Observation of Same-Sign WW Production from Double Parton Scattering in Proton-Proton Collisions at sqrt[s]=13  TeV

CMS Collaboration

doi:10.1103/PhysRevLett.131.091803

Observation of Same-Sign WW Production from Double Parton Scattering in Proton-Proton Collisions at sqrt[s]=13 TeV

CMS Collaboration

Física

A. Alikhanian Yerevan Institute of Physics
Yerevan State University
Institut für Hochenergiephysik der OeAW
TU Wien
University of Antwerp
Arab Academy for Science, Technology and Maritime Transport
Université Libre de Bruxelles
Vrije Universiteit Brussel
Korea University
Ghent University
Université catholique de Louvain
Centro Brasileiro de Pesquisas Fisicas
Universidade do Estado do Rio de Janeiro
Universidade Estadual de Campinas
Universidade Federal do Rio Grande do Sul
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Universidade do Estado do Amazonas
Universidade Estadual Paulista Júlio de Mesquita Filho
Bulgarian Academy of Sciences
University of Sofia
Beihang University
University of Chinese Academy of Sciences
Tsinghua University
Nanjing Normal University
University of Iowa
Institute of High Energy Physics Chinese Academy of Science
University of Florida
Massachusetts Institute of Technology
Peking University
Sun Yat-Sen University
Northeastern University
CAS - Institute of Modern Physics
Rice University
Zhejiang University
Universidad de los Andes Colombia
Universidad de Antioquia
University of Split
Faculty of Science, University of Split
Institute Rudjer Boskovic
CERN
University of Cyprus
Charles University
Escuela Politecnica Nacional
Egyptian Network of High Energy Physics
British University
Suez University
Fayoum University
National Institute of Chemical Physics and Biophysics, Tallinn
University of Helsinki
Helsinki Institute of Physics
Lappeenranta University of Technology
Université Paris-Saclay
Purdue University
Laboratoire Leprince-Ringuet
Institut Pluridisciplinaire Hubert Curien
Université de Haute-Alsace
Institut de Physique des 2 Infinis de Lyon
Seoul National University
Georgian Technical University
RWTH Aachen University
University of Wisconsin-Madison
Tata Institute of Fundamental Research, Mumbai
Indian Institute of Technology Madras
Erzincan University
Deutsches Elektronen-Synchrotron (DESY)
Saha Institute of Nuclear Physics
Northwestern University
University of Hamburg
Isfahan University of Technology
Brandenburg University of Technology
Forschungszentrum Jülich GmbH
University of Kansas
Karlsruhe Institute of Technology
NCSR Demokritos
National and Kapodistrian University of Athens
National Technical University of Athens
University of Ioannina
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Eszterhazy Karoly University
KFKI Research Institute for Particle and Nuclear Physics
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Indian Institute of Science Education and Research Pune
Sharif University of Technology
Institute for Research for Fundamental Sciences
University of Science and Technology of Mazandaran, Behshahr
University College Dublin
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Helwan University
INFN Sezione di Bologna
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Energy and Sustainable Economic Development
National Institute for Nuclear Physics
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Universidad Iberoamericana (UIA)
Benemerita Universidad Autonoma de Puebla
University of Montenegro
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AGH University of Krakow
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University of Belgrade
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Hacettepe University
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Istanbul University - Cerrahpaşa
Yildiz Technical University
Institute for Scintillation Materials of National Academy of Science of Ukraine
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Wayne State University
Institute of Nuclear Physics of the Uzbekistan Academy of Sciences

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21 Scopus citations

Abstract

The first observation of the production of W^{±}W^{±} bosons from double parton scattering processes using same-sign electron-muon and dimuon events in proton-proton collisions is reported. The data sample corresponds to an integrated luminosity of 138 fb^{-1} recorded at a center-of-mass energy of 13 TeV using the CMS detector at the CERN LHC. Multivariate discriminants are used to distinguish the signal process from the main backgrounds. A binned maximum likelihood fit is performed to extract the signal cross section. The measured cross section for production of same-sign W bosons decaying leptonically is 80.7±11.2(stat) _{-8.6}^{+9.5}(syst)±12.1(model) fb, whereas the measured fiducial cross section is 6.28±0.81(stat)±0.69(syst)±0.37(model) fb. The observed significance of the signal is 6.2 standard deviations above the background-only hypothesis.

Original language	English
Article number	091803
Journal	Physical Review Letters
Volume	131
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevLett.131.091803
State	Published - 1 Sep 2023

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10.1103/PhysRevLett.131.091803

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@article{1dae369aecd94e7ea6d8e4a0475f189c,

title = "Observation of Same-Sign WW Production from Double Parton Scattering in Proton-Proton Collisions at sqrt[s]=13 TeV",

abstract = "The first observation of the production of W\textasciicircum{}\{±\}W\textasciicircum{}\{±\} bosons from double parton scattering processes using same-sign electron-muon and dimuon events in proton-proton collisions is reported. The data sample corresponds to an integrated luminosity of 138 fb\textasciicircum{}\{-1\} recorded at a center-of-mass energy of 13 TeV using the CMS detector at the CERN LHC. Multivariate discriminants are used to distinguish the signal process from the main backgrounds. A binned maximum likelihood fit is performed to extract the signal cross section. The measured cross section for production of same-sign W bosons decaying leptonically is 80.7±11.2(stat) \_\{-8.6\}\textasciicircum{}\{+9.5\}(syst)±12.1(model) fb, whereas the measured fiducial cross section is 6.28±0.81(stat)±0.69(syst)±0.37(model) fb. The observed significance of the signal is 6.2 standard deviations above the background-only hypothesis.",

