Search for Higgs boson decays into a pair of light bosons in the bbμμ final state in pp collision at √s = 12TeV with the ATLAS detector

Agni Bethani; Brian Cox; Jonathan Crane; Cinzia Da Via; Nicholas Dann; Alessandra Forti; David Lack; Frederick Loebinger; Jiri Masik; Stephen Menary; Francisca Munoz Sanchez; Alexander Oh; Emily Orgill; Joleen Pater; Yvonne Peters; Andrew Pilkington; Darren Price; Yang Qin; Jacob Rawling; Nicolas Scharmberg; Savanna Shaw; Stephen Watts; Terence Wyatt; The 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 = 12TeV with the ATLAS detector

Agni Bethani, Brian Cox, Jonathan Crane, Cinzia Da Via, Nicholas Dann, Alessandra Forti, David Lack, Frederick Loebinger, Jiri Masik, Stephen Menary, Francisca Munoz Sanchez, Alexander Oh, Emily Orgill, Joleen Pater, Yvonne Peters, Andrew Pilkington, Darren Price, Yang Qin, Jacob Rawling, Nicolas ScharmbergSavanna Shaw, Stephen Watts, Terence Wyatt, The ATLAS Collaboration

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Abstract

The inclusive production of four isolated charged leptons in pp collisions is analysed for the presence of hard double-parton scattering, using 20.2 fb ⁻¹ of data recorded in the ATLAS detector at the LHC at centre-of-mass energy s=8 TeV. In the four-lepton invariant-mass range of 80<m _4ℓ <1000 GeV, an artificial neural network is used to enhance the separation between single- and double-parton scattering based on the kinematics of the four leptons in the final state. An upper limit on the fraction of events originating from double-parton scattering is determined at 95% confidence level to be f _DPS =0.042, which results in an estimated lower limit on the effective cross section at 95% confidence level of 1.0 mb.

Original language	English
Journal	Physics Letters B
Volume	790
Early online date	21 Dec 2018
DOIs	https://doi.org/10.1016/j.physletb.2018.10.073
Publication status	Published - 10 Mar 2019

Keywords

Double Drell–Yan
Double parton-scattering
Four-lepton production
Higgs golden decay channel

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Bethani, A., Cox, B., Crane, J., Da Via, C., Dann, N., Forti, A., Lack, D., Loebinger, F., Masik, J., Menary, S., Munoz Sanchez, F., Oh, A., Orgill, E., Pater, J., Peters, Y., Pilkington, A., Price, D., Qin, Y., Rawling, J., ... The ATLAS Collaboration (2019). Search for Higgs boson decays into a pair of light bosons in the bbμμ final state in pp collision at √s = 12TeV with the ATLAS detector. Physics Letters B, 790. https://doi.org/10.1016/j.physletb.2018.10.073

@article{90095217c9f44756b963b81f16a2ec00,

title = "Search for Higgs boson decays into a pair of light bosons in the bbμμ final state in pp collision at √s = 12TeV with the ATLAS detector",

abstract = "The inclusive production of four isolated charged leptons in pp collisions is analysed for the presence of hard double-parton scattering, using 20.2 fb −1 of data recorded in the ATLAS detector at the LHC at centre-of-mass energy s=8 TeV. In the four-lepton invariant-mass range of 804ℓ <1000 GeV, an artificial neural network is used to enhance the separation between single- and double-parton scattering based on the kinematics of the four leptons in the final state. An upper limit on the fraction of events originating from double-parton scattering is determined at 95% confidence level to be f DPS =0.042, which results in an estimated lower limit on the effective cross section at 95% confidence level of 1.0 mb. ",

keywords = "Double Drell–Yan, Double parton-scattering, Four-lepton production, Higgs golden decay channel",

