Search for the Higgs boson in the H→WW→ℓνjj decay channel at √s=7 TeV with the ATLAS detector

ATLAS Collaboration

doi:10.1016/j.physletb.2012.10.066

Search for the Higgs boson in the H→WW→ℓνjj decay channel at √s=7 TeV with the ATLAS detector

ATLAS Collaboration

Stony Brook University, University at Albany

Kutahya Dumlupinar University
Istanbul Technical University
West University of Timisoara
University of Freiburg
University of Bonn
University of Oklahoma
Institute for High Energy Physics
IN2P3/CNRS
University of Geneva
Azerbaijan National Academy of Sciences
University of Amsterdam
Oklahoma State University
Michigan State University
University of Toronto
Tel Aviv University
Centre d'Etudes de Saclay
National Institute for Nuclear Physics
University of Milan
Abdus Salam International Centre for Theoretical Physics
AGH University of Krakow
United States Department of Energy
Hampton University
Yale University
Ludwig Maximilian University of Munich
Queen Mary University of London
Rutherford Appleton Laboratory
Brandeis University
University of Granada
Laboratório de Instrumentação e Física Experimental de Partículas
University of Bern
Johannes Gutenberg University Mainz
Boston University
Stony Brook University
University of Texas at Dallas
University of Rome Tor Vergata
Bogazici University
Lund University
The University of Tokyo
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
SUNY Albany
Royal Holloway University of London
University of Victoria BC
Laboratoire de Physique Subatomique et de Cosmologie de Grenoble
CERN
Joint Institute for Nuclear Research
Horia Hulubei National Institute of Physics and Nuclear Engineering
IThemba Labs
Department of Physics
University of South Africa
Cadi Ayyad University
Moroccan Foundation for Advanced Science Innovation and Research (MAScIR)
Dep Física and CEFITEC of Faculdade de Ciências e Tecnologia
NOVA University Lisbon
University of Freiburg
University of Bonn
University of Oklahoma
Laboratoire de l'Accélérateur Linéaire
Azerbaijan National Academy of Sciences
Oklahoma State University
Michigan State University
University of Toronto
Tel Aviv University
National Institute for Nuclear Physics
Abdus Salam International Centre for Theoretical Physics
United States Department of Energy
Yale University
Ludwig Maximilian University of Munich
Queen Mary University of London
Rutherford Appleton Laboratory
Brandeis University
Laboratório de Instrumentação e Física Experimental de Partículas
University of Bern
Johannes Gutenberg University Mainz
Boston University
Stony Brook University
University of Rome Tor Vergata
Lund University
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
SUNY Albany
Royal Holloway University of London
University of Victoria BC
CERN
Joint Institute for Nuclear Research
Horia Hulubei National Institute of Physics and Nuclear Engineering
National Technical University of Athens
University of Udine
Humboldt University of Berlin
Department of Physics
University of South Africa
Cadi Ayyad University
Dep Física and CEFITEC of Faculdade de Ciências e Tecnologia

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

11 Scopus citations

Abstract

A search for the Standard Model Higgs boson has been performed in the H→WW→ℓνjj channel using 4.7 fb⁻¹ of pp collision data recorded at a centre-of-mass energy of s=7 TeV with the ATLAS detector at the Large Hadron Collider. Higgs boson candidates produced in association with zero, one or two jets are included in the analysis to maximize the acceptance for both gluon fusion and weak boson fusion Higgs boson production processes. No significant excess of events is observed over the expected background and limits on the Higgs boson production cross section are derived for a Higgs boson mass in the range 300 GeV<m_H<600 GeV. The best sensitivity is reached for m_H=400 GeV, where the observed (expected) 95% confidence level upper bound on the cross section for H→WW produced in association with zero or one jet is 2.2 pb (1.9 pb), corresponding to 1.9 (1.6) times the Standard Model prediction. In the Higgs boson plus two jets channel, which is more sensitive to the weak boson fusion process, the observed (expected) 95% confidence level upper bound on the cross section for H→WW production with m_H=400 GeV is 0.7 pb (0.6 pb), corresponding to 7.9 (6.5) times the Standard Model prediction.

