Evidence for the production of three massive vector bosons with the ATLAS detector

G Aad; 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:10.1016/j.physletb.2019.134913

Evidence for the production of three massive vector bosons with the ATLAS detector

G Aad, 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

A search for the production of three massive vector bosons in proton–proton collisions is performed using data at s=13 TeV recorded with the ATLAS detector at the Large Hadron Collider in the years 2015–2017, corresponding to an integrated luminosity of 79.8 fb−1. Events with two same-sign leptons ℓ (electrons or muons) and at least two reconstructed jets are selected to search for WWW→ℓνℓνqq. Events with three leptons without any same-flavour opposite-sign lepton pairs are used to search for WWW→ℓνℓνℓν, while events with three leptons and at least one same-flavour opposite-sign lepton pair and one or more reconstructed jets are used to search for WWZ→ℓνqqℓℓ. Finally, events with four leptons are analysed to search for WWZ→ℓνℓνℓℓ and WZZ→qqℓℓℓℓ. Evidence for the joint production of three massive vector bosons is observed with a significance of 4.1 standard deviations, where the expectation is 3.1 standard deviations. © 2019 The Author(s)

Original language	English
Article number	134913
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	798
DOIs	https://doi.org/10.1016/j.physletb.2019.134913
Publication status	Published - 2019

Subject classification (UKÄ)

Subatomic Physics

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10.1016/j.physletb.2019.134913

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Aad, G., 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). Evidence for the production of three massive vector bosons with the ATLAS detector. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 798, Article 134913. https://doi.org/10.1016/j.physletb.2019.134913

@article{196a14e678f442ca80ac2122b5a9a6ed,

title = "Evidence for the production of three massive vector bosons with the ATLAS detector",

abstract = "A search for the production of three massive vector bosons in proton–proton collisions is performed using data at s=13 TeV recorded with the ATLAS detector at the Large Hadron Collider in the years 2015–2017, corresponding to an integrated luminosity of 79.8 fb−1. Events with two same-sign leptons ℓ (electrons or muons) and at least two reconstructed jets are selected to search for WWW→ℓνℓνqq. Events with three leptons without any same-flavour opposite-sign lepton pairs are used to search for WWW→ℓνℓνℓν, while events with three leptons and at least one same-flavour opposite-sign lepton pair and one or more reconstructed jets are used to search for WWZ→ℓνqqℓℓ. Finally, events with four leptons are analysed to search for WWZ→ℓνℓνℓℓ and WZZ→qqℓℓℓℓ. Evidence for the joint production of three massive vector bosons is observed with a significance of 4.1 standard deviations, where the expectation is 3.1 standard deviations. {\textcopyright} 2019 The Author(s)",

author = "G Aad 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}",

year = "2019",

doi = "10.1016/j.physletb.2019.134913",

language = "English",

volume = "798",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier",

}

Aad, G, 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, 'Evidence for the production of three massive vector bosons with the ATLAS detector', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 798, 134913. https://doi.org/10.1016/j.physletb.2019.134913

TY - JOUR

T1 - Evidence for the production of three massive vector bosons with the ATLAS detector

AU - Aad, G

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

PY - 2019

Y1 - 2019

N2 - A search for the production of three massive vector bosons in proton–proton collisions is performed using data at s=13 TeV recorded with the ATLAS detector at the Large Hadron Collider in the years 2015–2017, corresponding to an integrated luminosity of 79.8 fb−1. Events with two same-sign leptons ℓ (electrons or muons) and at least two reconstructed jets are selected to search for WWW→ℓνℓνqq. Events with three leptons without any same-flavour opposite-sign lepton pairs are used to search for WWW→ℓνℓνℓν, while events with three leptons and at least one same-flavour opposite-sign lepton pair and one or more reconstructed jets are used to search for WWZ→ℓνqqℓℓ. Finally, events with four leptons are analysed to search for WWZ→ℓνℓνℓℓ and WZZ→qqℓℓℓℓ. Evidence for the joint production of three massive vector bosons is observed with a significance of 4.1 standard deviations, where the expectation is 3.1 standard deviations. © 2019 The Author(s)

AB - A search for the production of three massive vector bosons in proton–proton collisions is performed using data at s=13 TeV recorded with the ATLAS detector at the Large Hadron Collider in the years 2015–2017, corresponding to an integrated luminosity of 79.8 fb−1. Events with two same-sign leptons ℓ (electrons or muons) and at least two reconstructed jets are selected to search for WWW→ℓνℓνqq. Events with three leptons without any same-flavour opposite-sign lepton pairs are used to search for WWW→ℓνℓνℓν, while events with three leptons and at least one same-flavour opposite-sign lepton pair and one or more reconstructed jets are used to search for WWZ→ℓνqqℓℓ. Finally, events with four leptons are analysed to search for WWZ→ℓνℓνℓℓ and WZZ→qqℓℓℓℓ. Evidence for the joint production of three massive vector bosons is observed with a significance of 4.1 standard deviations, where the expectation is 3.1 standard deviations. © 2019 The Author(s)

U2 - 10.1016/j.physletb.2019.134913

DO - 10.1016/j.physletb.2019.134913

M3 - Article

SN - 0370-2693

VL - 798

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

M1 - 134913

ER -

Evidence for the production of three massive vector bosons with the ATLAS detector

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