Search for charged Higgs bosons decaying to W±W± or W±Z in 139 fb-1 of √s=13 TeV pp collisions with the ATLAS detector

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作者：
Trandafir, Iulia-Stefania [1 ,2 ]
机构：
[1] Horia Hulubei Natl Inst Phys & Nucl Engn, Str Reactorului 30, Magurele, Romania
[2] Univ Bucharest, Fac Phys, Str Atomistilor 405, Magurele, Romania
来源：
NINTH ANNUAL CONFERENCE ON LARGE HADRON COLLIDER PHYSICS, LHCP2021 | 2021年
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中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
This document presents a search for charged Higgs bosons decaying into WW or WZ bosons, involving experimental signatures with two, three and four leptons with a variety of charge combinations, missing transverse momentum and jets. We are using a data sample of proton-proton collisions at centre-of-mass energy of 13 TeV measured with the ATLAS detector between 2015 and 2018. The total integrated luminosity fot this data is 139 fb(-1). The search is guided by a type-II seesaw model that extends the scalar sector of the Standard Model with a scalar triplet, leading to a phenomenology that includes doubly and singly charged Higgs bosons. Two scenarios are explored, corresponding to the pair production of doubly charged H bosons, or the associated production of a doubly charged H boson and a singly charged H boson. No significant deviations from the Standard Model predictions are observed. H-+/-+/- bosons are excluded at 95% confidence level up to 350 GeV and 230 GeV for the pair and associated production modes, respectively [1]. The results of this search have been published here.
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