Original language	English
Pages (from-to)	391-410
Number of pages	20
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	718
Issue number	2
DOIs	https://doi.org/10.1016/j.physletb.2012.10.066
State	Published - Dec 5 2012

Keywords

Higgs
LHC
TLAS
WW

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10.1016/j.physletb.2012.10.066

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@article{df02e46dd6e34638b7a3fda971fc97d3,

title = "Search for the Higgs boson in the H→WW→ℓνjj decay channel at √s=7 TeV with the ATLAS detector",

abstract = "A search for the Standard Model Higgs boson has been performed in the H→WW→ℓνjj channel using 4.7 fb−1 of pp collision data recorded at a centre-of-mass energy of s=7 TeV with the ATLAS detector at the Large Hadron Collider. Higgs boson candidates produced in association with zero, one or two jets are included in the analysis to maximize the acceptance for both gluon fusion and weak boson fusion Higgs boson production processes. No significant excess of events is observed over the expected background and limits on the Higgs boson production cross section are derived for a Higgs boson mass in the range 300 GeVH<600 GeV. The best sensitivity is reached for mH=400 GeV, where the observed (expected) 95\% confidence level upper bound on the cross section for H→WW produced in association with zero or one jet is 2.2 pb (1.9 pb), corresponding to 1.9 (1.6) times the Standard Model prediction. In the Higgs boson plus two jets channel, which is more sensitive to the weak boson fusion process, the observed (expected) 95\% confidence level upper bound on the cross section for H→WW production with mH=400 GeV is 0.7 pb (0.6 pb), corresponding to 7.9 (6.5) times the Standard Model prediction.",

keywords = "Higgs, LHC, TLAS, WW",

author = "\{ATLAS Collaboration\} and G. Aad and T. Abajyan and B. Abbott and J. Abdallah and \{Abdel Khalek\}, S. and Abdelalim, \{A. A.\} and O. Abdinov and R. Aben and B. Abi and M. Abolins and AbouZeid, \{O. S.\} and H. Abramowicz and H. Abreu and E. Acerbi and Acharya, \{B. S.\} and L. Adamczyk and Adams, \{D. L.\} and Addy, \{T. N.\} and J. Adelman and S. Adomeit and P. Adragna and T. Adye and S. Aefsky and Aguilar-Saavedra, \{J. A.\} and M. Agustoni and M. Aharrouche and Ahlen, \{S. P.\} and F. Ahles and A. Ahmad and M. Ahsan and G. Aielli and T. Akdogan and {\AA}kesson, \{T. P.A.\} and G. Akimoto and Akimov, \{A. V.\} and Alam, \{M. S.\} and Alam, \{M. A.\} and J. Albert and S. Albrand and M. Aleksa and Aleksandrov, \{I. N.\} and F. Alessandria and C. Alexa and G. Alexander and \{Da Via\}, Cinzia and V. Dao and J. Hobbs and J. Jia and G. Piacquadio and D. Tsybychev and G. Alexandre and T. Alexopoulos and M. Alhroob and M. Aliev and J. Ernst and V. Jain",

note = "Publisher Copyright: {\textcopyright} 2012 CERN",

year = "2012",

month = dec,

day = "5",

doi = "10.1016/j.physletb.2012.10.066",

language = "English",

volume = "718",

pages = "391--410",

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

issn = "0370-2693",

number = "2",

}

TY - JOUR

T1 - Search for the Higgs boson in the H→WW→ℓνjj decay channel at √s=7 TeV with the ATLAS detector

AU - ATLAS Collaboration

AU - Aad, G.

AU - Abajyan, T.

AU - Abbott, B.

AU - Abdallah, J.

AU - Abdel Khalek, S.

AU - Abdelalim, A. A.

AU - Abdinov, O.

AU - Aben, R.

AU - Abi, B.

AU - Abolins, M.

AU - AbouZeid, O. S.

AU - Abramowicz, H.

AU - Abreu, H.

AU - Acerbi, E.

