Search for long-lived neutral particles in pp collisions at √s=13TeV that decay into displaced hadronic jets in the ATLAS calorimeter

M Aaboud; Torsten Åkesson; Simona Bocchetta; Lene Bryngemark; Eric Corrigan; Caterina Doglioni; Kristian Gregersen; Eva Brottmann Hansen; Vincent Hedberg; Göran Jarlskog; Charles Kalderon; Edgar Kellermann; Balazs Konya; Else Lytken; Katja Mankinen; Caterina Marcon; Ulf Mjörnmark; Geoffrey Mullier; Ruth Pöttgen; Trine Poulsen; Eleni Skorda; Oxana Smirnova; L Zwalinski; ATLAS Collaboration

doi:10.1140/epjc/s10052-019-6962-6

Search for long-lived neutral particles in pp collisions at √s=13TeV that decay into displaced hadronic jets in the ATLAS calorimeter

M Aaboud, Torsten Åkesson, Simona Bocchetta, Lene Bryngemark, Eric Corrigan, Caterina Doglioni, Kristian Gregersen, Eva Brottmann Hansen, Vincent Hedberg, Göran Jarlskog, Charles Kalderon, Edgar Kellermann, Balazs Konya, Else Lytken, Katja Mankinen, Caterina Marcon, Ulf Mjörnmark, Geoffrey Mullier, Ruth Pöttgen, Trine PoulsenEleni Skorda, Oxana Smirnova, L Zwalinski, ATLAS Collaboration

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Abstract

This paper describes a search for pairs of neutral, long-lived particles decaying in the ATLAS calorimeter. Long-lived particles occur in many extensions to the Standard Model and may elude searches for new promptly decaying particles. The analysis considers neutral, long-lived scalars with masses between 5 and 400 GeV, produced from decays of heavy bosons with masses between 125 and 1000 GeV, where the long-lived scalars decay into Standard Model fermions. The analysis uses either 10.8fb-1 or 33.0fb-1 of data (depending on the trigger) recorded in 2016 at the LHC with the ATLAS detector in proton–proton collisions at a centre-of-mass energy of 13 TeV. No significant excess is observed, and limits are reported on the production cross section times branching ratio as a function of the proper decay length of the long-lived particles. © 2019, CERN for the benefit of the ATLAS collaboration.

Original language	English
Article number	481
Journal	European Physical Journal C
Volume	79
Issue number	6
DOIs	https://doi.org/10.1140/epjc/s10052-019-6962-6
Publication status	Published - 2019

Bibliographical note

Export Date: 1 July 2019

Subject classification (UKÄ)

Subatomic Physics

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10.1140/epjc/s10052-019-6962-6

Cite this

Aaboud, M., Åkesson, T., Bocchetta, S., Bryngemark, L., Corrigan, E., Doglioni, C., Gregersen, K., Brottmann Hansen, E., Hedberg, V., Jarlskog, G., Kalderon, C., Kellermann, E., Konya, B., Lytken, E., Mankinen, K., Marcon, C., Mjörnmark, U., Mullier, G., Pöttgen, R., ... ATLAS Collaboration (2019). Search for long-lived neutral particles in pp collisions at √s=13TeV that decay into displaced hadronic jets in the ATLAS calorimeter. European Physical Journal C, 79(6), Article 481. https://doi.org/10.1140/epjc/s10052-019-6962-6

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title = "Search for long-lived neutral particles in pp collisions at √s=13TeV that decay into displaced hadronic jets in the ATLAS calorimeter",

abstract = "This paper describes a search for pairs of neutral, long-lived particles decaying in the ATLAS calorimeter. Long-lived particles occur in many extensions to the Standard Model and may elude searches for new promptly decaying particles. The analysis considers neutral, long-lived scalars with masses between 5 and 400 GeV, produced from decays of heavy bosons with masses between 125 and 1000 GeV, where the long-lived scalars decay into Standard Model fermions. The analysis uses either 10.8fb-1 or 33.0fb-1 of data (depending on the trigger) recorded in 2016 at the LHC with the ATLAS detector in proton–proton collisions at a centre-of-mass energy of 13 TeV. No significant excess is observed, and limits are reported on the production cross section times branching ratio as a function of the proper decay length of the long-lived particles. {\textcopyright} 2019, CERN for the benefit of the ATLAS collaboration.",

