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Authors

Publications

Search for associated production of dark matter with a Higgs boson decaying to b(b)over-bar or gamma gamma at root s=13 TeV

Sirunyan, A. M.; Adžić, Petar; Ćirković, Predrag; Devetak, Damir; Đorđević, Miloš; Milošević, Jovan; Rekovic, V.; Milenović, Predrag

(2017)

TY  - JOUR
AU  - Sirunyan, A. M.
AU  - Adžić, Petar
AU  - Ćirković, Predrag
AU  - Devetak, Damir
AU  - Đorđević, Miloš
AU  - Milošević, Jovan
AU  - Rekovic, V.
AU  - Milenović, Predrag
PY  - 2017
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1814
AB  - A search for dark matter is performed looking for events with large missing transverse momentum and a Higgs boson decaying either to a pair of bottom quarks or to a pair of photons. The data from proton-proton collisions at a center-of-mass energy of 13TeV, collected in 2015 with the CMS detector at the LHC, correspond to an integrated luminosity of 2.3 fb(-1). Results are interpreted in the context of a Z-two-Higgs-doublet model, where the gauge symmetry of the standard model is extended by a U(1) Z group, with a new massive Z gauge boson, and the Higgs sector is extended with four additional Higgs bosons. In this model, a high-mass resonance Z decays into a pseudoscalar boson A and a light SM-like scalar Higgs boson, and the A decays to a pair of dark matter particles. No signi fi cant excesses are observed over the background prediction. Combining results from the two decay channels yields exclusion limits in the signal cross section in the m(Z)-m(A) phase space. For example, the observed data exclude the Z mass range from 600 to 1860 GeV, for Z coupling strength gZ = 0: 8, the coupling of A with dark matter particles g(X) = 1, the ratio of the vacuum expectation values tan beta = 1, and m(A) = 300GeV. The results of this analysis are valid for any dark matter particle mass below 100 GeV.
T2  - Journal of High Energy Physics
T1  - Search for associated production of dark matter with a Higgs boson decaying to b(b)over-bar or gamma gamma at root s=13 TeV
IS  - 10
DO  - 10.1007/JHEP10(2017)180
ER  - 
@article{
author = "Sirunyan, A. M. and Adžić, Petar and Ćirković, Predrag and Devetak, Damir and Đorđević, Miloš and Milošević, Jovan and Rekovic, V. and Milenović, Predrag",
year = "2017",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1814",
abstract = "A search for dark matter is performed looking for events with large missing transverse momentum and a Higgs boson decaying either to a pair of bottom quarks or to a pair of photons. The data from proton-proton collisions at a center-of-mass energy of 13TeV, collected in 2015 with the CMS detector at the LHC, correspond to an integrated luminosity of 2.3 fb(-1). Results are interpreted in the context of a Z-two-Higgs-doublet model, where the gauge symmetry of the standard model is extended by a U(1) Z group, with a new massive Z gauge boson, and the Higgs sector is extended with four additional Higgs bosons. In this model, a high-mass resonance Z decays into a pseudoscalar boson A and a light SM-like scalar Higgs boson, and the A decays to a pair of dark matter particles. No signi fi cant excesses are observed over the background prediction. Combining results from the two decay channels yields exclusion limits in the signal cross section in the m(Z)-m(A) phase space. For example, the observed data exclude the Z mass range from 600 to 1860 GeV, for Z coupling strength gZ = 0: 8, the coupling of A with dark matter particles g(X) = 1, the ratio of the vacuum expectation values tan beta = 1, and m(A) = 300GeV. The results of this analysis are valid for any dark matter particle mass below 100 GeV.",
journal = "Journal of High Energy Physics",
title = "Search for associated production of dark matter with a Higgs boson decaying to b(b)over-bar or gamma gamma at root s=13 TeV",
number = "10",
doi = "10.1007/JHEP10(2017)180"
}
Sirunyan, A. M., Adžić, P., Ćirković, P., Devetak, D., Đorđević, M., Milošević, J., Rekovic, V.,& Milenović, P. (2017). Search for associated production of dark matter with a Higgs boson decaying to b(b)over-bar or gamma gamma at root s=13 TeV.
Journal of High Energy Physics(10).
https://doi.org/10.1007/JHEP10(2017)180
Sirunyan AM, Adžić P, Ćirković P, Devetak D, Đorđević M, Milošević J, Rekovic V, Milenović P. Search for associated production of dark matter with a Higgs boson decaying to b(b)over-bar or gamma gamma at root s=13 TeV. Journal of High Energy Physics. 2017;(10)
Sirunyan A. M., Adžić Petar, Ćirković Predrag, Devetak Damir, Đorđević Miloš, Milošević Jovan, Rekovic V., Milenović Predrag, "Search for associated production of dark matter with a Higgs boson decaying to b(b)over-bar or gamma gamma at root s=13 TeV" Journal of High Energy Physics, no. 10 (2017),
https://doi.org/10.1007/JHEP10(2017)180 .
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