AU - Acharya, B. S.

AU - Adamczyk, L.

AU - Adams, D. L.

AU - Addy, T. N.

AU - Adelman, J.

AU - Adomeit, S.

AU - Adragna, P.

AU - Adye, T.

AU - Aefsky, S.

AU - Aguilar-Saavedra, J. A.

AU - Agustoni, M.

AU - Aharrouche, M.

AU - Ahlen, S. P.

AU - Ahles, F.

AU - Ahmad, A.

AU - Ahsan, M.

AU - Aielli, G.

AU - Akdogan, T.

AU - Åkesson, T. P.A.

AU - Akimoto, G.

AU - Akimov, A. V.

AU - Alam, M. S.

AU - Alam, M. A.

AU - Albert, J.

AU - Albrand, S.

AU - Aleksa, M.

AU - Aleksandrov, I. N.

AU - Alessandria, F.

AU - Alexa, C.

AU - Alexander, G.

AU - Da Via, Cinzia

AU - Dao, V.

AU - Hobbs, J.

AU - Jia, J.

AU - Piacquadio, G.

AU - Tsybychev, D.

AU - Alexandre, G.

AU - Alexopoulos, T.

AU - Alhroob, M.

AU - Aliev, M.

AU - Ernst, J.

AU - Jain, V.

PY - 2012/12/5

Y1 - 2012/12/5

N2 - A search for the Standard Model Higgs boson has been performed in the H→WW→ℓνjj channel using 4.7 fb−1 of pp collision data recorded at a centre-of-mass energy of s=7 TeV with the ATLAS detector at the Large Hadron Collider. Higgs boson candidates produced in association with zero, one or two jets are included in the analysis to maximize the acceptance for both gluon fusion and weak boson fusion Higgs boson production processes. No significant excess of events is observed over the expected background and limits on the Higgs boson production cross section are derived for a Higgs boson mass in the range 300 GeVH<600 GeV. The best sensitivity is reached for mH=400 GeV, where the observed (expected) 95% confidence level upper bound on the cross section for H→WW produced in association with zero or one jet is 2.2 pb (1.9 pb), corresponding to 1.9 (1.6) times the Standard Model prediction. In the Higgs boson plus two jets channel, which is more sensitive to the weak boson fusion process, the observed (expected) 95% confidence level upper bound on the cross section for H→WW production with mH=400 GeV is 0.7 pb (0.6 pb), corresponding to 7.9 (6.5) times the Standard Model prediction.

AB - A search for the Standard Model Higgs boson has been performed in the H→WW→ℓνjj channel using 4.7 fb−1 of pp collision data recorded at a centre-of-mass energy of s=7 TeV with the ATLAS detector at the Large Hadron Collider. Higgs boson candidates produced in association with zero, one or two jets are included in the analysis to maximize the acceptance for both gluon fusion and weak boson fusion Higgs boson production processes. No significant excess of events is observed over the expected background and limits on the Higgs boson production cross section are derived for a Higgs boson mass in the range 300 GeVH<600 GeV. The best sensitivity is reached for mH=400 GeV, where the observed (expected) 95% confidence level upper bound on the cross section for H→WW produced in association with zero or one jet is 2.2 pb (1.9 pb), corresponding to 1.9 (1.6) times the Standard Model prediction. In the Higgs boson plus two jets channel, which is more sensitive to the weak boson fusion process, the observed (expected) 95% confidence level upper bound on the cross section for H→WW production with mH=400 GeV is 0.7 pb (0.6 pb), corresponding to 7.9 (6.5) times the Standard Model prediction.

KW - Higgs

KW - LHC

KW - TLAS

KW - WW

UR - https://www.scopus.com/pages/publications/105026920860

U2 - 10.1016/j.physletb.2012.10.066

DO - 10.1016/j.physletb.2012.10.066

M3 - Article

SN - 0370-2693

VL - 718

SP - 391

EP - 410

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 2

ER -

Search for the Higgs boson in the H→WW→ℓνjj decay channel at √s=7 TeV with the ATLAS detector

Abstract

Keywords

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