000 02899nab a2200349 c 4500
001 vtls000527875
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008 181202|2015 xxu s a eng d
024 7 _a10.1140/epjc/s10052-015-3500-z
_2doi
035 _ato000527875
040 _aRU-ToGU
_brus
_cRU-ToGU
245 1 0 _aIdentification and energy calibration of hadronically decaying tau leptons with the ATLAS experiment in pp collisions at √s=8 TeV
_cG. Aad, B. Abbott, J. Abdallah [et.al.]
504 _aБиблиогр.: 49 назв.
520 3 _aThis paper describes the trigger and offline reconstruction, identification and energy calibration algorithms for hadronic decays of tau leptons employed for the data collected from pp collisions in 2012 with the ATLAS detector at the LHC center-of-mass energy√s = 8 TeV. The performance of these algorithms is measured in most cases with Z decays to tau leptons using the full 2012 dataset, corresponding to an integrated luminosity of 20.3 fb−1. An uncertainty on the offline reconstructed tau energy scale of 2–4%, depending on transverse energy and pseudorapidity, is achieved using two independent methods. The offline tau identification efficiency is measured with a precision of 2.5% for hadronically decaying tau leptons with one associated track, and of 4% for the case of three associated tracks, inclusive in pseudorapidity and for a visible transverse energy greater than 20 GeV. For hadronic tau lepton decays selected by offline algorithms, the tau trigger identification efficiency is measured with a precision of 2–8%, depending on the transverse energy. The performance of the tau algorithms, both offline and at the trigger level, is found to be stable with respect to the number of concurrent proton–proton interactions and has supported a variety of physics results using hadronically decaying tau leptons at ATLAS.
653 _aATLAS, детектор
653 _aБольшой адронный коллайдер
653 _aлептоны
653 _aстолкновение частиц
655 4 _aстатьи в журналах
_9681159
700 1 _aAad, G.
_9116039
700 1 _aAbdallah, J.
_9116040
700 1 _aChelkov, G. A.
_996983
700 1 _aAbbott, B.
_9116041
710 2 _aТомский государственный университет
_bРадиофизический факультет
_bНаучные подразделения РФФ
_9107063
773 0 _aThe European physical journal C
_d2015
_gVol. 75. P. 303 (1-33)
_x1434-6044
852 4 _aRU-ToGU
856 7 _uhttp://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000527875
908 _aстатья
999 _c389249