author = "\{CMS Collaboration\} and A. Tumasyan and W. Adam and Andrejkovic, \{J. W.\} and T. Bergauer and S. Chatterjee and K. Damanakis and M. Dragicevic and \{Escalante Del Valle\}, A. and Hussain, \{P. S.\} and M. Jeitler and N. Krammer and L. Lechner and D. Liko and I. Mikulec and P. Paulitsch and Pitters, \{F. M.\} and J. Schieck and R. Sch{\"o}fbeck and D. Schwarz and S. Templ and W. Waltenberger and Wulz, \{C. E.\} and Darwish, \{M. R.\} and T. Janssen and T. Kello and \{Rejeb Sfar\}, H. and \{Van Mechelen\}, P. and Bols, \{E. S.\} and J. D{\textquoteright}Hondt and \{De Moor\}, A. and M. Delcourt and \{El Faham\}, H. and S. Lowette and S. Moortgat and A. Morton and D. M{\"u}ller and Sahasransu, \{A. R.\} and S. Tavernier and \{Van Doninck\}, W. and D. Vannerom and B. Clerbaux and \{De Lentdecker\}, G. and L. Favart and D. Hohov and J. Jaramillo and K. Lee and M. Mahdavikhorrami and I. Makarenko and A. Malara and \{Carrera Jarrin\}, E.",

note = "Publisher Copyright: {\textcopyright} 2023 CERN, for the CMS Collaboration.",

year = "2023",

month = sep,

day = "1",

doi = "10.1103/PhysRevLett.131.091803",

language = "Ingl{\'e}s",

volume = "131",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "9",

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TY - JOUR

T1 - Observation of Same-Sign WW Production from Double Parton Scattering in Proton-Proton Collisions at sqrt[s]=13 TeV

AU - CMS Collaboration

AU - Tumasyan, A.

AU - Adam, W.

AU - Andrejkovic, J. W.

AU - Bergauer, T.

AU - Chatterjee, S.

AU - Damanakis, K.

AU - Dragicevic, M.

AU - Escalante Del Valle, A.

AU - Hussain, P. S.

AU - Jeitler, M.

AU - Krammer, N.

AU - Lechner, L.

AU - Liko, D.

AU - Mikulec, I.

AU - Paulitsch, P.

AU - Pitters, F. M.

AU - Schieck, J.

AU - Schöfbeck, R.

AU - Schwarz, D.

AU - Templ, S.

AU - Waltenberger, W.

AU - Wulz, C. E.

AU - Darwish, M. R.

AU - Janssen, T.

AU - Kello, T.

AU - Rejeb Sfar, H.

AU - Van Mechelen, P.

AU - Bols, E. S.

AU - D’Hondt, J.

AU - De Moor, A.

AU - Delcourt, M.

AU - El Faham, H.

AU - Lowette, S.

AU - Moortgat, S.

AU - Morton, A.

AU - Müller, D.

AU - Sahasransu, A. R.

AU - Tavernier, S.

AU - Van Doninck, W.

AU - Vannerom, D.

AU - Clerbaux, B.

AU - De Lentdecker, G.

AU - Favart, L.

AU - Hohov, D.

AU - Jaramillo, J.

AU - Lee, K.

AU - Mahdavikhorrami, M.

AU - Makarenko, I.

AU - Malara, A.

AU - Carrera Jarrin, E.

PY - 2023/9/1

Y1 - 2023/9/1

N2 - The first observation of the production of W^{±}W^{±} bosons from double parton scattering processes using same-sign electron-muon and dimuon events in proton-proton collisions is reported. The data sample corresponds to an integrated luminosity of 138 fb^{-1} recorded at a center-of-mass energy of 13 TeV using the CMS detector at the CERN LHC. Multivariate discriminants are used to distinguish the signal process from the main backgrounds. A binned maximum likelihood fit is performed to extract the signal cross section. The measured cross section for production of same-sign W bosons decaying leptonically is 80.7±11.2(stat) _{-8.6}^{+9.5}(syst)±12.1(model) fb, whereas the measured fiducial cross section is 6.28±0.81(stat)±0.69(syst)±0.37(model) fb. The observed significance of the signal is 6.2 standard deviations above the background-only hypothesis.

AB - The first observation of the production of W^{±}W^{±} bosons from double parton scattering processes using same-sign electron-muon and dimuon events in proton-proton collisions is reported. The data sample corresponds to an integrated luminosity of 138 fb^{-1} recorded at a center-of-mass energy of 13 TeV using the CMS detector at the CERN LHC. Multivariate discriminants are used to distinguish the signal process from the main backgrounds. A binned maximum likelihood fit is performed to extract the signal cross section. The measured cross section for production of same-sign W bosons decaying leptonically is 80.7±11.2(stat) _{-8.6}^{+9.5}(syst)±12.1(model) fb, whereas the measured fiducial cross section is 6.28±0.81(stat)±0.69(syst)±0.37(model) fb. The observed significance of the signal is 6.2 standard deviations above the background-only hypothesis.

UR - https://www.scopus.com/pages/publications/85171697215

U2 - 10.1103/PhysRevLett.131.091803

DO - 10.1103/PhysRevLett.131.091803

M3 - Artículo

C2 - 37721845

AN - SCOPUS:85171697215

SN - 0031-9007

VL - 131

JO - Physical Review Letters

JF - Physical Review Letters

IS - 9

M1 - 091803

ER -

Observation of Same-Sign WW Production from Double Parton Scattering in Proton-Proton Collisions at sqrt[s]=13 TeV

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