author = "Agni Bethani and Brian Cox and Jonathan Crane and {Da Via}, Cinzia and Nicholas Dann and Alessandra Forti and David Lack and Frederick Loebinger and Jiri Masik and Stephen Menary and {Munoz Sanchez}, Francisca and Alexander Oh and Emily Orgill and Joleen Pater and Yvonne Peters and Andrew Pilkington and Darren Price and Yang Qin and Jacob Rawling and Nicolas Scharmberg and Savanna Shaw and Stephen Watts and Terence Wyatt and {The ATLAS Collaboration}",

year = "2019",

month = mar,

day = "10",

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

language = "English",

volume = "790",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier BV",

}

Bethani, A, Cox, B, Crane, J, Da Via, C, Dann, N, Forti, A, Lack, D, Loebinger, F, Masik, J, Menary, S, Munoz Sanchez, F , Oh, A, Orgill, E, Pater, J, Peters, Y , Pilkington, A , Price, D, Qin, Y, Rawling, J, Scharmberg, N, Shaw, S, Watts, S, Wyatt, T & The ATLAS Collaboration 2019, 'Search for Higgs boson decays into a pair of light bosons in the bbμμ final state in pp collision at √s = 12TeV with the ATLAS detector', Physics Letters B, vol. 790. https://doi.org/10.1016/j.physletb.2018.10.073

TY - JOUR

T1 - Search for Higgs boson decays into a pair of light bosons in the bbμμ final state in pp collision at √s = 12TeV with the ATLAS detector

AU - Bethani, Agni

AU - Cox, Brian

AU - Crane, Jonathan

AU - Da Via, Cinzia

AU - Dann, Nicholas

AU - Forti, Alessandra

AU - Lack, David

AU - Loebinger, Frederick

AU - Masik, Jiri

AU - Menary, Stephen

AU - Munoz Sanchez, Francisca

AU - Oh, Alexander

AU - Orgill, Emily

AU - Pater, Joleen

AU - Peters, Yvonne

AU - Pilkington, Andrew

AU - Price, Darren

AU - Qin, Yang

AU - Rawling, Jacob

AU - Scharmberg, Nicolas

AU - Shaw, Savanna

AU - Watts, Stephen

AU - Wyatt, Terence

AU - The ATLAS Collaboration,

PY - 2019/3/10

Y1 - 2019/3/10

N2 - The inclusive production of four isolated charged leptons in pp collisions is analysed for the presence of hard double-parton scattering, using 20.2 fb −1 of data recorded in the ATLAS detector at the LHC at centre-of-mass energy s=8 TeV. In the four-lepton invariant-mass range of 804ℓ <1000 GeV, an artificial neural network is used to enhance the separation between single- and double-parton scattering based on the kinematics of the four leptons in the final state. An upper limit on the fraction of events originating from double-parton scattering is determined at 95% confidence level to be f DPS =0.042, which results in an estimated lower limit on the effective cross section at 95% confidence level of 1.0 mb.

AB - The inclusive production of four isolated charged leptons in pp collisions is analysed for the presence of hard double-parton scattering, using 20.2 fb −1 of data recorded in the ATLAS detector at the LHC at centre-of-mass energy s=8 TeV. In the four-lepton invariant-mass range of 804ℓ <1000 GeV, an artificial neural network is used to enhance the separation between single- and double-parton scattering based on the kinematics of the four leptons in the final state. An upper limit on the fraction of events originating from double-parton scattering is determined at 95% confidence level to be f DPS =0.042, which results in an estimated lower limit on the effective cross section at 95% confidence level of 1.0 mb.

KW - Double Drell–Yan

KW - Double parton-scattering

KW - Four-lepton production

KW - Higgs golden decay channel

U2 - 10.1016/j.physletb.2018.10.073

DO - 10.1016/j.physletb.2018.10.073

M3 - Article

SN - 0370-2693

VL - 790

JO - Physics Letters B

JF - Physics Letters B

ER -

Search for Higgs boson decays into a pair of light bosons in the bbμμ final state in pp collision at √s = 12TeV with the ATLAS detector

Abstract

Keywords

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