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Search for dark matter produced in association with a Higgs boson decaying to γγ or τ +τ − at s√=13 TeV (CROSBI ID 267096)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

(CMS Collaboration) Sirunyan, Albert ; ... ; Đurić, Senka ; Lelas, Damir ; Godinović, Nikola ; Puljak, Ivica ; Šćulac, Toni ; Mesić, Benjamin ; Šuša, Tatjana ; Kovač, Marko et al. Search for dark matter produced in association with a Higgs boson decaying to γγ or τ +τ − at s√=13 TeV // The Journal of high energy physics, 9 (2018), 46, 47. doi: 10.1007/JHEP09(2018)046

Podaci o odgovornosti

Sirunyan, Albert ; ... ; Đurić, Senka ; Lelas, Damir ; Godinović, Nikola ; Puljak, Ivica ; Šćulac, Toni ; Mesić, Benjamin ; Šuša, Tatjana ; Kovač, Marko ; Ferenček, Dinko ; Antunović, Željko ; Starodumov, Andrey ; Brigljević, Vuko ; Luetić, Jelena ; Kadija, Krešo ; ... ; Woods, Nate

CMS Collaboration

engleski

Search for dark matter produced in association with a Higgs boson decaying to γγ or τ +τ − at s√=13 TeV

A search for dark matter particles is performed by looking for events with large transverse momentum imbalance and a recoiling Higgs boson decaying to either a pair of photons or a pair of τ leptons. The search is based on proton-proton collision data at a center-of-mass energy of 13 TeV collected at the CERN LHC in 2016 and corresponding to an integrated luminosity of 35.9 fb−1. No significant excess over the expected standard model background is observed. Upper limits at 95% confidence level are presented for the product of the production cross section and branching fraction in the context of two benchmark simplified models. For the Z′-two-Higgs-doublet model (where Z′ is a new massive boson mediator) with an intermediate heavy pseudoscalar particle of mass mA = 300 GeV and mDM = 100 GeV, the Z′ masses from 550 GeV to 1265 GeV are excluded. For a baryonic Z′ model, with mDM = 1 GeV, Z′ masses up to 615 GeV are excluded. Results are also presented for the spin-independent cross section for the dark matter-nucleon interaction as a function of the mass of the dark matter particle. This is the first search for dark matter particles produced in association with a Higgs boson decaying to two τ leptons.

high energy physics ; experimental particle physics ; LHC ; CMS ; standard model

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Podaci o izdanju

9

2018.

46

47

objavljeno

1126-6708

1029-8479

10.1007/JHEP09(2018)046

Povezanost rada

Fizika

Poveznice
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