Search for the b¯b decay of the Standard Model Higgs boson in associated (W/Z)H production with the ATLAS detector

The ATLAS collaboration

doi:10.1007/JHEP01(2015)069

Search for the b¯b decay of the Standard Model Higgs boson in associated (W/Z)H production with the ATLAS detector

The ATLAS collaboration

Aix-Marseille Université
University of Oklahoma
Academia Sinica - Institute of Physics
IN2P3/CNRS
Azerbaijan National Academy of Sciences
University of Amsterdam
Oklahoma State University
Michigan State University
University of Toronto
Tel Aviv University
Technion-Israel Institute of Technology
CERN
Stockholm University
Oskar Klein Centre
National Institute for Nuclear Physics
Abdus Salam International Centre for Theoretical Physics
King's College London
AGH University of Krakow
Brookhaven National Laboratory
Yale University
Ludwig Maximilian University of Munich
Rutherford Appleton Laboratory
University of Belgrade
Laboratório de Instrumentação e Física Experimental de Partículas
University of Granada
University of Bern
Boston University
Joint Institute for Nuclear Research
University of Rome Tor Vergata
Lund University
The University of Tokyo
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
University of Bologna
University of Victoria BC
Université Grenoble Alpes
Instituto de Física La Plata
Horia Hulubei National Institute of Physics and Nuclear Engineering
University of Geneva
National Technical University of Athens
The University of Chicago

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

113 Scopus citations

Abstract

Abstract: A search for the (Formula presented.) decay of the Standard Model Higgs boson is performed with the ATLAS experiment using the full dataset recorded at the LHC in Run 1. The integrated luminosities used are 4.7 and 20.3 fb⁻¹ from pp collisions at (Formula presented.) and 8 TeV, respectively. The processes considered are associated (W/Z)H production, where W → eν/μν, Z → ee/μμ and Z → νν. The observed (expected) deviation from the background-only hypothesis corresponds to a significance of 1.4 (2.6) standard deviations and the ratio of the measured signal yield to the Standard Model expectation is found to be μ = 0.52 ± 0.32 (stat.) ± 0.24 (syst.) for a Higgs boson mass of 125.36 GeV. The analysis procedure is validated by a measurement of the yield of (W/Z)Z production with (Formula presented.) in the same final states as for the Higgs boson search, from which the ratio of the observed signal yield to the Standard Model expectation is found to be 0.74 ± 0.09 (stat.) ± 0.14 (syst.).[Figure not available: see fulltext.].

Original language	English
Article number	69
Journal	Journal of High Energy Physics
Volume	2015
Issue number	1
DOIs	https://doi.org/10.1007/JHEP01(2015)069
State	Published - Jan 1 2015

Keywords

Hadron-Hadron Scattering

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10.1007/JHEP01(2015)069

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@article{8cb469d836184266847adbdaa5d422ed,

title = "Search for the b¯b decay of the Standard Model Higgs boson in associated (W/Z)H production with the ATLAS detector",

abstract = "Abstract: A search for the (Formula presented.) decay of the Standard Model Higgs boson is performed with the ATLAS experiment using the full dataset recorded at the LHC in Run 1. The integrated luminosities used are 4.7 and 20.3 fb−1 from pp collisions at (Formula presented.) and 8 TeV, respectively. The processes considered are associated (W/Z)H production, where W → eν/μν, Z → ee/μμ and Z → νν. The observed (expected) deviation from the background-only hypothesis corresponds to a significance of 1.4 (2.6) standard deviations and the ratio of the measured signal yield to the Standard Model expectation is found to be μ = 0.52 ± 0.32 (stat.) ± 0.24 (syst.) for a Higgs boson mass of 125.36 GeV. The analysis procedure is validated by a measurement of the yield of (W/Z)Z production with (Formula presented.) in the same final states as for the Higgs boson search, from which the ratio of the observed signal yield to the Standard Model expectation is found to be 0.74 ± 0.09 (stat.) ± 0.14 (syst.).[Figure not available: see fulltext.].",

keywords = "Hadron-Hadron Scattering",

author = "\{The ATLAS collaboration\} and G. Aad and B. Abbott and J. Abdallah and \{Abdel Khalek\}, S. and O. Abdinov and R. Aben and B. Abi and M. Abolins and AbouZeid, \{O. S.\} and H. Abramowicz and H. Abreu and R. Abreu and Y. Abulaiti and Acharya, \{B. S.\} and L. Adamczyk and Adams, \{D. L.\} and J. Adelman and S. Adomeit and T. Adye and T. Agatonovic-Jovin and Aguilar-Saavedra, \{J. A.\} and M. Agustoni and Ahlen, \{S. P.\} and F. Ahmadov and G. Aielli and H. Akerstedt and {\AA}kesson, \{T. P.A.\} and G. Akimoto and Akimov, \{A. V.\} and Alberghi, \{G. L.\} and J. Albert and S. Albrand and \{Alconada Verzini\}, \{M. J.\} and M. Aleksa and Aleksandrov, \{I. N.\} and C. Alexa and G. Alexander and G. Alexandre and T. Alexopoulos and M. Alhroob and G. Alimonti and L. Alio and J. Alison and H. Arnold and \{Da Via\}, C. and V. Dao and J. Hobbs and J. Jia and G. Piacquadio and D. Tsybychev",

note = "Publisher Copyright: {\textcopyright} 2015, The Author(s).",

year = "2015",

month = jan,

day = "1",

doi = "10.1007/JHEP01(2015)069",

language = "English",

volume = "2015",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

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T1 - Search for the b¯b decay of the Standard Model Higgs boson in associated (W/Z)H production with the ATLAS detector

