Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/3079
Title: A strategy for a general search for new phenomena using data-derived signal regions and its application within the ATLAS experiment
Authors: The ATLAS Collaboration
Sultansoy, Saleh
Keywords: Collisions 
 jets 
proton–proton collisions
Issue Date: 2019
Publisher: Springer New York LLC
Source: ATLAS Collaboration. (2019). A strategy for a general search for new phenomena using data-derived signal regions and its application within the ATLAS experiment. The European Physical Journal C, 79(2), 120.
Abstract: This paper describes a strategy for a general search used by the ATLAS Collaboration to find potential indications of new physics. Events are classified according to their final state into many event classes. For each event class an automated search algorithm tests whether the data are compatible with the Monte Carlo simulated expectation in several distributions sensitive to the effects of new physics. The significance of a deviation is quantified using pseudo-experiments. A data selection with a significant deviation defines a signal region for a dedicated follow-up analysis with an improved background expectation. The analysis of the data-derived signal regions on a new dataset allows a statistical interpretation without the large look-elsewhere effect. The sensitivity of the approach is discussed using Standard Model processes and benchmark signals of new physics. As an example, results are shown for 3.2 fb- 1 of proton–proton collision data at a centre-of-mass energy of 13 TeV collected with the ATLAS detector at the LHC in 2015, in which more than 700 event classes and more than 10 5 regions have been analysed. No significant deviations are found and consequently no data-derived signal regions for a follow-up analysis have been defined. © 2019, CERN for the benefit of the ATLAS collaboration.
URI: https://hdl.handle.net/20.500.11851/3079
https://link.springer.com/article/10.1140%2Fepjc%2Fs10052-019-6540-y
ISSN: 14346044
Appears in Collections:Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümü / Department of Material Science & Nanotechnology Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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