Search for low-mass resonances decaying into two jets and produced in association with a photon using pp collisions at √s = 13 TeV with the ATLAS detector

Philip James Clark; Sinead Farrington; Michele Faucci Giannelli; Yanyan Gao; Ahmed Hasib; Christos Leonidopoulos; Victoria Jane Martin; Liza Mijovic; Benjamin Wynne; Atlas Collaboration

doi:10.1016/j.physletb.2019.03.067

Search for low-mass resonances decaying into two jets and produced in association with a photon using pp collisions at √s = 13 TeV with the ATLAS detector

Philip James Clark, Sinead Farrington, Michele Faucci Giannelli, Yanyan Gao, Ahmed Hasib, Christos Leonidopoulos, Victoria Jane Martin, Liza Mijovic, Benjamin Wynne, Atlas Collaboration

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

A search is performed for localised excesses in dijet mass distributions of low-dijet-mass events produced in association with a high transverse energy photon. The search uses up to 79.8 fb$^{-1}$ of LHC proton-proton collisions collected by the ATLAS experiment at a centre-of-mass energy of 13 TeV during 2015-2017. Two variants are presented: one which makes no jet flavour requirements and one which requires both jets to be tagged as $b$-jets. The observed mass distributions are consistent with multi-jet processes in the Standard Model. The data are used to set upper limits on the production cross-section for a benchmark $Z^\prime$ model and, separately, on generic Gaussian-shape contributions to the mass distributions, extending the current ATLAS constraints on dijet resonances to the mass range between 225 and 1100 GeV.

Original language	English
Pages (from-to)	56-75
Journal	Physics Letters B
Volume	B795
Early online date	30 May 2019
DOIs	https://doi.org/10.1016/j.physletb.2019.03.067
Publication status	Published - 10 Aug 2019

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Clark, P. J., Farrington, S., Faucci Giannelli, M., Gao, Y., Hasib, A., Leonidopoulos, C., Martin, V. J., Mijovic, L., Wynne, B., & Collaboration, A. (2019). Search for low-mass resonances decaying into two jets and produced in association with a photon using pp collisions at √s = 13 TeV with the ATLAS detector. Physics Letters B, B795, 56-75. https://doi.org/10.1016/j.physletb.2019.03.067

@article{c4133298d8bc4aaca9699e19bc371cc0,

title = "Search for low-mass resonances decaying into two jets and produced in association with a photon using pp collisions at √s = 13 TeV with the ATLAS detector",

abstract = "A search is performed for localised excesses in dijet mass distributions of low-dijet-mass events produced in association with a high transverse energy photon. The search uses up to 79.8 fb$^{-1}$ of LHC proton-proton collisions collected by the ATLAS experiment at a centre-of-mass energy of 13 TeV during 2015-2017. Two variants are presented: one which makes no jet flavour requirements and one which requires both jets to be tagged as $b$-jets. The observed mass distributions are consistent with multi-jet processes in the Standard Model. The data are used to set upper limits on the production cross-section for a benchmark $Z^\prime$ model and, separately, on generic Gaussian-shape contributions to the mass distributions, extending the current ATLAS constraints on dijet resonances to the mass range between 225 and 1100 GeV.",

author = "Clark, {Philip James} and Sinead Farrington and {Faucci Giannelli}, Michele and Yanyan Gao and Ahmed Hasib and Christos Leonidopoulos and Martin, {Victoria Jane} and Liza Mijovic and Benjamin Wynne and Atlas Collaboration",

year = "2019",

month = aug,

day = "10",

doi = "10.1016/j.physletb.2019.03.067",

language = "English",

volume = "B795",

pages = "56--75",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier",

}

Clark, PJ , Farrington, S, Faucci Giannelli, M, Gao, Y, Hasib, A, Leonidopoulos, C , Martin, VJ , Mijovic, L , Wynne, B & Collaboration, A 2019, 'Search for low-mass resonances decaying into two jets and produced in association with a photon using pp collisions at √s = 13 TeV with the ATLAS detector', Physics Letters B, vol. B795, pp. 56-75. https://doi.org/10.1016/j.physletb.2019.03.067

TY - JOUR

T1 - Search for low-mass resonances decaying into two jets and produced in association with a photon using pp collisions at √s = 13 TeV with the ATLAS detector

AU - Clark, Philip James

AU - Farrington, Sinead

AU - Faucci Giannelli, Michele

AU - Gao, Yanyan

AU - Hasib, Ahmed

AU - Leonidopoulos, Christos

AU - Martin, Victoria Jane

AU - Mijovic, Liza

AU - Wynne, Benjamin

AU - Collaboration, Atlas

PY - 2019/8/10

Y1 - 2019/8/10

N2 - A search is performed for localised excesses in dijet mass distributions of low-dijet-mass events produced in association with a high transverse energy photon. The search uses up to 79.8 fb$^{-1}$ of LHC proton-proton collisions collected by the ATLAS experiment at a centre-of-mass energy of 13 TeV during 2015-2017. Two variants are presented: one which makes no jet flavour requirements and one which requires both jets to be tagged as $b$-jets. The observed mass distributions are consistent with multi-jet processes in the Standard Model. The data are used to set upper limits on the production cross-section for a benchmark $Z^\prime$ model and, separately, on generic Gaussian-shape contributions to the mass distributions, extending the current ATLAS constraints on dijet resonances to the mass range between 225 and 1100 GeV.

AB - A search is performed for localised excesses in dijet mass distributions of low-dijet-mass events produced in association with a high transverse energy photon. The search uses up to 79.8 fb$^{-1}$ of LHC proton-proton collisions collected by the ATLAS experiment at a centre-of-mass energy of 13 TeV during 2015-2017. Two variants are presented: one which makes no jet flavour requirements and one which requires both jets to be tagged as $b$-jets. The observed mass distributions are consistent with multi-jet processes in the Standard Model. The data are used to set upper limits on the production cross-section for a benchmark $Z^\prime$ model and, separately, on generic Gaussian-shape contributions to the mass distributions, extending the current ATLAS constraints on dijet resonances to the mass range between 225 and 1100 GeV.

U2 - 10.1016/j.physletb.2019.03.067

DO - 10.1016/j.physletb.2019.03.067

M3 - Article

SN - 0370-2693

VL - B795

SP - 56

EP - 75

JO - Physics Letters B

JF - Physics Letters B

ER -

Search for low-mass resonances decaying into two jets and produced in association with a photon using pp collisions at √s = 13 TeV with the ATLAS detector

Abstract

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