Search for Higgs boson decays into pairs of light (pseudo)scalar particles in the γγjj ﬁnal state in pp collisions at √s=13 TeV with the ATLAS detector

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https://doi.org/10.1016/j.physletb.2018.06.011
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Search for Higgs boson decays into pairs of light (pseudo)scalar particles in the γγjj ﬁnal state in pp collisions at √s=13 TeV with the ATLAS detector. / The ATLAS collaboration.
In: Physics Letters B, Vol. 782, 10.07.2018, p. 750-767.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Bibtex

@article{8eaeff0b5f594fcead56ed477059be1f,

title = "Search for Higgs boson decays into pairs of light (pseudo)scalar particles in the γγjj ﬁnal state in pp collisions at √s=13 TeV with the ATLAS detector",

abstract = "This Letter presents a search for exotic decays of the Higgs boson to a pair of new (pseudo)scalar particles, H → aa, where the a particle has a mass in the range 20–60 GeV, and where one of the abosons decays into a pair of photons and the other to a pair of gluons. The search is performed in event samples enhanced in vector-boson fusion Higgs boson production by requiring two jets with large invariant mass in addition to the Higgs boson candidate decay products. The analysis is based on the full dataset of pp collisions at √s=13 TeV recorded in 2015 and 2016 with the ATLAS detector at the CERN Large Hadron Collider, corresponding to an integrated luminosity of 36.7 fb−1. The data are in agreement with the Standard Model predictions and an upper limit at the 95% conﬁdence level is placed on the production cross section times the branching ratio for the decay H → aa → γγgg. This limit ranges from 3.1 pb to 9.0 pb depending on the mass of the a boson.",

author = "Barton, {Adam Edward} and Michael Beattie and Bertram, {Iain Alexander} and Guennadi Borissov and Bouhova-Thacker, {Evelina Vassileva} and Harald Fox and Henderson, {Robert Charles William} and Jones, {Roger William Lewis} and Vakhtang Kartvelishvili and Long, {Robin Eamonn} and Love, {Peter Allan} and Muenstermann, {Daniel Matthias Alfred} and Parker, {Adam Jackson} and Malcolm Skinner and Maria Smizanska and Walder, {James William} and Wharton, {Andrew Mark} and Ben Whitmore and {The ATLAS collaboration}",

year = "2018",

month = jul,

day = "10",

doi = "10.1016/j.physletb.2018.06.011",

language = "English",

volume = "782",

pages = "750--767",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "ELSEVIER SCIENCE BV",

}

RIS

TY - JOUR

T1 - Search for Higgs boson decays into pairs of light (pseudo)scalar particles in the γγjj ﬁnal state in pp collisions at √s=13 TeV with the ATLAS detector

AU - Barton, Adam Edward

AU - Beattie, Michael

AU - Bertram, Iain Alexander

AU - Borissov, Guennadi

AU - Bouhova-Thacker, Evelina Vassileva

AU - Fox, Harald

AU - Henderson, Robert Charles William

AU - Jones, Roger William Lewis

AU - Kartvelishvili, Vakhtang

AU - Long, Robin Eamonn

AU - Love, Peter Allan

AU - Muenstermann, Daniel Matthias Alfred

AU - Parker, Adam Jackson

AU - Skinner, Malcolm

AU - Smizanska, Maria

AU - Walder, James William

AU - Wharton, Andrew Mark

AU - Whitmore, Ben

AU - The ATLAS collaboration

PY - 2018/7/10

Y1 - 2018/7/10

N2 - This Letter presents a search for exotic decays of the Higgs boson to a pair of new (pseudo)scalar particles, H → aa, where the a particle has a mass in the range 20–60 GeV, and where one of the abosons decays into a pair of photons and the other to a pair of gluons. The search is performed in event samples enhanced in vector-boson fusion Higgs boson production by requiring two jets with large invariant mass in addition to the Higgs boson candidate decay products. The analysis is based on the full dataset of pp collisions at √s=13 TeV recorded in 2015 and 2016 with the ATLAS detector at the CERN Large Hadron Collider, corresponding to an integrated luminosity of 36.7 fb−1. The data are in agreement with the Standard Model predictions and an upper limit at the 95% conﬁdence level is placed on the production cross section times the branching ratio for the decay H → aa → γγgg. This limit ranges from 3.1 pb to 9.0 pb depending on the mass of the a boson.

AB - This Letter presents a search for exotic decays of the Higgs boson to a pair of new (pseudo)scalar particles, H → aa, where the a particle has a mass in the range 20–60 GeV, and where one of the abosons decays into a pair of photons and the other to a pair of gluons. The search is performed in event samples enhanced in vector-boson fusion Higgs boson production by requiring two jets with large invariant mass in addition to the Higgs boson candidate decay products. The analysis is based on the full dataset of pp collisions at √s=13 TeV recorded in 2015 and 2016 with the ATLAS detector at the CERN Large Hadron Collider, corresponding to an integrated luminosity of 36.7 fb−1. The data are in agreement with the Standard Model predictions and an upper limit at the 95% conﬁdence level is placed on the production cross section times the branching ratio for the decay H → aa → γγgg. This limit ranges from 3.1 pb to 9.0 pb depending on the mass of the a boson.

U2 - 10.1016/j.physletb.2018.06.011

DO - 10.1016/j.physletb.2018.06.011

M3 - Journal article

VL - 782

SP - 750

EP - 767

JO - Physics Letters B

JF - Physics Letters B

SN - 0370-2693

ER -

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