Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC

G. Aad; Mogens Dam; Jørn Dines Hansen; Jørgen Beck Hansen; John Renner Hansen; Peter Henrik Hansen; Esben Bryndt Klinkby; Nele Maria Philomena Boelaert; Morten Dam Jørgensen; Troels Christian Petersen; Björn Stefan Nilsson; Stefania Xella; Simon Johann Franz Heisterkamp; Sascha Mehlhase; Ask Emil Løvschall-Jensen

Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC

G. Aad, Mogens Dam, Jørn Dines Hansen, Jørgen Beck Hansen, John Renner Hansen, Peter Henrik Hansen, Esben Bryndt Klinkby, Nele Maria Philomena Boelaert, Morten Dam Jørgensen, Troels Christian Petersen, Björn Stefan Nilsson, Stefania Xella, Simon Johann Franz Heisterkamp, Sascha Mehlhase, Ask Emil Løvschall-Jensen

6082 Citationer (Scopus)

Abstract

A search for the Standard Model Higgs boson in proton-proton collisions with the ATLAS detector at the LHC is presented. The datasets used correspond to integrated luminosities of approximately 4.8 fb ^-1 collected at s=7 TeV in 2011 and 5.8 fb ^-1 at s=8 TeV in 2012. Individual searches in the channels H→ZZ ^(*) →4ℓ, H→γγ and H→WW ^(*) →eνμν in the 8 TeV data are combined with previously published results of searches for H→ZZ ^(*) , WW ^(*) , bb- and τ ⁺ τ ^- in the 7 TeV data and results from improved analyses of the H→ZZ ^(*) →4ℓ and H→γγ channels in the 7 TeV data. Clear evidence for the production of a neutral boson with a measured mass of 126.0±0.4(stat)±0.4(sys)GeV is presented. This observation, which has a significance of 5.9 standard deviations, corresponding to a background fluctuation probability of 1.7×10 ^-9 , is compatible with the production and decay of the Standard Model Higgs boson.

Originalsprog	Engelsk
Tidsskrift	Physics Letters B
Vol/bind	716
Udgave nummer	1
Sider (fra-til)	1-29
ISSN	0370-2693
Status	Udgivet - 17 sep. 2012

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http://dx.doi.org/10.1016/j.physletb.2012.08.020

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Aad, G., Dam, M., Hansen, J. D., Hansen, J. B., Hansen, J. R., Hansen, P. H., Klinkby, E. B., Boelaert, N. M. P., Jørgensen, M. D., Petersen, T. C., Nilsson, B. S., Xella, S., Heisterkamp, S. J. F., Mehlhase, S., & Løvschall-Jensen, A. E. (2012). Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC. Physics Letters B, 716(1), 1-29. http://dx.doi.org/10.1016/j.physletb.2012.08.020

Aad, G, Dam, M , Hansen, JD , Hansen, JB , Hansen, JR , Hansen, PH, Klinkby, EB, Boelaert, NMP, Jørgensen, MD, Petersen, TC, Nilsson, BS, Xella, S, Heisterkamp, SJF, Mehlhase, S & Løvschall-Jensen, AE 2012, 'Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC', Physics Letters B, bind 716, nr. 1, s. 1-29. <http://dx.doi.org/10.1016/j.physletb.2012.08.020>

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title = "Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC",

abstract = " A search for the Standard Model Higgs boson in proton-proton collisions with the ATLAS detector at the LHC is presented. The datasets used correspond to integrated luminosities of approximately 4.8 fb -1 collected at s=7 TeV in 2011 and 5.8 fb -1 at s=8 TeV in 2012. Individual searches in the channels H→ZZ (*) →4ℓ, H→γγ and H→WW (*) →eνμν in the 8 TeV data are combined with previously published results of searches for H→ZZ (*) , WW (*) , bb- and τ + τ - in the 7 TeV data and results from improved analyses of the H→ZZ (*) →4ℓ and H→γγ channels in the 7 TeV data. Clear evidence for the production of a neutral boson with a measured mass of 126.0±0.4(stat)±0.4(sys)GeV is presented. This observation, which has a significance of 5.9 standard deviations, corresponding to a background fluctuation probability of 1.7×10 -9 , is compatible with the production and decay of the Standard Model Higgs boson.",

author = "G. Aad and Mogens Dam and Hansen, {J{\o}rn Dines} and Hansen, {J{\o}rgen Beck} and Hansen, {John Renner} and Hansen, {Peter Henrik} and Klinkby, {Esben Bryndt} and Boelaert, {Nele Maria Philomena} and J{\o}rgensen, {Morten Dam} and Petersen, {Troels Christian} and Nilsson, {Bj{\"o}rn Stefan} and Stefania Xella and Heisterkamp, {Simon Johann Franz} and Sascha Mehlhase and L{\o}vschall-Jensen, {Ask Emil}",

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T1 - Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC

AU - Aad, G.

AU - Dam, Mogens

AU - Hansen, Jørn Dines

AU - Hansen, Jørgen Beck

AU - Hansen, John Renner

AU - Hansen, Peter Henrik

AU - Klinkby, Esben Bryndt

AU - Boelaert, Nele Maria Philomena

AU - Jørgensen, Morten Dam

AU - Petersen, Troels Christian

AU - Nilsson, Björn Stefan

AU - Xella, Stefania

AU - Heisterkamp, Simon Johann Franz

AU - Mehlhase, Sascha

AU - Løvschall-Jensen, Ask Emil

PY - 2012/9/17

Y1 - 2012/9/17

N2 - A search for the Standard Model Higgs boson in proton-proton collisions with the ATLAS detector at the LHC is presented. The datasets used correspond to integrated luminosities of approximately 4.8 fb -1 collected at s=7 TeV in 2011 and 5.8 fb -1 at s=8 TeV in 2012. Individual searches in the channels H→ZZ (*) →4ℓ, H→γγ and H→WW (*) →eνμν in the 8 TeV data are combined with previously published results of searches for H→ZZ (*) , WW (*) , bb- and τ + τ - in the 7 TeV data and results from improved analyses of the H→ZZ (*) →4ℓ and H→γγ channels in the 7 TeV data. Clear evidence for the production of a neutral boson with a measured mass of 126.0±0.4(stat)±0.4(sys)GeV is presented. This observation, which has a significance of 5.9 standard deviations, corresponding to a background fluctuation probability of 1.7×10 -9 , is compatible with the production and decay of the Standard Model Higgs boson.

AB - A search for the Standard Model Higgs boson in proton-proton collisions with the ATLAS detector at the LHC is presented. The datasets used correspond to integrated luminosities of approximately 4.8 fb -1 collected at s=7 TeV in 2011 and 5.8 fb -1 at s=8 TeV in 2012. Individual searches in the channels H→ZZ (*) →4ℓ, H→γγ and H→WW (*) →eνμν in the 8 TeV data are combined with previously published results of searches for H→ZZ (*) , WW (*) , bb- and τ + τ - in the 7 TeV data and results from improved analyses of the H→ZZ (*) →4ℓ and H→γγ channels in the 7 TeV data. Clear evidence for the production of a neutral boson with a measured mass of 126.0±0.4(stat)±0.4(sys)GeV is presented. This observation, which has a significance of 5.9 standard deviations, corresponding to a background fluctuation probability of 1.7×10 -9 , is compatible with the production and decay of the Standard Model Higgs boson.

M3 - Journal article

SN - 0370-2693

VL - 716

SP - 1

EP - 29

JO - Physics Letters B

JF - Physics Letters B

IS - 1

ER -

Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC

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