Evidence for tWZ production in proton-proton collisions at s=13 TeV in multilepton final states

The CMS collaboration

doi:10.1016/j.physletb.2024.138815

Evidence for tWZ production in proton-proton collisions at s=13 TeV in multilepton final states

The CMS collaboration

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Resumen

The first evidence for the standard model production of a top quark in association with a W boson and a Z boson is reported. The measurement is performed in multilepton final states, where the Z boson is reconstructed via its decays to electron or muon pairs. At least one W boson, associated or from top quark decay, decays leptonically, too. The analysed data were recorded by the CMS experiment at the CERN LHC in 2016–2018 in proton-proton collisions at s=13 TeV, and correspond to an integrated luminosity of 138 fb⁻¹. The measured cross section is 354±54(stat)±95(syst) fb, and corresponds to a statistical significance of 3.4 standard deviations.

Idioma original	Inglés
Número de artículo	138815
Publicación	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volumen	855
DOI	https://doi.org/10.1016/j.physletb.2024.138815
Estado	Publicada - ago. 2024
Publicado de forma externa	Sí

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@article{dfb7aa31c94b40c98893f75966cb452c,

title = "Evidence for tWZ production in proton-proton collisions at s=13 TeV in multilepton final states",

abstract = "The first evidence for the standard model production of a top quark in association with a W boson and a Z boson is reported. The measurement is performed in multilepton final states, where the Z boson is reconstructed via its decays to electron or muon pairs. At least one W boson, associated or from top quark decay, decays leptonically, too. The analysed data were recorded by the CMS experiment at the CERN LHC in 2016–2018 in proton-proton collisions at s=13 TeV, and correspond to an integrated luminosity of 138 fb−1. The measured cross section is 354±54(stat)±95(syst) fb, and corresponds to a statistical significance of 3.4 standard deviations.",

keywords = "CMS, Machine learning, Multilepton, Single top quark, Z boson",

author = "\{The CMS collaboration\} and A. Hayrapetyan 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 D. Liko and I. Mikulec and J. Schieck and R. Sch{\"o}fbeck and D. Schwarz and M. Sonawane and S. Templ and W. Waltenberger and Wulz, \{C. E.\} and Darwish, \{M. R.\} and T. Janssen and \{Van Mechelen\}, P. and Bols, \{E. S.\} and J. D{\textquoteright}Hondt and S. Dansana and \{De Moor\}, A. and M. Delcourt and \{El Faham\}, H. and S. Lowette and I. Makarenko and D. M{\"u}ller and Sahasransu, \{A. R.\} and S. Tavernier and M. Tytgat and \{Van Putte\}, S. and D. Vannerom and B. Clerbaux and \{De Lentdecker\}, G. and L. Favart and D. Hohov and J. Jaramillo and A. Khalilzadeh and K. Lee and M. Mahdavikhorrami and A. Malara and S. Paredes and L. P{\'e}tr{\'e} and N. Postiau",

note = "Publisher Copyright: {\textcopyright} 2024 The Author(s)",

year = "2024",

month = aug,

doi = "10.1016/j.physletb.2024.138815",

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

volume = "855",

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

issn = "0370-2693",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Evidence for tWZ production in proton-proton collisions at s=13 TeV in multilepton final states

AU - The CMS collaboration

AU - Hayrapetyan, A.

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 - Liko, D.

AU - Mikulec, I.

AU - Schieck, J.

AU - Schöfbeck, R.

AU - Schwarz, D.

AU - Sonawane, M.

AU - Templ, S.

AU - Waltenberger, W.

AU - Wulz, C. E.

AU - Darwish, M. R.

AU - Janssen, T.

AU - Van Mechelen, P.

AU - Bols, E. S.

AU - D’Hondt, J.

AU - Dansana, S.

AU - De Moor, A.

AU - Delcourt, M.

AU - El Faham, H.

AU - Lowette, S.

AU - Makarenko, I.

AU - Müller, D.

AU - Sahasransu, A. R.

AU - Tavernier, S.

AU - Tytgat, M.

AU - Van Putte, S.

AU - Vannerom, D.

AU - Clerbaux, B.

AU - De Lentdecker, G.

AU - Favart, L.

AU - Hohov, D.

AU - Jaramillo, J.

AU - Khalilzadeh, A.

AU - Lee, K.

AU - Mahdavikhorrami, M.

AU - Malara, A.

AU - Paredes, S.

AU - Pétré, L.

AU - Postiau, N.

PY - 2024/8

Y1 - 2024/8

N2 - The first evidence for the standard model production of a top quark in association with a W boson and a Z boson is reported. The measurement is performed in multilepton final states, where the Z boson is reconstructed via its decays to electron or muon pairs. At least one W boson, associated or from top quark decay, decays leptonically, too. The analysed data were recorded by the CMS experiment at the CERN LHC in 2016–2018 in proton-proton collisions at s=13 TeV, and correspond to an integrated luminosity of 138 fb−1. The measured cross section is 354±54(stat)±95(syst) fb, and corresponds to a statistical significance of 3.4 standard deviations.

AB - The first evidence for the standard model production of a top quark in association with a W boson and a Z boson is reported. The measurement is performed in multilepton final states, where the Z boson is reconstructed via its decays to electron or muon pairs. At least one W boson, associated or from top quark decay, decays leptonically, too. The analysed data were recorded by the CMS experiment at the CERN LHC in 2016–2018 in proton-proton collisions at s=13 TeV, and correspond to an integrated luminosity of 138 fb−1. The measured cross section is 354±54(stat)±95(syst) fb, and corresponds to a statistical significance of 3.4 standard deviations.

KW - CMS

KW - Machine learning

KW - Multilepton

KW - Single top quark

KW - Z boson

UR - https://www.scopus.com/pages/publications/85197576932

U2 - 10.1016/j.physletb.2024.138815

DO - 10.1016/j.physletb.2024.138815

M3 - Artículo

AN - SCOPUS:85197576932

SN - 0370-2693

VL - 855

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

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

M1 - 138815

ER -

Evidence for tWZ production in proton-proton collisions at s=13 TeV in multilepton final states

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