Search for high-mass new phenomena in the dilepton final state using proton–proton collisions at s=13TeV with the ATLAS detector

The ATLAS collaboration

doi:10.1016/j.physletb.2016.08.055

Search for high-mass new phenomena in the dilepton final state using proton–proton collisions at s=13TeV with the ATLAS detector

The ATLAS collaboration

Université Mohamed Premier
Aix Marseille Université
Homer L. Dodge Department of Physics and Astronomy
University of Oklahoma
University of Iowa
Azerbaijan Academy of Sciences
Laboratoire de l'Accélérateur Linéaire
University of Amsterdam
University of California at Santa Cruz
Department of Physics and Astronomy
University of Sussex
Raymond and Beverly Sackler School of Physics and Astronomy
Tel Aviv University
Department of Physics
Technion - Israel Institute of Technology
Center for High Energy Physics
University of Oregon
Department of Physics
Stockholm University
Oskar Klein Centre
INFN Gruppo Collegato di Udine
INFN Sezione di Trieste
Abdus Salam International Centre for Theoretical Physics
Department of Physics
King's College London
Faculty of Physics and Applied Computer Science
Agh University of Science and Technology Faculty of Computer Science
Physics Department
Brookhaven National Laboratory
Department of Physics
Northern Illinois University
Fakultät für Physik
Universität München
Rutherford Appleton Laboratory
Oliver Lodge Laboratory
University of Liverpool
Institute of Physics
University of Belgrade
II Physikalisches Institut
Georg-August-Universität Göttingen
LIP - Lisboa
Departamento de Fisica Teorica y del Cosmos
University of Granada
Boston University
Joint Institute for Nuclear Research, Dubna
INFN Roma Tor Vergata
Dipartimento di Fisica
University of Rome “Tor Vergata”
Fysiska Institutionen
Lund University
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
INFN Sezione di Bologna
Dipartimento di Fisica e Astronomia
University of Bologna
Department of Physics and Astronomy
University of Victoria
LTHE (UMR 5564 CNRS/IRD/Université de Grenoble)
Instituto de Física La Plata
European Organization for Nuclear Research
Horia Hulubei National Institute of Physics and Nuclear Engineering
Physics Department
National Technical University of Athens
Czech Technical University in Prague
Sezione di Lecce
Dipartimento di Matematica e Fisica
University of Salento
Sezione INFN di Milano
University of Chicago
Nevis Laboratory
Columbia University
School of Physics and Astronomy
University of Birmingham
INFN Sezione di Napoli
Dipartimento di Fisica
University of Naples Federico II
University of Cambridge
Université Savoie Mont Blanc

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

77 Citations (Scopus)

Abstract

A search is conducted for both resonant and non-resonant high-mass new phenomena in dielectron and dimuon final states. The search uses 3.2fb⁻¹ of proton–proton collision data, collected at s=13TeV by the ATLAS experiment at the LHC in 2015. The dilepton invariant mass is used as the discriminating variable. No significant deviation from the Standard Model prediction is observed; therefore limits are set on the signal model parameters of interest at 95% credibility level. Upper limits are set on the cross-section times branching ratio for resonances decaying to dileptons, and the limits are converted into lower limits on the resonance mass, ranging between 2.74 TeV and 3.36 TeV, depending on the model. Lower limits on the ℓℓqq contact interaction scale are set between 16.7 TeV and 25.2 TeV, also depending on the model.

Original language	English
Pages (from-to)	372-392
Number of pages	21
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	761
DOIs	https://doi.org/10.1016/j.physletb.2016.08.055
Publication status	Published - 10 Oct 2016
Externally published	Yes

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10.1016/j.physletb.2016.08.055

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@article{5e5c7d1c6b1b4c17844edea8c2b3f0fd,

title = "Search for high-mass new phenomena in the dilepton final state using proton{\textendash}proton collisions at s=13TeV with the ATLAS detector",

abstract = "A search is conducted for both resonant and non-resonant high-mass new phenomena in dielectron and dimuon final states. The search uses 3.2fb−1 of proton{\textendash}proton collision data, collected at s=13TeV by the ATLAS experiment at the LHC in 2015. The dilepton invariant mass is used as the discriminating variable. No significant deviation from the Standard Model prediction is observed; therefore limits are set on the signal model parameters of interest at 95\% credibility level. Upper limits are set on the cross-section times branching ratio for resonances decaying to dileptons, and the limits are converted into lower limits on the resonance mass, ranging between 2.74 TeV and 3.36 TeV, depending on the model. Lower limits on the ℓℓqq contact interaction scale are set between 16.7 TeV and 25.2 TeV, also depending on the model.",

