EPJ Web of Conferences
Volume 28, 2012Hadron Collider Physics Symposium, 2011
|Number of page(s)||3|
|Published online||06 June 2012|
Refined reconstruction and calibration of the missing transverse energy in the ATLAS detector
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The measurement of the missing transverse energy (ETmiss ) is fundamental for many analyses at LHC. Good ETmiss resolution and calibration are essential for searches of new physics as well as precise measurements. We describe a refined reconstruction and calibration of ETmiss developed by ATLAS and its performances on events containing Z and W bosons. The data sample was collected in proton-proton collisions at a center-of-mass energy of 7 TeV, and corresponds to an integrated luminosity of about 36 pb−1. The determination of the absolute scale of the ETmiss , fundamental for determining systematic uncertainties in all analysis involving ETmiss measurements, is also presented.
© Owned by the authors, published by EDP Sciences, 2012
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