A search for dark matter produced in association with a Higgs boson in final states with two hadronically decaying τ-leptons and missing transverse momentum is presented. The analysis uses 139fb−1 of proton-proton collision data at √s = 13TeV collected by the ATLAS experiment at the Large Hadron Collider between 2015 and 2018. No evidence of physics beyond the Standard Model is found. The results are interpreted in terms of a 2HDM+a model featuring two scalar Higgs doublets and a pseudoscalar singlet f ield. Exclusion limits on the parameters of the model in selected benchmark scenarios are derived at 95% confidence level. Model-independent limits are also set on the visible cross section for processes beyond the Standard Model producing missing transverse momentum in association with a Higgs boson decaying into τ-leptons.

Aad, G., Aakvaag, E., Abbott, B., Abeling, K., Abidi, S.h., Aboulhorma, A., et al. (2023). Search for dark matter produced in association with a Higgs boson decaying to tau leptons at root s = 13 TeV with the ATLAS detector. JOURNAL OF HIGH ENERGY PHYSICS, 2023(9) [10.1007/jhep09(2023)189].

Search for dark matter produced in association with a Higgs boson decaying to tau leptons at root s = 13 TeV with the ATLAS detector

G. Aielli;P. Camarri;L. Cerrito;U. De Sanctis;A. Di Ciaccio;F. Giuli;
2023-01-01

Abstract

A search for dark matter produced in association with a Higgs boson in final states with two hadronically decaying τ-leptons and missing transverse momentum is presented. The analysis uses 139fb−1 of proton-proton collision data at √s = 13TeV collected by the ATLAS experiment at the Large Hadron Collider between 2015 and 2018. No evidence of physics beyond the Standard Model is found. The results are interpreted in terms of a 2HDM+a model featuring two scalar Higgs doublets and a pseudoscalar singlet f ield. Exclusion limits on the parameters of the model in selected benchmark scenarios are derived at 95% confidence level. Model-independent limits are also set on the visible cross section for processes beyond the Standard Model producing missing transverse momentum in association with a Higgs boson decaying into τ-leptons.
2023
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/01
Settore PHYS-01/A - Fisica sperimentale delle interazioni fondamentali e applicazioni
English
Con Impact Factor ISI
Hadron-Hadron Scattering
Aad, G., Aakvaag, E., Abbott, B., Abeling, K., Abidi, S.h., Aboulhorma, A., et al. (2023). Search for dark matter produced in association with a Higgs boson decaying to tau leptons at root s = 13 TeV with the ATLAS detector. JOURNAL OF HIGH ENERGY PHYSICS, 2023(9) [10.1007/jhep09(2023)189].
Aad, G; Aakvaag, E; Abbott, B; Abeling, K; Abidi, Sh; Aboulhorma, A; Abramowicz, H; Abreu, H; Abulaiti, Y; Abusleme Hoffman, Ac; Acharya, Bs; Adam Bou...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/342128
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