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

G Aad; B. Abbott; J Abdallah; O Abdinov; R Aben; M Abolins; Torsten Åkesson; Simona Bocchetta; LENE BRYNGEMARK; Caterina Doglioni; Anders Floderus; Anthony Hawkins; Vincent Hedberg; Jenny Ivarsson; Göran Jarlskog; Else Lytken; Ulf Mjörnmark; Oxana Smirnova; Oleksandr Viazlo; ATLAS Collaboration

doi:10.1140/epjc/s10052-016-4395-z

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

G Aad, B. Abbott, J Abdallah, O Abdinov, R Aben, M Abolins, Torsten Åkesson, Simona Bocchetta, LENE BRYNGEMARK, Caterina Doglioni, Anders Floderus, Anthony Hawkins, Vincent Hedberg, Jenny Ivarsson, Göran Jarlskog, Else Lytken, Ulf Mjörnmark, Oxana Smirnova, Oleksandr Viazlo, ATLAS Collaboration

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Abstract

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. © 2016, CERN for the benefit of the ATLAS collaboration.

Original language	English
Article number	581
Journal	European Physical Journal C
Volume	76
Issue number	11
DOIs	https://doi.org/10.1140/epjc/s10052-016-4395-z
Publication status	Published - 2016

Bibliographical note

Cited By :8

Export Date: 18 July 2017

Subject classification (UKÄ)

Subatomic Physics

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10.1140/epjc/s10052-016-4395-z

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Aad, G., Abbott, B., Abdallah, J., Abdinov, O., Aben, R., Abolins, M., Åkesson, T., Bocchetta, S., BRYNGEMARK, LENE., Doglioni, C., Floderus, A., Hawkins, A., Hedberg, V., Ivarsson, J., Jarlskog, G., Lytken, E., Mjörnmark, U., Smirnova, O., Viazlo, O., & ATLAS Collaboration (2016). Performance of pile-up mitigation techniques for jets in pp collisions at √s=8 TeV using the ATLAS detector. European Physical Journal C, 76(11), Article 581. https://doi.org/10.1140/epjc/s10052-016-4395-z

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

abstract = "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. {\textcopyright} 2016, CERN for the benefit of the ATLAS collaboration.",

author = "G Aad and B. Abbott and J Abdallah and O Abdinov and R Aben and M Abolins and Torsten {\AA}kesson and Simona Bocchetta and LENE BRYNGEMARK and Caterina Doglioni and Anders Floderus and Anthony Hawkins and Vincent Hedberg and Jenny Ivarsson and G{\"o}ran Jarlskog and Else Lytken and Ulf Mj{\"o}rnmark and Oxana Smirnova and Oleksandr Viazlo and {ATLAS Collaboration}",

note = "Cited By :8 Export Date: 18 July 2017",

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doi = "10.1140/epjc/s10052-016-4395-z",

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Aad, G, Abbott, B, Abdallah, J, Abdinov, O, Aben, R, Abolins, M, Åkesson, T, Bocchetta, S, BRYNGEMARK, LENE , Doglioni, C, Floderus, A, Hawkins, A, Hedberg, V, Ivarsson, J, Jarlskog, G , Lytken, E, Mjörnmark, U, Smirnova, O, Viazlo, O & ATLAS Collaboration 2016, 'Performance of pile-up mitigation techniques for jets in pp collisions at √s=8 TeV using the ATLAS detector', European Physical Journal C, vol. 76, no. 11, 581. https://doi.org/10.1140/epjc/s10052-016-4395-z

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T1 - Performance of pile-up mitigation techniques for jets in pp collisions at √s=8 TeV using the ATLAS detector

AU - Aad, G

AU - Abbott, B.

AU - Abdallah, J

AU - Abdinov, O

AU - Aben, R

AU - Abolins, M

AU - Åkesson, Torsten

AU - Bocchetta, Simona

AU - BRYNGEMARK, LENE

AU - Doglioni, Caterina

AU - Floderus, Anders

AU - Hawkins, Anthony

AU - Hedberg, Vincent

AU - Ivarsson, Jenny

AU - Jarlskog, Göran

AU - Lytken, Else

AU - Mjörnmark, Ulf

AU - Smirnova, Oxana

AU - Viazlo, Oleksandr

AU - ATLAS Collaboration

N1 - Cited By :8 Export Date: 18 July 2017

PY - 2016

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AB - 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. © 2016, CERN for the benefit of the ATLAS collaboration.

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DO - 10.1140/epjc/s10052-016-4395-z

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SN - 1434-6044

VL - 76

JO - European Physical Journal C

JF - European Physical Journal C

IS - 11

M1 - 581

ER -

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

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