AU - The ATLAS collaboration

AU - Aad, G.

AU - Abbott, B.

AU - Abdallah, J.

AU - Abdel Khalek, S.

AU - Abdinov, O.

AU - Aben, R.

AU - Abi, B.

AU - Abolins, M.

AU - AbouZeid, O. S.

AU - Abramowicz, H.

AU - Abreu, H.

AU - Abreu, R.

AU - Abulaiti, Y.

AU - Acharya, B. S.

AU - Adamczyk, L.

AU - Adams, D. L.

AU - Adelman, J.

AU - Adomeit, S.

AU - Adye, T.

AU - Agatonovic-Jovin, T.

AU - Aguilar-Saavedra, J. A.

AU - Agustoni, M.

AU - Ahlen, S. P.

AU - Ahmadov, F.

AU - Aielli, G.

AU - Akerstedt, H.

AU - Åkesson, T. P.A.

AU - Akimoto, G.

AU - Akimov, A. V.

AU - Alberghi, G. L.

AU - Albert, J.

AU - Albrand, S.

AU - Alconada Verzini, M. J.

AU - Aleksa, M.

AU - Aleksandrov, I. N.

AU - Alexa, C.

AU - Alexander, G.

AU - Alexandre, G.

AU - Alexopoulos, T.

AU - Alhroob, M.

AU - Alimonti, G.

AU - Alio, L.

AU - Alison, J.

AU - Arnold, H.

AU - Da Via, C.

AU - Dao, V.

AU - Hobbs, J.

AU - Jia, J.

AU - Piacquadio, G.

AU - Tsybychev, D.

PY - 2015/1/1

Y1 - 2015/1/1

N2 - Abstract: A search for the (Formula presented.) decay of the Standard Model Higgs boson is performed with the ATLAS experiment using the full dataset recorded at the LHC in Run 1. The integrated luminosities used are 4.7 and 20.3 fb−1 from pp collisions at (Formula presented.) and 8 TeV, respectively. The processes considered are associated (W/Z)H production, where W → eν/μν, Z → ee/μμ and Z → νν. The observed (expected) deviation from the background-only hypothesis corresponds to a significance of 1.4 (2.6) standard deviations and the ratio of the measured signal yield to the Standard Model expectation is found to be μ = 0.52 ± 0.32 (stat.) ± 0.24 (syst.) for a Higgs boson mass of 125.36 GeV. The analysis procedure is validated by a measurement of the yield of (W/Z)Z production with (Formula presented.) in the same final states as for the Higgs boson search, from which the ratio of the observed signal yield to the Standard Model expectation is found to be 0.74 ± 0.09 (stat.) ± 0.14 (syst.).[Figure not available: see fulltext.].

AB - Abstract: A search for the (Formula presented.) decay of the Standard Model Higgs boson is performed with the ATLAS experiment using the full dataset recorded at the LHC in Run 1. The integrated luminosities used are 4.7 and 20.3 fb−1 from pp collisions at (Formula presented.) and 8 TeV, respectively. The processes considered are associated (W/Z)H production, where W → eν/μν, Z → ee/μμ and Z → νν. The observed (expected) deviation from the background-only hypothesis corresponds to a significance of 1.4 (2.6) standard deviations and the ratio of the measured signal yield to the Standard Model expectation is found to be μ = 0.52 ± 0.32 (stat.) ± 0.24 (syst.) for a Higgs boson mass of 125.36 GeV. The analysis procedure is validated by a measurement of the yield of (W/Z)Z production with (Formula presented.) in the same final states as for the Higgs boson search, from which the ratio of the observed signal yield to the Standard Model expectation is found to be 0.74 ± 0.09 (stat.) ± 0.14 (syst.).[Figure not available: see fulltext.].

KW - Hadron-Hadron Scattering

UR - https://www.scopus.com/pages/publications/84921341275

U2 - 10.1007/JHEP01(2015)069

DO - 10.1007/JHEP01(2015)069

M3 - Article

AN - SCOPUS:84921341275

SN - 1126-6708

VL - 2015

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 1

M1 - 69

ER -

Search for the b¯b decay of the Standard Model Higgs boson in associated (W/Z)H production with the ATLAS detector

Abstract

Keywords

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