC beam currents. After calibration, the luminosities obtained from the different methods differ by at most +/- 2%. The visible cross sections measured using the beam scans are compared to predictions obtained with the PYTHIA and PHOJET event generators and the ATLAS detector simulation
AB - Measurements of luminosity obtained using the ATLAS detector during early running of the Large Hadron Collider (LHC) at root s = 7 TeV are presented. The luminosity is independently determined using several detectors and multiple algorithms, each having different acceptances, systematic uncertainties and sensitivity to background. The ratios of the luminosities obtained from these methods are monitored as a function of time and of mu, the average number of inelastic interactions per bunch crossing. Residual time- and mu-dependence between the methods is less than 2% for 0 <mu <2.5. Absolute luminosity calibrations, performed using beam separation scans, have a common systematic uncertainty of +/- 11%, dominated by the measurement of the LHC beam currents. After calibration, the luminosities obtained from the different methods differ by at most +/- 2%. The visible cross sections measured using the beam scans are compared to predictions obtained with the PYTHIA and PHOJET event generators and the ATLAS detector simulation
M3 - Article
SN - 1434-6044
VL - 71
JO - European Physical Journal C
JF - European Physical Journal C
IS - 4
ER -