Artículo
Search for an invisibly decaying Higgs boson or dark matter candidates produced in association with a Z boson in pp collisions at s√= 13 TeV with the ATLAS detector
Aaboud, M.; Aad, G.; Abbott, B.; Abdinov, O.; Abeloos, B.; Alconada Verzini, María Josefina
; Alonso, Francisco
; Arduh, Francisco Anuar
; Dova, Maria Teresa
; Monticelli, Fernando Gabriel
; Wahlberg, Hernan Pablo
; Otero y Garzon, Gustavo Javier
; Piegaia, Ricardo Nestor
; Bossio Sola, Jonathan David
; Daneri, María Florencia
; Devesa, Maria Roberta
; Marceca, Gino
; Sacerdoti, Sabrina
; Zimine, N. I.; Zimmermann, C.; Zimmermann, S.; Zinonos, Z.; Zinser, M.; Ziolkowski, M.; Živković, L.; Zobernig, G.; Zoccoli, A.; Zou, R.; Nedden, M. zur; Zwalinski, L.; The ATLAS Collaboration
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Fecha de publicación:
12/2017
Editorial:
Elsevier Science
Revista:
Physics Letters B
ISSN:
0370-2693
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
A search for an invisibly decaying Higgs boson or dark matter candidates produced in association with a leptonically decaying Z boson in proton--proton collisions at s√= 13 TeV is presented. This search uses 36.1 fb−1 of data collected by the ATLAS experiment at the Large Hadron Collider. No significant deviation from the expectation of the Standard Model backgrounds is observed. Assuming the Standard Model ZH production cross-section, an observed (expected) upper limit of 67% (39%) at the 95% confidence level is set on the branching ratio of invisible decays of the Higgs boson with mass mH= 125 GeV. The corresponding limits on the production cross-section of the ZH process with the invisible Higgs boson decays are also presented. Furthermore, exclusion limits on the dark matter candidate and mediator masses are reported in the framework of simplified dark matter models.
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Articulos de INST.DE FISICA LA PLATA
Articulos de INST.DE FISICA LA PLATA
Citación
Aaboud, M.; Aad, G.; Abbott, B.; Abdinov, O.; Abeloos, B.; et al.; Search for an invisibly decaying Higgs boson or dark matter candidates produced in association with a Z boson in pp collisions at s√= 13 TeV with the ATLAS detector; Elsevier Science; Physics Letters B; 776; 12-2017; 318-337
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