Search for new phenomena with photon+jet events in proton-proton collisions at √s = 13 TeV with the ATLAS detector

G Aad; B. Abbott; J Abdallah; O Abdinov; B Abeloos; R Aben; 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:10.1007/JHEP03(2016)041

Search for new phenomena with photon+jet events in proton-proton collisions at √s = 13 TeV with the ATLAS detector

G Aad, B. Abbott, J Abdallah, O Abdinov, B Abeloos, R Aben, 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

Abstract: A search is performed for the production of high-mass resonances decaying into a photon and a jet in 3.2 fb−1of proton-proton collisions at a centre-of-mass energy of (Formula presented.) TeV collected by the ATLAS detector at the Large Hadron Collider. Selected events have an isolated photon and a jet, each with transverse momentum above 150 GeV. No significant deviation of the γ+jet invariant mass distribution from the background-only hypothesis is found. Limits are set at 95% confidence level on the cross sections of generic Gaussian-shaped signals and of a few benchmark phenomena beyond the Standard Model: excited quarks with vector-like couplings to the Standard Model particles, and non-thermal quantum black holes in two models of extra spatial dimensions. The minimum excluded visible cross sections for Gaussian-shaped resonances with width-to-mass ratios of 2% decrease from about 6 fb for a mass of 1.5 TeV to about 0.8 fb for a mass of 5 TeV. The minimum excluded visible cross sections for Gaussian-shaped resonances with width-to-mass ratios of 15% decrease from about 50 fb for a mass of 1.5 TeV to about 1.0 fb for a mass of 5 TeV. Excited quarks are excluded below masses of 4.4 TeV, and non-thermal quantum black holes are excluded below masses of 3.8 (6.2) TeV for Randall-Sundrum (Arkani-Hamed-Dimopoulous-Dvali) models with one (six) extra dimensions.[Figure not available: see fulltext.] © 2016, The Author(s).

Original language	English
Journal	Journal of High Energy Physics
Volume	2016
Issue number	3
DOIs	https://doi.org/10.1007/JHEP03(2016)041
Publication status	Published - 2016

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Cited By :10

Export Date: 23 May 2018

Subject classification (UKÄ)

Subatomic Physics

Free keywords

Hadron-Hadron scattering

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10.1007/JHEP03(2016)041Licence: CC BY

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Aad, G., Abbott, B., Abdallah, J., Abdinov, O., Abeloos, B., Aben, R., Åkesson, T., Bocchetta, S., Bryngemark, L., Doglioni, C., Floderus, A., Hawkins, A., Hedberg, V., Ivarsson, J., Jarlskog, G., Lytken, E., Mjörnmark, U., Smirnova, O., Viazlo, O., & ATLAS Collaboration (2016). Search for new phenomena with photon+jet events in proton-proton collisions at √s = 13 TeV with the ATLAS detector. Journal of High Energy Physics, 2016(3). https://doi.org/10.1007/JHEP03(2016)041

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title = "Search for new phenomena with photon+jet events in proton-proton collisions at √s = 13 TeV with the ATLAS detector",

abstract = "Abstract: A search is performed for the production of high-mass resonances decaying into a photon and a jet in 3.2 fb−1of proton-proton collisions at a centre-of-mass energy of (Formula presented.) TeV collected by the ATLAS detector at the Large Hadron Collider. Selected events have an isolated photon and a jet, each with transverse momentum above 150 GeV. No significant deviation of the γ+jet invariant mass distribution from the background-only hypothesis is found. Limits are set at 95% confidence level on the cross sections of generic Gaussian-shaped signals and of a few benchmark phenomena beyond the Standard Model: excited quarks with vector-like couplings to the Standard Model particles, and non-thermal quantum black holes in two models of extra spatial dimensions. The minimum excluded visible cross sections for Gaussian-shaped resonances with width-to-mass ratios of 2% decrease from about 6 fb for a mass of 1.5 TeV to about 0.8 fb for a mass of 5 TeV. The minimum excluded visible cross sections for Gaussian-shaped resonances with width-to-mass ratios of 15% decrease from about 50 fb for a mass of 1.5 TeV to about 1.0 fb for a mass of 5 TeV. Excited quarks are excluded below masses of 4.4 TeV, and non-thermal quantum black holes are excluded below masses of 3.8 (6.2) TeV for Randall-Sundrum (Arkani-Hamed-Dimopoulous-Dvali) models with one (six) extra dimensions.[Figure not available: see fulltext.] {\textcopyright} 2016, The Author(s).",

