Search for Heavy Resonances Decaying into a Photon and a Hadronically Decaying Higgs Boson in pp Collisions at s =13 TeV with the ATLAS Detector

ATLAS Collaboration; G Aad; Torsten Åkesson; Simona Bocchetta; Eric Edward Corrigan; Caterina Doglioni; Jannik Geisen; Kristian Gregersen; Eva Brottmann Hansen; Vincent Hedberg; Göran Jarlskog; Edgar Kellermann; Balazs Konya; Else Lytken; Katja Mankinen; Caterina Marcon; Ulf Mjörnmark; Geoffrey André Adrien Mullier; Ruth Pöttgen; Trine Poulsen; Eleni Skorda; Oxana Smirnova; L Zwalinski

doi:10.1103/PhysRevLett.125.251802

Search for Heavy Resonances Decaying into a Photon and a Hadronically Decaying Higgs Boson in pp Collisions at s =13 TeV with the ATLAS Detector

ATLAS Collaboration, G Aad, Torsten Åkesson, Simona Bocchetta, Eric Edward Corrigan, Caterina Doglioni, Jannik Geisen, Kristian Gregersen, Eva Brottmann Hansen, Vincent Hedberg, Göran Jarlskog, Edgar Kellermann, Balazs Konya, Else Lytken, Katja Mankinen, Caterina Marcon, Ulf Mjörnmark, Geoffrey André Adrien Mullier, Ruth Pöttgen, Trine PoulsenEleni Skorda, Oxana Smirnova, L Zwalinski

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

Abstract

This Letter presents a search for the production of new heavy resonances decaying into a Higgs boson and a photon using proton-proton collision data at s=13 TeV collected by the ATLAS detector at the LHC. The data correspond to an integrated luminosity of 139 fb-1. The analysis is performed by reconstructing hadronically decaying Higgs boson (H→bb¯) candidates as single large-radius jets. A novel algorithm using information about the jet constituents in the center-of-mass frame of the jet is implemented to identify the two b quarks in the single jet. No significant excess of events is observed above the expected background. Upper limits are set on the production cross-section times branching fraction for narrow spin-1 resonances decaying into a Higgs boson and a photon in the resonance mass range from 0.7 to 4 TeV, cross-section times branching fractions are excluded between 11.6 fb and 0.11 fb at a 95% confidence level. © 2020 CERN.

Original language	English
Article number	251802
Journal	Physical Review Letters
Volume	125
Issue number	25
DOIs	https://doi.org/10.1103/PhysRevLett.125.251802
Publication status	Published - 2020

Subject classification (UKÄ)

Subatomic Physics

Free keywords

Decay (organic)
Photons
Resonance
ATLAS detectors
Branching fractions
Center of mass
Confidence levels
Integrated luminosity
Novel algorithm
Production cross section
Proton proton collisions
Bosons

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10.1103/PhysRevLett.125.251802Licence: CC BY

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ATLAS Collaboration, Aad, G., Åkesson, T., Bocchetta, S., Corrigan, E. E., Doglioni, C., Geisen, J., Gregersen, K., Brottmann Hansen, E., Hedberg, V., Jarlskog, G., Kellermann, E., Konya, B., Lytken, E., Mankinen, K., Marcon, C., Mjörnmark, U., Mullier, G. A. A., Pöttgen, R., ... Zwalinski, L. (2020). Search for Heavy Resonances Decaying into a Photon and a Hadronically Decaying Higgs Boson in pp Collisions at s =13 TeV with the ATLAS Detector. Physical Review Letters, 125(25), Article 251802. https://doi.org/10.1103/PhysRevLett.125.251802

@article{889144ac939c486b878ccbc4942f0b63,

title = "Search for Heavy Resonances Decaying into a Photon and a Hadronically Decaying Higgs Boson in pp Collisions at s =13 TeV with the ATLAS Detector",

abstract = "This Letter presents a search for the production of new heavy resonances decaying into a Higgs boson and a photon using proton-proton collision data at s=13 TeV collected by the ATLAS detector at the LHC. The data correspond to an integrated luminosity of 139 fb-1. The analysis is performed by reconstructing hadronically decaying Higgs boson (H→bb¯) candidates as single large-radius jets. A novel algorithm using information about the jet constituents in the center-of-mass frame of the jet is implemented to identify the two b quarks in the single jet. No significant excess of events is observed above the expected background. Upper limits are set on the production cross-section times branching fraction for narrow spin-1 resonances decaying into a Higgs boson and a photon in the resonance mass range from 0.7 to 4 TeV, cross-section times branching fractions are excluded between 11.6 fb and 0.11 fb at a 95% confidence level. {\textcopyright} 2020 CERN.",

keywords = "Decay (organic), Photons, Resonance, ATLAS detectors, Branching fractions, Center of mass, Confidence levels, Integrated luminosity, Novel algorithm, Production cross section, Proton proton collisions, Bosons",