author = "\{The ATLAS collaboration\} and M. Aaboud and G. Aad and B. Abbott and J. Abdallah and O. Abdinov and B. Abeloos and R. Aben and AbouZeid, \{O. S.\} and Abraham, \{N. L.\} 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 Affolder, \{A. A.\} and T. Agatonovic-Jovin and J. Agricola and Aguilar-Saavedra, \{J. A.\} and Ahlen, \{S. P.\} and F. Ahmadov and G. Aielli and H. Akerstedt and {\AA}kesson, \{T. P.A.\} 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 T. Alexopoulos and M. Alhroob and B. Ali and M. Aliev and G. Alimonti and J. Alison and Alkire, \{S. P.\} and Allbrooke, \{B. M.M.\} and Allen, \{B. W.\} and Allport, \{P. P.\} and A. Aloisio and T. Mueller and O. Simard",

note = "Publisher Copyright: {\textcopyright} 2016 The Author",

year = "2016",

month = oct,

day = "10",

doi = "10.1016/j.physletb.2016.08.055",

language = "English",

volume = "761",

pages = "372--392",

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

issn = "0370-2693",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Search for high-mass new phenomena in the dilepton final state using proton–proton collisions at s=13TeV with the ATLAS detector

AU - The ATLAS collaboration

AU - Aaboud, M.

AU - Aad, G.

AU - Abbott, B.

AU - Abdallah, J.

AU - Abdinov, O.

AU - Abeloos, B.

AU - Aben, R.

AU - AbouZeid, O. S.

AU - Abraham, N. L.

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 - Affolder, A. A.

AU - Agatonovic-Jovin, T.

AU - Agricola, J.

AU - Aguilar-Saavedra, J. A.

AU - Ahlen, S. P.

AU - Ahmadov, F.

AU - Aielli, G.

AU - Akerstedt, H.

AU - Åkesson, T. P.A.

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 - Alexopoulos, T.

AU - Alhroob, M.

AU - Ali, B.

AU - Aliev, M.

AU - Alimonti, G.

AU - Alison, J.

AU - Alkire, S. P.

AU - Allbrooke, B. M.M.

AU - Allen, B. W.

AU - Allport, P. P.

AU - Aloisio, A.

AU - Mueller, T.

AU - Simard, O.

PY - 2016/10/10

Y1 - 2016/10/10

N2 - A search is conducted for both resonant and non-resonant high-mass new phenomena in dielectron and dimuon final states. The search uses 3.2fb−1 of proton–proton collision data, collected at s=13TeV by the ATLAS experiment at the LHC in 2015. The dilepton invariant mass is used as the discriminating variable. No significant deviation from the Standard Model prediction is observed; therefore limits are set on the signal model parameters of interest at 95% credibility level. Upper limits are set on the cross-section times branching ratio for resonances decaying to dileptons, and the limits are converted into lower limits on the resonance mass, ranging between 2.74 TeV and 3.36 TeV, depending on the model. Lower limits on the ℓℓqq contact interaction scale are set between 16.7 TeV and 25.2 TeV, also depending on the model.

AB - A search is conducted for both resonant and non-resonant high-mass new phenomena in dielectron and dimuon final states. The search uses 3.2fb−1 of proton–proton collision data, collected at s=13TeV by the ATLAS experiment at the LHC in 2015. The dilepton invariant mass is used as the discriminating variable. No significant deviation from the Standard Model prediction is observed; therefore limits are set on the signal model parameters of interest at 95% credibility level. Upper limits are set on the cross-section times branching ratio for resonances decaying to dileptons, and the limits are converted into lower limits on the resonance mass, ranging between 2.74 TeV and 3.36 TeV, depending on the model. Lower limits on the ℓℓqq contact interaction scale are set between 16.7 TeV and 25.2 TeV, also depending on the model.

U2 - 10.1016/j.physletb.2016.08.055

DO - 10.1016/j.physletb.2016.08.055

M3 - Article

AN - SCOPUS:84989950058

SN - 0370-2693

VL - 761

SP - 372

EP - 392

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 high-mass new phenomena in the dilepton final state using proton–proton collisions at s=13TeV with the ATLAS detector

Abstract

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