Search for Higgs boson decays into a pair of light bosons in the bbμμ final state in pp collision at √s=13TeV with the ATLAS detector

M Aaboud; Torsten Åkesson; Simona Bocchetta; Eric Corrigan; Caterina Doglioni; Kristian Gregersen; 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; L Zwalinski; ATLAS Collaboration

doi:10.1016/j.physletb.2018.10.073

Search for Higgs boson decays into a pair of light bosons in the bbμμ final state in pp collision at √s=13TeV with the ATLAS detector

M Aaboud, Torsten Åkesson, Simona Bocchetta, Eric Corrigan, Caterina Doglioni, Kristian Gregersen, 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, L Zwalinski, ATLAS Collaboration

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

Abstract

A search for decays of the Higgs boson into a pair of new spin-zero particles, H→aa, where the a-bosons decay into a b-quark pair and a muon pair, is presented. The search uses 36.1 fb−1 of proton–proton collision data at s=13 TeV recorded by the ATLAS experiment at the LHC in 2015 and 2016. No significant deviation from the Standard Model prediction is observed. Upper limits at 95% confidence level are placed on the branching ratio (σH/σSM)×B(H→aa→bbμμ), ranging from 1.2×10−4 to 8.4×10−4 in the a-boson mass range of 20–60 GeV. Model-independent limits are set on the visible production cross-section times the branching ratio to the bbμμ final state for new physics, σvis(X)×B(X→bbμμ), ranging from 0.1 fb to 0.73 fb for mμμ between 18 and 62 GeV. © 2018 The Author

Original language	English
Pages (from-to)	1-21
Number of pages	21
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	790
DOIs	https://doi.org/10.1016/j.physletb.2018.10.073
Publication status	Published - 2019

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Export Date: 23 January 2019

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Subatomic Physics

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10.1016/j.physletb.2018.10.073

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Aaboud, M., Åkesson, T., Bocchetta, S., Corrigan, E., Doglioni, C., Gregersen, K., 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., Zwalinski, L., & ATLAS Collaboration (2019). Search for Higgs boson decays into a pair of light bosons in the bbμμ final state in pp collision at √s=13TeV with the ATLAS detector. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 790, 1-21. https://doi.org/10.1016/j.physletb.2018.10.073

@article{dd7d0a861d554ce1bb760680ac185fb9,

title = "Search for Higgs boson decays into a pair of light bosons in the bbμμ final state in pp collision at √s=13TeV with the ATLAS detector",

abstract = "A search for decays of the Higgs boson into a pair of new spin-zero particles, H→aa, where the a-bosons decay into a b-quark pair and a muon pair, is presented. The search uses 36.1 fb−1 of proton–proton collision data at s=13 TeV recorded by the ATLAS experiment at the LHC in 2015 and 2016. No significant deviation from the Standard Model prediction is observed. Upper limits at 95% confidence level are placed on the branching ratio (σH/σSM)×B(H→aa→bbμμ), ranging from 1.2×10−4 to 8.4×10−4 in the a-boson mass range of 20–60 GeV. Model-independent limits are set on the visible production cross-section times the branching ratio to the bbμμ final state for new physics, σvis(X)×B(X→bbμμ), ranging from 0.1 fb to 0.73 fb for mμμ between 18 and 62 GeV. {\textcopyright} 2018 The Author",

author = "M Aaboud and Torsten {\AA}kesson and Simona Bocchetta and Eric Corrigan and Caterina Doglioni and Kristian Gregersen 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 L Zwalinski and {ATLAS Collaboration}",

note = "Export Date: 23 January 2019",

year = "2019",

doi = "10.1016/j.physletb.2018.10.073",

language = "English",

volume = "790",

pages = "1--21",

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

issn = "0370-2693",

publisher = "Elsevier",

}

Aaboud, M, Åkesson, T, Bocchetta, S, Corrigan, E, Doglioni, C, Gregersen, K, 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, Zwalinski, L & ATLAS Collaboration 2019, 'Search for Higgs boson decays into a pair of light bosons in the bbμμ final state in pp collision at √s=13TeV with the ATLAS detector', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 790, pp. 1-21. https://doi.org/10.1016/j.physletb.2018.10.073

Search for Higgs boson decays into a pair of light bosons in the bbμμ final state in pp collision at √s=13TeV with the ATLAS detector. / Aaboud, M; Åkesson, Torsten; Bocchetta, Simona et al.
In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 790, 2019, p. 1-21.

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

TY - JOUR

T1 - Search for Higgs boson decays into a pair of light bosons in the bbμμ final state in pp collision at √s=13TeV with the ATLAS detector

AU - Aaboud, M

AU - Åkesson, Torsten

AU - Bocchetta, Simona

AU - Corrigan, Eric

AU - Doglioni, Caterina

AU - Gregersen, Kristian

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 - Zwalinski, L

AU - ATLAS Collaboration

N1 - Export Date: 23 January 2019

PY - 2019

Y1 - 2019

N2 - A search for decays of the Higgs boson into a pair of new spin-zero particles, H→aa, where the a-bosons decay into a b-quark pair and a muon pair, is presented. The search uses 36.1 fb−1 of proton–proton collision data at s=13 TeV recorded by the ATLAS experiment at the LHC in 2015 and 2016. No significant deviation from the Standard Model prediction is observed. Upper limits at 95% confidence level are placed on the branching ratio (σH/σSM)×B(H→aa→bbμμ), ranging from 1.2×10−4 to 8.4×10−4 in the a-boson mass range of 20–60 GeV. Model-independent limits are set on the visible production cross-section times the branching ratio to the bbμμ final state for new physics, σvis(X)×B(X→bbμμ), ranging from 0.1 fb to 0.73 fb for mμμ between 18 and 62 GeV. © 2018 The Author

AB - A search for decays of the Higgs boson into a pair of new spin-zero particles, H→aa, where the a-bosons decay into a b-quark pair and a muon pair, is presented. The search uses 36.1 fb−1 of proton–proton collision data at s=13 TeV recorded by the ATLAS experiment at the LHC in 2015 and 2016. No significant deviation from the Standard Model prediction is observed. Upper limits at 95% confidence level are placed on the branching ratio (σH/σSM)×B(H→aa→bbμμ), ranging from 1.2×10−4 to 8.4×10−4 in the a-boson mass range of 20–60 GeV. Model-independent limits are set on the visible production cross-section times the branching ratio to the bbμμ final state for new physics, σvis(X)×B(X→bbμμ), ranging from 0.1 fb to 0.73 fb for mμμ between 18 and 62 GeV. © 2018 The Author

U2 - 10.1016/j.physletb.2018.10.073

DO - 10.1016/j.physletb.2018.10.073

M3 - Article

SN - 0370-2693

VL - 790

SP - 1

EP - 21

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 -

Search for Higgs boson decays into a pair of light bosons in the bbμμ final state in pp collision at √s=13TeV with the ATLAS detector

Abstract

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