author = "{ATLAS Collaboration} and G Aad and Torsten {\AA}kesson and Simona Bocchetta and Corrigan, {Eric Edward} and Caterina Doglioni and Jannik Geisen and Kristian Gregersen and {Brottmann Hansen}, Eva and Vincent Hedberg and G{\"o}ran Jarlskog and Edgar Kellermann and Balazs Konya and Else Lytken and Katja Mankinen and Caterina Marcon and Ulf Mj{\"o}rnmark and Mullier, {Geoffrey Andr{\'e} Adrien} and Ruth P{\"o}ttgen and Trine Poulsen and Eleni Skorda and Oxana Smirnova and L Zwalinski",

year = "2020",

doi = "10.1103/PhysRevLett.125.251802",

language = "English",

volume = "125",

journal = "Physical Review Letters",

issn = "1079-7114",

publisher = "American Physical Society",

number = "25",

}

ATLAS Collaboration, Aad, G, Åkesson, T, Bocchetta, S, Corrigan, EE, Doglioni, C, Geisen, J, Gregersen, K, Brottmann Hansen, E, Hedberg, V , Jarlskog, G, Kellermann, E, Konya, B , Lytken, E, Mankinen, K, Marcon, C, Mjörnmark, U, Mullier, GAA, Pöttgen, R, Poulsen, T, Skorda, E, Smirnova, O & Zwalinski, L 2020, 'Search for Heavy Resonances Decaying into a Photon and a Hadronically Decaying Higgs Boson in pp Collisions at s =13 TeV with the ATLAS Detector', Physical Review Letters, vol. 125, no. 25, 251802. https://doi.org/10.1103/PhysRevLett.125.251802

TY - JOUR

T1 - Search for Heavy Resonances Decaying into a Photon and a Hadronically Decaying Higgs Boson in pp Collisions at s =13 TeV with the ATLAS Detector

AU - ATLAS Collaboration

AU - Aad, G

AU - Åkesson, Torsten

AU - Bocchetta, Simona

AU - Corrigan, Eric Edward

AU - Doglioni, Caterina

AU - Geisen, Jannik

AU - Gregersen, Kristian

AU - Brottmann Hansen, Eva

AU - Hedberg, Vincent

AU - Jarlskog, Göran

AU - Kellermann, Edgar

AU - Konya, Balazs

AU - Lytken, Else

AU - Mankinen, Katja

AU - Marcon, Caterina

AU - Mjörnmark, Ulf

AU - Mullier, Geoffrey André Adrien

AU - Pöttgen, Ruth

AU - Poulsen, Trine

AU - Skorda, Eleni

AU - Smirnova, Oxana

AU - Zwalinski, L

PY - 2020

Y1 - 2020

N2 - This Letter presents a search for the production of new heavy resonances decaying into a Higgs boson and a photon using proton-proton collision data at s=13 TeV collected by the ATLAS detector at the LHC. The data correspond to an integrated luminosity of 139 fb-1. The analysis is performed by reconstructing hadronically decaying Higgs boson (H→bb¯) candidates as single large-radius jets. A novel algorithm using information about the jet constituents in the center-of-mass frame of the jet is implemented to identify the two b quarks in the single jet. No significant excess of events is observed above the expected background. Upper limits are set on the production cross-section times branching fraction for narrow spin-1 resonances decaying into a Higgs boson and a photon in the resonance mass range from 0.7 to 4 TeV, cross-section times branching fractions are excluded between 11.6 fb and 0.11 fb at a 95% confidence level. © 2020 CERN.

AB - This Letter presents a search for the production of new heavy resonances decaying into a Higgs boson and a photon using proton-proton collision data at s=13 TeV collected by the ATLAS detector at the LHC. The data correspond to an integrated luminosity of 139 fb-1. The analysis is performed by reconstructing hadronically decaying Higgs boson (H→bb¯) candidates as single large-radius jets. A novel algorithm using information about the jet constituents in the center-of-mass frame of the jet is implemented to identify the two b quarks in the single jet. No significant excess of events is observed above the expected background. Upper limits are set on the production cross-section times branching fraction for narrow spin-1 resonances decaying into a Higgs boson and a photon in the resonance mass range from 0.7 to 4 TeV, cross-section times branching fractions are excluded between 11.6 fb and 0.11 fb at a 95% confidence level. © 2020 CERN.

KW - Decay (organic)

KW - Photons

KW - Resonance

KW - ATLAS detectors

KW - Branching fractions

KW - Center of mass

KW - Confidence levels

KW - Integrated luminosity

KW - Novel algorithm

KW - Production cross section

KW - Proton proton collisions

KW - Bosons

U2 - 10.1103/PhysRevLett.125.251802

DO - 10.1103/PhysRevLett.125.251802

M3 - Article

C2 - 33416363

SN - 1079-7114

VL - 125

JO - Physical Review Letters

JF - Physical Review Letters

IS - 25

M1 - 251802

ER -

Search for Heavy Resonances Decaying into a Photon and a Hadronically Decaying Higgs Boson in pp Collisions at s =13 TeV with the ATLAS Detector

Abstract

Subject classification (UKÄ)

Free keywords

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