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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.

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Search for production of four top quarks in final states with same-sign or multiple leptons in proton?proton collisions at ?s=13TeV - Artículo de Revista
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Fuente: Eur. Phys. J. C 80, 41 (2020).

Editorial: Springer New York LLC

Fecha de publicación: 01/01/2020

Nº de páginas: 26

Tipo de publicación: Artículo de Revista

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

ISSN: 1434-6044,1434-6052

Url de la publicación: https://doi.org/10.1140/epjc/s10052-019-7541-6

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Autoría

SIRUNYAN, A. M.

JOSE IBAN CABRILLO BARTOLOME

ALICIA CALDERON TAZON

BARBARA CHAZIN QUERO

JORGE DUARTE CAMPDERROS

MARCOS FERNANDEZ GARCIA

PEDRO JOSE FERNANDEZ MANTECA

ANDREA GARCIA ALONSO

GERVASIO GOMEZ GRAMUGLIO

CELSO MARTINEZ RIVERO

PABLO MARTINEZ RUIZ DEL ARBOL

FRANCISCO MATORRAS WEINIG

JONATAN PIEDRA GOMEZ

CEDRIC GERALD PRIEELS

MARIA TERESA RODRIGO ANORO

ALBERTO RUIZ JIMENO

LORENZO RUSSO

LUCA SCODELLARO

NICOLO TREVISANI

IVAN VILA ALVAREZ

JESUS MANUEL VIZAN GARCIA

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