1 Ocak 2021 Dergi makalesi Açık Erişim

CERN İşbirliği

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    "description": "<p>Jet substructure has provided new opportunities for searches and measurements at the LHC, and has seen continuous development since the optimization of the large-radius jet definition used by ATLAS was performed during Run 1. A range of new inputs to jet reconstruction, pile-up mitigation techniques and jet grooming algorithms motivate an optimisation of large-radius jet reconstruction for ATLAS. In this paper, this optimisation procedure is presented, and the performance of a wide range of large-radius jet definitions is compared. The relative performance of these jet definitions is assessed using metrics such as their pileup stability, ability to identify hadronically decaying W bosons and top quarks with large transverse momenta. A new type of jet input object, called a 'unified flow object' is introduced which combines calorimeter- and inner-detector-based signals in order to achieve optimal performance across a wide kinematic range. Large-radius jet definitions are identified which significantly improve on the current ATLAS baseline definition, and their modelling is studied using pp collisions recorded by the ATLAS detector at     $\\sqrt{s}=13\\phantom{\\rule{3.33333pt}{0ex}}\\text{TeV}$   during 2017.</p>", 
    "doi": "10.1140/epjc/s10052-021-09054-3", 
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      "title": "European Physical Journal C", 
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    "publication_date": "2021-01-01", 
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    "title": "Optimisation of large-radius jet reconstruction for the ATLAS detector in 13 TeV proton\u2013proton collisions"
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