keywords = "Hadron-Hadron scattering",

author = "G Aad and B. Abbott and J Abdallah and O Abdinov and B Abeloos and R Aben 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 :10 Export Date: 23 May 2018",

year = "2016",

doi = "10.1007/JHEP03(2016)041",

language = "English",

volume = "2016",

journal = "Journal of High Energy Physics",

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Aad, G, Abbott, B, Abdallah, J, Abdinov, O, Abeloos, B, Aben, R, Åkesson, T, Bocchetta, S, Bryngemark, L , Doglioni, C, Floderus, A, Hawkins, A, Hedberg, V, Ivarsson, J, Jarlskog, G , Lytken, E, Mjörnmark, U, Smirnova, O, Viazlo, O & ATLAS Collaboration 2016, 'Search for new phenomena with photon+jet events in proton-proton collisions at √s = 13 TeV with the ATLAS detector', Journal of High Energy Physics, vol. 2016, no. 3. https://doi.org/10.1007/JHEP03(2016)041

TY - JOUR

T1 - Search for new phenomena with photon+jet events in proton-proton collisions at √s = 13 TeV with the ATLAS detector

AU - Aad, G

AU - Abbott, B.

AU - Abdallah, J

AU - Abdinov, O

AU - Abeloos, B

AU - Aben, R

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 :10 Export Date: 23 May 2018

PY - 2016

Y1 - 2016

N2 - Abstract: A search is performed for the production of high-mass resonances decaying into a photon and a jet in 3.2 fb−1of proton-proton collisions at a centre-of-mass energy of (Formula presented.) TeV collected by the ATLAS detector at the Large Hadron Collider. Selected events have an isolated photon and a jet, each with transverse momentum above 150 GeV. No significant deviation of the γ+jet invariant mass distribution from the background-only hypothesis is found. Limits are set at 95% confidence level on the cross sections of generic Gaussian-shaped signals and of a few benchmark phenomena beyond the Standard Model: excited quarks with vector-like couplings to the Standard Model particles, and non-thermal quantum black holes in two models of extra spatial dimensions. The minimum excluded visible cross sections for Gaussian-shaped resonances with width-to-mass ratios of 2% decrease from about 6 fb for a mass of 1.5 TeV to about 0.8 fb for a mass of 5 TeV. The minimum excluded visible cross sections for Gaussian-shaped resonances with width-to-mass ratios of 15% decrease from about 50 fb for a mass of 1.5 TeV to about 1.0 fb for a mass of 5 TeV. Excited quarks are excluded below masses of 4.4 TeV, and non-thermal quantum black holes are excluded below masses of 3.8 (6.2) TeV for Randall-Sundrum (Arkani-Hamed-Dimopoulous-Dvali) models with one (six) extra dimensions.[Figure not available: see fulltext.] © 2016, The Author(s).

AB - Abstract: A search is performed for the production of high-mass resonances decaying into a photon and a jet in 3.2 fb−1of proton-proton collisions at a centre-of-mass energy of (Formula presented.) TeV collected by the ATLAS detector at the Large Hadron Collider. Selected events have an isolated photon and a jet, each with transverse momentum above 150 GeV. No significant deviation of the γ+jet invariant mass distribution from the background-only hypothesis is found. Limits are set at 95% confidence level on the cross sections of generic Gaussian-shaped signals and of a few benchmark phenomena beyond the Standard Model: excited quarks with vector-like couplings to the Standard Model particles, and non-thermal quantum black holes in two models of extra spatial dimensions. The minimum excluded visible cross sections for Gaussian-shaped resonances with width-to-mass ratios of 2% decrease from about 6 fb for a mass of 1.5 TeV to about 0.8 fb for a mass of 5 TeV. The minimum excluded visible cross sections for Gaussian-shaped resonances with width-to-mass ratios of 15% decrease from about 50 fb for a mass of 1.5 TeV to about 1.0 fb for a mass of 5 TeV. Excited quarks are excluded below masses of 4.4 TeV, and non-thermal quantum black holes are excluded below masses of 3.8 (6.2) TeV for Randall-Sundrum (Arkani-Hamed-Dimopoulous-Dvali) models with one (six) extra dimensions.[Figure not available: see fulltext.] © 2016, The Author(s).

KW - Hadron-Hadron scattering

U2 - 10.1007/JHEP03(2016)041

DO - 10.1007/JHEP03(2016)041

M3 - Article

SN - 1029-8479

VL - 2016

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 3

ER -

Search for new phenomena with photon+jet events in proton-proton collisions at √s = 13 TeV with the ATLAS detector

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