Search for a Higgs boson decaying into gamma*gamma - GT ll gamma with low dilepton mass in pp collisions at root s=8 TeV
2016
Преузимање 🢃
Аутори
Khachatryan, V.Adžić, Petar
Ekmedžić, Marko
Milošević, Jovan
Reković, Vladimir
Đorđević, Miloš
Milenović, Predrag
Остала ауторства
CMS CollaborationCMS Collaboration (ukupan broj autora: 2306)
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
A search is described for a Higgs boson decaying into two photons, one of which has an internal conversion to a muon or an electron pair (ll gamma). The analysis is performed using proton-proton collision data recorded with the CMS detector at the LHC at a centre-of-mass energy of 8TeV, corresponding to an integrated luminosity of 19.7 fb(-1). The events selected have an opposite-sign muon or electron pair and a high transverse momentum photon. No excess above background has been found in the three-body invariant mass range 120 LT m(ll gamma) LT 150 GeV, and limits have been derived for the Higgs boson production cross section times branching fraction for the decay H - GT gamma*gamma - GT ll gamma, where the dilepton invariant mass is less than 20 GeV. For a Higgs boson with m(H) = 125 GeV, a 95% confidence level (CL) exclusion observed (expected) limit is 6.7 (5.9(-1.8)(+2.8)) times the standard model prediction. Additionally, an upper limit at 95% CL on the branching fraction of H - ...GT (J/psi)gamma for the 125 GeV Higgs boson is set at 1.5 x10(-3). (C) 2015 CERN for the benefit of the CMS Collaboration. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
Кључне речи:
CMS / Physics / Higgs boson / Dalitz decayИзвор:
Physics Letters B, 2016, 753, 341-362Издавач:
- Elsevier
DOI: 10.1016/j.physletb.2015.12.039
ISSN: 0370-2693
WoS: 000368783600052
Scopus: 2-s2.0-84952801806
Колекције
Институција/група
VinčaTY - JOUR AU - Khachatryan, V. AU - Adžić, Petar AU - Ekmedžić, Marko AU - Milošević, Jovan AU - Reković, Vladimir AU - Đorđević, Miloš AU - Milenović, Predrag PY - 2016 UR - https://vinar.vin.bg.ac.rs/handle/123456789/906 AB - A search is described for a Higgs boson decaying into two photons, one of which has an internal conversion to a muon or an electron pair (ll gamma). The analysis is performed using proton-proton collision data recorded with the CMS detector at the LHC at a centre-of-mass energy of 8TeV, corresponding to an integrated luminosity of 19.7 fb(-1). The events selected have an opposite-sign muon or electron pair and a high transverse momentum photon. No excess above background has been found in the three-body invariant mass range 120 LT m(ll gamma) LT 150 GeV, and limits have been derived for the Higgs boson production cross section times branching fraction for the decay H - GT gamma*gamma - GT ll gamma, where the dilepton invariant mass is less than 20 GeV. For a Higgs boson with m(H) = 125 GeV, a 95% confidence level (CL) exclusion observed (expected) limit is 6.7 (5.9(-1.8)(+2.8)) times the standard model prediction. Additionally, an upper limit at 95% CL on the branching fraction of H - GT (J/psi)gamma for the 125 GeV Higgs boson is set at 1.5 x10(-3). (C) 2015 CERN for the benefit of the CMS Collaboration. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). PB - Elsevier T2 - Physics Letters B T1 - Search for a Higgs boson decaying into gamma*gamma - GT ll gamma with low dilepton mass in pp collisions at root s=8 TeV VL - 753 SP - 341 EP - 362 DO - 10.1016/j.physletb.2015.12.039 ER -
@article{ author = "Khachatryan, V. and Adžić, Petar and Ekmedžić, Marko and Milošević, Jovan and Reković, Vladimir and Đorđević, Miloš and Milenović, Predrag", year = "2016", abstract = "A search is described for a Higgs boson decaying into two photons, one of which has an internal conversion to a muon or an electron pair (ll gamma). The analysis is performed using proton-proton collision data recorded with the CMS detector at the LHC at a centre-of-mass energy of 8TeV, corresponding to an integrated luminosity of 19.7 fb(-1). The events selected have an opposite-sign muon or electron pair and a high transverse momentum photon. No excess above background has been found in the three-body invariant mass range 120 LT m(ll gamma) LT 150 GeV, and limits have been derived for the Higgs boson production cross section times branching fraction for the decay H - GT gamma*gamma - GT ll gamma, where the dilepton invariant mass is less than 20 GeV. For a Higgs boson with m(H) = 125 GeV, a 95% confidence level (CL) exclusion observed (expected) limit is 6.7 (5.9(-1.8)(+2.8)) times the standard model prediction. Additionally, an upper limit at 95% CL on the branching fraction of H - GT (J/psi)gamma for the 125 GeV Higgs boson is set at 1.5 x10(-3). (C) 2015 CERN for the benefit of the CMS Collaboration. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).", publisher = "Elsevier", journal = "Physics Letters B", title = "Search for a Higgs boson decaying into gamma*gamma - GT ll gamma with low dilepton mass in pp collisions at root s=8 TeV", volume = "753", pages = "341-362", doi = "10.1016/j.physletb.2015.12.039" }
Khachatryan, V., Adžić, P., Ekmedžić, M., Milošević, J., Reković, V., Đorđević, M.,& Milenović, P.. (2016). Search for a Higgs boson decaying into gamma*gamma - GT ll gamma with low dilepton mass in pp collisions at root s=8 TeV. in Physics Letters B Elsevier., 753, 341-362. https://doi.org/10.1016/j.physletb.2015.12.039
Khachatryan V, Adžić P, Ekmedžić M, Milošević J, Reković V, Đorđević M, Milenović P. Search for a Higgs boson decaying into gamma*gamma - GT ll gamma with low dilepton mass in pp collisions at root s=8 TeV. in Physics Letters B. 2016;753:341-362. doi:10.1016/j.physletb.2015.12.039 .
Khachatryan, V., Adžić, Petar, Ekmedžić, Marko, Milošević, Jovan, Reković, Vladimir, Đorđević, Miloš, Milenović, Predrag, "Search for a Higgs boson decaying into gamma*gamma - GT ll gamma with low dilepton mass in pp collisions at root s=8 TeV" in Physics Letters B, 753 (2016):341-362, https://doi.org/10.1016/j.physletb.2015.12.039 . .