Search for direct production of electroweakinos in final states with one lepton, missing transverse momentum and a Higgs boson decaying into two b-jets in pp collisions at √s=13 TeV with the ATLAS detector

The results of a search for electroweakino pair production pp → ˜χ± 1 χ˜ 0 2 in which the chargino (χ˜ ± 1) decays into a W boson and the lightest neutralino (χ˜ 0 1), while the heavier neutralino (χ˜ 0 2 ) decays into the Standard Model 125 GeV Higgs boson and a second χ˜ 0 1 are presented. The sig...

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Autores principales: Alonso, Francisco, Arduh, Francisco Anuar, Dova, María Teresa, Hoya, Joaquín, Monticelli, Fernando Gabriel, Orellana, Gonzalo Enrique, Wahlberg, Hernán Pablo, ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2020
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/123405
Aporte de:
id I19-R120-10915-123405
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Electroweakinos
Lepton
Higgs boson
spellingShingle Física
Electroweakinos
Lepton
Higgs boson
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Orellana, Gonzalo Enrique
Wahlberg, Hernán Pablo
ATLAS Collaboration
Search for direct production of electroweakinos in final states with one lepton, missing transverse momentum and a Higgs boson decaying into two b-jets in pp collisions at √s=13 TeV with the ATLAS detector
topic_facet Física
Electroweakinos
Lepton
Higgs boson
description The results of a search for electroweakino pair production pp → ˜χ± 1 χ˜ 0 2 in which the chargino (χ˜ ± 1) decays into a W boson and the lightest neutralino (χ˜ 0 1), while the heavier neutralino (χ˜ 0 2 ) decays into the Standard Model 125 GeV Higgs boson and a second χ˜ 0 1 are presented. The signal selection requires a pair of b-tagged jets consistent with those from a Higgs boson decay, and either an electron or a muon from the W boson decay, together with missing transverse momentum from the corresponding neutrino and the stable neutralinos. The analysis is based on data corresponding to 139 fb−1 of √s = 13 TeV pp collisions provided by the Large Hadron Collider and recorded by the ATLAS detector. No statistically significant evidence of an excess of events above the Standard Model expectation is found. Limits are set on the direct production of the electroweakinos in simplified models, assuming pure wino cross-sections. Masses of χ˜ ± 1 /χ˜ 0 2 up to 740 GeV are excluded at 95% confidence level for a massless χ˜ 0 1 .
format Articulo
Articulo
author Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Orellana, Gonzalo Enrique
Wahlberg, Hernán Pablo
ATLAS Collaboration
author_facet Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Orellana, Gonzalo Enrique
Wahlberg, Hernán Pablo
ATLAS Collaboration
author_sort Alonso, Francisco
title Search for direct production of electroweakinos in final states with one lepton, missing transverse momentum and a Higgs boson decaying into two b-jets in pp collisions at √s=13 TeV with the ATLAS detector
title_short Search for direct production of electroweakinos in final states with one lepton, missing transverse momentum and a Higgs boson decaying into two b-jets in pp collisions at √s=13 TeV with the ATLAS detector
title_full Search for direct production of electroweakinos in final states with one lepton, missing transverse momentum and a Higgs boson decaying into two b-jets in pp collisions at √s=13 TeV with the ATLAS detector
title_fullStr Search for direct production of electroweakinos in final states with one lepton, missing transverse momentum and a Higgs boson decaying into two b-jets in pp collisions at √s=13 TeV with the ATLAS detector
title_full_unstemmed Search for direct production of electroweakinos in final states with one lepton, missing transverse momentum and a Higgs boson decaying into two b-jets in pp collisions at √s=13 TeV with the ATLAS detector
title_sort search for direct production of electroweakinos in final states with one lepton, missing transverse momentum and a higgs boson decaying into two b-jets in pp collisions at √s=13 tev with the atlas detector
publishDate 2020
url http://sedici.unlp.edu.ar/handle/10915/123405
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