Measurement of the production cross section of three isolated photons in pp collisions at s=8 TeV using the ATLAS detector

M Aaboud; G Aad; B. Abbott; O Abdinov; B Abeloos; S. H. Abidi; Torsten Åkesson; Simona Bocchetta; Eric Corrigan; Caterina Doglioni; Eva Brottmann Hansen; Vincent Hedberg; Göran Jarlskog; Charles Kalderon; Edgar Kellermann; Balazs Konya; Else Lytken; Katja Mankinen; Ulf Mjörnmark; Ruth Pöttgen; Trine Poulsen; Oxana Smirnova; Oleksandr Viazlo; ATLAS Collaboration

doi:10.1016/j.physletb.2018.03.057

Measurement of the production cross section of three isolated photons in pp collisions at s=8 TeV using the ATLAS detector

M Aaboud, G Aad, B. Abbott, O Abdinov, B Abeloos, S. H. Abidi, Torsten Åkesson, Simona Bocchetta, Eric Corrigan, Caterina Doglioni, Eva Brottmann Hansen, Vincent Hedberg, Göran Jarlskog, Charles Kalderon, Edgar Kellermann, Balazs Konya, Else Lytken, Katja Mankinen, Ulf Mjörnmark, Ruth PöttgenTrine Poulsen, Oxana Smirnova, Oleksandr Viazlo, ATLAS Collaboration

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Abstract

A measurement of the production of three isolated photons in proton–proton collisions at a centre-of-mass energy s=8 TeV is reported. The results are based on an integrated luminosity of 20.2 fb−1 collected with the ATLAS detector at the LHC. The differential cross sections are measured as functions of the transverse energy of each photon, the difference in azimuthal angle and in pseudorapidity between pairs of photons, the invariant mass of pairs of photons, and the invariant mass of the triphoton system. A measurement of the inclusive fiducial cross section is also reported. Next-to-leading-order perturbative QCD predictions are compared to the cross-section measurements. The predictions underestimate the measurement of the inclusive fiducial cross section and the differential measurements at low photon transverse energies and invariant masses. They provide adequate descriptions of the measurements at high values of the photon transverse energies, invariant mass of pairs of photons, and invariant mass of the triphoton system. © 2018 The Author

Original language	English
Pages (from-to)	55-76
Number of pages	22
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	781
DOIs	https://doi.org/10.1016/j.physletb.2018.03.057
Publication status	Published - 2018 Jun 10

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Export Date: 17 April 2018

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Subatomic Physics

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Aaboud, M., Aad, G., Abbott, B., Abdinov, O., Abeloos, B., Abidi, S. H., Åkesson, T., Bocchetta, S., Corrigan, E., Doglioni, C., Brottmann Hansen, E., Hedberg, V., Jarlskog, G., Kalderon, C., Kellermann, E., Konya, B., Lytken, E., Mankinen, K., Mjörnmark, U., ... ATLAS Collaboration (2018). Measurement of the production cross section of three isolated photons in pp collisions at s=8 TeV using the ATLAS detector. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 781, 55-76. https://doi.org/10.1016/j.physletb.2018.03.057

@article{2e370c3deac44186afaddc99b49aa44f,

title = "Measurement of the production cross section of three isolated photons in pp collisions at s=8 TeV using the ATLAS detector",

abstract = "A measurement of the production of three isolated photons in proton–proton collisions at a centre-of-mass energy s=8 TeV is reported. The results are based on an integrated luminosity of 20.2 fb−1 collected with the ATLAS detector at the LHC. The differential cross sections are measured as functions of the transverse energy of each photon, the difference in azimuthal angle and in pseudorapidity between pairs of photons, the invariant mass of pairs of photons, and the invariant mass of the triphoton system. A measurement of the inclusive fiducial cross section is also reported. Next-to-leading-order perturbative QCD predictions are compared to the cross-section measurements. The predictions underestimate the measurement of the inclusive fiducial cross section and the differential measurements at low photon transverse energies and invariant masses. They provide adequate descriptions of the measurements at high values of the photon transverse energies, invariant mass of pairs of photons, and invariant mass of the triphoton system. {\textcopyright} 2018 The Author",

