Evidence for WW production from double-parton interactions in proton–proton collisions at √s=13TeV

doi:10.1140/epjc/s10052-019-7541-6

Evidence for WW production from double-parton interactions in proton–proton collisions at √s=13TeV

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Abstract

A search for WW production from double-parton scattering processes using same-charge electron-muon and dimuon events is reported, based on proton-proton collision data collected at a center-of-mass energy of 13TeV. The analyzed data set corresponds to an integrated luminosity of 77.4fb-1, collected using the CMS detector at the LHC in 2016 and 2017. Multivariate classifiers are used to discriminate between the signal and the dominant background processes. A maximum likelihood fit is performed to extract the signal cross section. This leads to the first evidence for WW production via double-parton scattering, with a significance of 3.9 standard deviations. The measured inclusive cross section is 1.41±0.28(stat)±0.28(syst)pb.

Original language	English
Article number	41
Journal	European Physical Journal C
Volume	80
Issue number	1
DOIs	https://doi.org/10.1140/epjc/s10052-019-7541-6
State	Published - 1 Jan 2020
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2020, CERN for the benefit of the CMS collaboration.

Keywords

CMS
Physics
WW production

ASJC Scopus subject areas

Engineering (miscellaneous)
Physics and Astronomy (miscellaneous)

Access to Document

10.1140/epjc/s10052-019-7541-6

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@article{7809283548da4d49a2286a60f28e667d,

title = "Evidence for WW production from double-parton interactions in proton–proton collisions at √s=13TeV",

abstract = "A search for WW production from double-parton scattering processes using same-charge electron-muon and dimuon events is reported, based on proton-proton collision data collected at a center-of-mass energy of 13TeV. The analyzed data set corresponds to an integrated luminosity of 77.4fb-1, collected using the CMS detector at the LHC in 2016 and 2017. Multivariate classifiers are used to discriminate between the signal and the dominant background processes. A maximum likelihood fit is performed to extract the signal cross section. This leads to the first evidence for WW production via double-parton scattering, with a significance of 3.9 standard deviations. The measured inclusive cross section is 1.41±0.28(stat)±0.28(syst)pb.",

keywords = "CMS, Physics, WW production",

author = "Sirunyan, \{A. M.\} and A. Tumasyan and W. Adam and F. Ambrogi and T. Bergauer and J. Brandstetter and M. Dragicevic and J. Er{\~A}¶ and \{Escalante Del Valle\}, A. and M. Flechl and R. Fr{\~A}¼hwirth and M. Jeitler and N. Krammer and I. Kr{\~A}¤tschmer and D. Liko and T. Madlener and I. Mikulec and N. Rad and J. Schieck and R. Sch{\~A}¶fbeck and M. Spanring and D. Spitzbart and W. Waltenberger and Wulz, \{C. E.\} and M. Zarucki and V. Drugakov and V. Mossolov and \{Suarez Gonzalez\}, J. and Darwish, \{M. R.\} and \{De Wolf\}, \{E. A.\} and \{Di Croce\}, D. and X. Janssen and J. Lauwers and A. Lelek and M. Pieters and \{Rejeb Sfar\}, H. and \{Van Haevermaet\}, H. and \{Van Mechelen\}, P. and \{Van Putte\}, S. and \{Van Remortel\}, N. and F. Blekman and Bols, \{E. S.\} and Chhibra, \{S. S.\} and J. D{\^a}€{\texttrademark}hondt and \{De Clercq\}, J. and D. Lontkovskyi and S. Lowette and I. Marchesini and S. Moortgat and M. Ruspa",

note = "Publisher Copyright: {\textcopyright} 2020, CERN for the benefit of the CMS collaboration.",

year = "2020",

month = jan,

day = "1",

doi = "10.1140/epjc/s10052-019-7541-6",

language = "English",

volume = "80",

journal = "European Physical Journal C",

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T1 - Evidence for WW production from double-parton interactions in proton–proton collisions at √s=13TeV

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Ambrogi, F.

AU - Bergauer, T.

AU - Brandstetter, J.

AU - Dragicevic, M.

AU - ErÃ¶, J.

AU - Escalante Del Valle, A.

AU - Flechl, M.

AU - FrÃ¼hwirth, R.

AU - Jeitler, M.

AU - Krammer, N.

AU - KrÃ¤tschmer, I.

AU - Liko, D.

AU - Madlener, T.

AU - Mikulec, I.

AU - Rad, N.

AU - Schieck, J.

AU - SchÃ¶fbeck, R.

AU - Spanring, M.

AU - Spitzbart, D.

AU - Waltenberger, W.

AU - Wulz, C. E.

AU - Zarucki, M.

AU - Drugakov, V.

AU - Mossolov, V.

AU - Suarez Gonzalez, J.

AU - Darwish, M. R.

AU - De Wolf, E. A.

AU - Di Croce, D.

AU - Janssen, X.

AU - Lauwers, J.

AU - Lelek, A.

AU - Pieters, M.

AU - Rejeb Sfar, H.

AU - Van Haevermaet, H.

AU - Van Mechelen, P.

AU - Van Putte, S.

AU - Van Remortel, N.

AU - Blekman, F.

AU - Bols, E. S.

AU - Chhibra, S. S.

AU - Dâ€™hondt, J.

AU - De Clercq, J.

AU - Lontkovskyi, D.

AU - Lowette, S.

AU - Marchesini, I.

AU - Moortgat, S.

AU - Ruspa, M.

PY - 2020/1/1

Y1 - 2020/1/1

N2 - A search for WW production from double-parton scattering processes using same-charge electron-muon and dimuon events is reported, based on proton-proton collision data collected at a center-of-mass energy of 13TeV. The analyzed data set corresponds to an integrated luminosity of 77.4fb-1, collected using the CMS detector at the LHC in 2016 and 2017. Multivariate classifiers are used to discriminate between the signal and the dominant background processes. A maximum likelihood fit is performed to extract the signal cross section. This leads to the first evidence for WW production via double-parton scattering, with a significance of 3.9 standard deviations. The measured inclusive cross section is 1.41±0.28(stat)±0.28(syst)pb.

AB - A search for WW production from double-parton scattering processes using same-charge electron-muon and dimuon events is reported, based on proton-proton collision data collected at a center-of-mass energy of 13TeV. The analyzed data set corresponds to an integrated luminosity of 77.4fb-1, collected using the CMS detector at the LHC in 2016 and 2017. Multivariate classifiers are used to discriminate between the signal and the dominant background processes. A maximum likelihood fit is performed to extract the signal cross section. This leads to the first evidence for WW production via double-parton scattering, with a significance of 3.9 standard deviations. The measured inclusive cross section is 1.41±0.28(stat)±0.28(syst)pb.

KW - CMS

KW - Physics

KW - WW production

UR - https://www.scopus.com/pages/publications/85078224899

U2 - 10.1140/epjc/s10052-019-7541-6

DO - 10.1140/epjc/s10052-019-7541-6

M3 - Article

AN - SCOPUS:85078224899

SN - 1434-6044

VL - 80

JO - European Physical Journal C

JF - European Physical Journal C

IS - 1

M1 - 41

ER -

Evidence for WW production from double-parton interactions in proton–proton collisions at √s=13TeV

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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