000 02444nab a2200337 c 4500
001 vtls000622812
003 RU-ToGU
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007 cr |
008 180315|2016 enk s a eng dd
024 7 _a10.1088/1748-0221/11/04/P04008
_2doi
035 _ato000622812
040 _aRU-ToGU
_brus
_cRU-ToGU
245 1 0 _aPerformance of b-jet identification in the ATLAS experiment
_cG. Aad, B. Abbott, J. Abdallah [et.al.]
504 _aБиблиогр.: 78 назв.
520 3 _aThe identification of jets containing b hadrons is important for the physics programme of the ATLAS experiment at the Large Hadron Collider. Several algorithms to identify jets containing b hadrons are described, ranging from those based on the reconstruction of an inclusive secondary vertex or the presence of tracks with large impact parameters to combined tagging algorithms making use of multi-variate discriminants. An independent b-tagging algorithm based on the reconstruction of muons inside jets as well as the b-tagging algorithm used in the online trigger are also presented. The b-jet tagging efficiency, the c-jet tagging efficiency and the mistag rate for light flavour jets in data have been measured with a number of complementary methods. The calibration results are presented as scale factors defined as the ratio of the efficiency (or mistag rate) in data to that in simulation. In the case of b jets, where more than one calibration method exists, the results from the various analyses have been combined taking into account the statistical correlation as well as the correlation of the sources of systematic uncertainty.
653 _aATLAS, детектор
653 _aБольшой адронный коллайдер
653 _aпротон-протонные столкновения
655 4 _aстатьи в журналах
_9879358
700 1 _aAad, G.
_9116039
700 1 _aAbdallah, J.
_9116040
700 1 _aChelkov, G. A.
_996983
700 1 _aVaniachine, A.
_9159188
700 1 _aAbbott, B.
_9116041
773 0 _tJournal of instrumentation : electronic journal
_d2016
_gVol. 11, № 4. P. P04008 (1-123)
_x1748-0221
852 4 _aRU-ToGU
856 7 _uhttp://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000622812
908 _aстатья
999 _c432986