author = "M Aaboud and G Aad and B. Abbott and O Abdinov and B Abeloos and Abidi, {S. H.} and Torsten {\AA}kesson and Simona Bocchetta and Eric Corrigan and Caterina Doglioni 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 Ulf Mj{\"o}rnmark and Ruth P{\"o}ttgen and Trine Poulsen and Oxana Smirnova and Oleksandr Viazlo and {ATLAS Collaboration}",

note = "Export Date: 17 April 2018",

year = "2018",

month = jun,

day = "10",

doi = "10.1016/j.physletb.2018.03.057",

language = "English",

volume = "781",

pages = "55--76",

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

issn = "0370-2693",

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Aaboud, M, Aad, G, Abbott, B, Abdinov, O, Abeloos, B, Abidi, SH, Åkesson, T, Bocchetta, S, Corrigan, E, Doglioni, C, Brottmann Hansen, E, Hedberg, V , Jarlskog, G, Kalderon, C, Kellermann, E, Konya, B , Lytken, E, Mankinen, K, Mjörnmark, U, Pöttgen, R, Poulsen, T, Smirnova, O, Viazlo, O & ATLAS Collaboration 2018, 'Measurement of the production cross section of three isolated photons in pp collisions at s=8 TeV using the ATLAS detector', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 781, pp. 55-76. https://doi.org/10.1016/j.physletb.2018.03.057

TY - JOUR

T1 - Measurement of the production cross section of three isolated photons in pp collisions at s=8 TeV using the ATLAS detector

AU - Aaboud, M

AU - Aad, G

AU - Abbott, B.

AU - Abdinov, O

AU - Abeloos, B

AU - Abidi, S. H.

AU - Åkesson, Torsten

AU - Bocchetta, Simona

AU - Corrigan, Eric

AU - Doglioni, Caterina

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 - Mjörnmark, Ulf

AU - Pöttgen, Ruth

AU - Poulsen, Trine

AU - Smirnova, Oxana

AU - Viazlo, Oleksandr

AU - ATLAS Collaboration

N1 - Export Date: 17 April 2018

PY - 2018/6/10

Y1 - 2018/6/10

N2 - A measurement of the production of three isolated photons in proton–proton collisions at a centre-of-mass energy s=8 TeV is reported. The results are based on an integrated luminosity of 20.2 fb−1 collected with the ATLAS detector at the LHC. The differential cross sections are measured as functions of the transverse energy of each photon, the difference in azimuthal angle and in pseudorapidity between pairs of photons, the invariant mass of pairs of photons, and the invariant mass of the triphoton system. A measurement of the inclusive fiducial cross section is also reported. Next-to-leading-order perturbative QCD predictions are compared to the cross-section measurements. The predictions underestimate the measurement of the inclusive fiducial cross section and the differential measurements at low photon transverse energies and invariant masses. They provide adequate descriptions of the measurements at high values of the photon transverse energies, invariant mass of pairs of photons, and invariant mass of the triphoton system. © 2018 The Author

AB - A measurement of the production of three isolated photons in proton–proton collisions at a centre-of-mass energy s=8 TeV is reported. The results are based on an integrated luminosity of 20.2 fb−1 collected with the ATLAS detector at the LHC. The differential cross sections are measured as functions of the transverse energy of each photon, the difference in azimuthal angle and in pseudorapidity between pairs of photons, the invariant mass of pairs of photons, and the invariant mass of the triphoton system. A measurement of the inclusive fiducial cross section is also reported. Next-to-leading-order perturbative QCD predictions are compared to the cross-section measurements. The predictions underestimate the measurement of the inclusive fiducial cross section and the differential measurements at low photon transverse energies and invariant masses. They provide adequate descriptions of the measurements at high values of the photon transverse energies, invariant mass of pairs of photons, and invariant mass of the triphoton system. © 2018 The Author

U2 - 10.1016/j.physletb.2018.03.057

DO - 10.1016/j.physletb.2018.03.057

M3 - Article

SN - 0370-2693

VL - 781

SP - 55

EP - 76

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

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

ER -

Measurement of the production cross section of three isolated photons in pp collisions at s=8 TeV using the ATLAS detector

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