author = "M Aaboud and Torsten {\AA}kesson and Simona Bocchetta and Lene Bryngemark and Eric Corrigan and Caterina Doglioni and Kristian Gregersen and {Brottmann Hansen}, Eva and Vincent Hedberg and G{\"o}ran Jarlskog and Charles Kalderon and Edgar Kellermann and Balazs Konya and Else Lytken and Katja Mankinen and Caterina Marcon and Ulf Mj{\"o}rnmark and Geoffrey Mullier and Ruth P{\"o}ttgen and Trine Poulsen and Eleni Skorda and Oxana Smirnova and L Zwalinski and {ATLAS Collaboration}",

note = "Export Date: 1 July 2019",

year = "2019",

doi = "10.1140/epjc/s10052-019-6962-6",

language = "English",

volume = "79",

journal = "European Physical Journal C",

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Aaboud, M, Åkesson, T, Bocchetta, S, Bryngemark, L, Corrigan, E, Doglioni, C, Gregersen, K, Brottmann Hansen, E, Hedberg, V , Jarlskog, G, Kalderon, C, Kellermann, E, Konya, B , Lytken, E, Mankinen, K, Marcon, C, Mjörnmark, U, Mullier, G, Pöttgen, R, Poulsen, T, Skorda, E, Smirnova, O, Zwalinski, L & ATLAS Collaboration 2019, 'Search for long-lived neutral particles in pp collisions at √s=13TeV that decay into displaced hadronic jets in the ATLAS calorimeter', European Physical Journal C, vol. 79, no. 6, 481. https://doi.org/10.1140/epjc/s10052-019-6962-6

TY - JOUR

T1 - Search for long-lived neutral particles in pp collisions at √s=13TeV that decay into displaced hadronic jets in the ATLAS calorimeter

AU - Aaboud, M

AU - Åkesson, Torsten

AU - Bocchetta, Simona

AU - Bryngemark, Lene

AU - Corrigan, Eric

AU - Doglioni, Caterina

AU - Gregersen, Kristian

AU - Brottmann Hansen, Eva

AU - Hedberg, Vincent

AU - Jarlskog, Göran

AU - Kalderon, Charles

AU - Kellermann, Edgar

AU - Konya, Balazs

AU - Lytken, Else

AU - Mankinen, Katja

AU - Marcon, Caterina

AU - Mjörnmark, Ulf

AU - Mullier, Geoffrey

AU - Pöttgen, Ruth

AU - Poulsen, Trine

AU - Skorda, Eleni

AU - Smirnova, Oxana

AU - Zwalinski, L

AU - ATLAS Collaboration

N1 - Export Date: 1 July 2019

PY - 2019

Y1 - 2019

N2 - This paper describes a search for pairs of neutral, long-lived particles decaying in the ATLAS calorimeter. Long-lived particles occur in many extensions to the Standard Model and may elude searches for new promptly decaying particles. The analysis considers neutral, long-lived scalars with masses between 5 and 400 GeV, produced from decays of heavy bosons with masses between 125 and 1000 GeV, where the long-lived scalars decay into Standard Model fermions. The analysis uses either 10.8fb-1 or 33.0fb-1 of data (depending on the trigger) recorded in 2016 at the LHC with the ATLAS detector in proton–proton collisions at a centre-of-mass energy of 13 TeV. No significant excess is observed, and limits are reported on the production cross section times branching ratio as a function of the proper decay length of the long-lived particles. © 2019, CERN for the benefit of the ATLAS collaboration.

AB - This paper describes a search for pairs of neutral, long-lived particles decaying in the ATLAS calorimeter. Long-lived particles occur in many extensions to the Standard Model and may elude searches for new promptly decaying particles. The analysis considers neutral, long-lived scalars with masses between 5 and 400 GeV, produced from decays of heavy bosons with masses between 125 and 1000 GeV, where the long-lived scalars decay into Standard Model fermions. The analysis uses either 10.8fb-1 or 33.0fb-1 of data (depending on the trigger) recorded in 2016 at the LHC with the ATLAS detector in proton–proton collisions at a centre-of-mass energy of 13 TeV. No significant excess is observed, and limits are reported on the production cross section times branching ratio as a function of the proper decay length of the long-lived particles. © 2019, CERN for the benefit of the ATLAS collaboration.

U2 - 10.1140/epjc/s10052-019-6962-6

DO - 10.1140/epjc/s10052-019-6962-6

M3 - Article

SN - 1434-6044

VL - 79

JO - European Physical Journal C

JF - European Physical Journal C

IS - 6

M1 - 481

ER -

Search for long-lived neutral particles in pp collisions at √s=13TeV that decay into displaced hadronic jets in the ATLAS calorimeter

Abstract

Bibliographical note

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