Performance of pile-up mitigation techniques for jets in pp collisions at √s=8 TeV using the ATLAS detector

The large rate of multiple simultaneous proton–proton interactions, or pile-up, generated by the Large Hadron Collider in Run 1 required the development of many new techniques to mitigate the adverse effects of these conditions. This paper describes the methods employed in the ATLAS experiment to co...

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Detalles Bibliográficos
Autores principales: Alconada Verzini, María Josefina, Alonso, Francisco, Arduh, Francisco Anuar, Dova, María Teresa, Monticelli, Fernando Gabriel, Wahlberg, Hernán Pablo, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2016
Materias:
Física
Proton-proton interactions
Large Hadron Collider
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/86417
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-86417
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Proton-proton interactions
Large Hadron Collider
spellingShingle Física
Proton-proton interactions
Large Hadron Collider
Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
Performance of pile-up mitigation techniques for jets in pp collisions at √s=8 TeV using the ATLAS detector
topic_facet Física
Proton-proton interactions
Large Hadron Collider
description The large rate of multiple simultaneous proton–proton interactions, or pile-up, generated by the Large Hadron Collider in Run 1 required the development of many new techniques to mitigate the adverse effects of these conditions. This paper describes the methods employed in the ATLAS experiment to correct for the impact of pile-up on jet energy and jet shapes, and for the presence of spurious additional jets, with a primary focus on the large 20.3 fb- 1data sample collected at a centre-of-mass energy of s=8TeV. The energy correction techniques that incorporate sophisticated estimates of the average pile-up energy density and tracking information are presented. Jet-to-vertex association techniques are discussed and projections of performance for the future are considered. Lastly, the extension of these techniques to mitigate the effect of pile-up on jet shapes using subtraction and grooming procedures is presented.
format Articulo
Articulo
author Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_facet Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_sort Alconada Verzini, María Josefina
title Performance of pile-up mitigation techniques for jets in pp collisions at √s=8 TeV using the ATLAS detector
title_short Performance of pile-up mitigation techniques for jets in pp collisions at √s=8 TeV using the ATLAS detector
title_full Performance of pile-up mitigation techniques for jets in pp collisions at √s=8 TeV using the ATLAS detector
title_fullStr Performance of pile-up mitigation techniques for jets in pp collisions at √s=8 TeV using the ATLAS detector
title_full_unstemmed Performance of pile-up mitigation techniques for jets in pp collisions at √s=8 TeV using the ATLAS detector
title_sort performance of pile-up mitigation techniques for jets in pp collisions at √s=8 tev using the atlas detector
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/86417
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