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CERN Document Server Намерени са 2,042 записа  1 - 10следващкрай  отиване на запис: Търсенето отне 0.37 секунди. 
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Rare top quark production and decays at ATLAS and CMS / Skovpen, K. (Brussels U., IIHE) /ATLAS Collaboration ; CMS Collaboration
The most recent studies in the top quark sector are reviewed with the focus on the rare production mechanisms and suppressed decays. The experimental results obtained with the ATLAS and CMS detectors in proton-proton collisions at the center-of-mass energy of 13 TeV include the measurements of the associated production of top quark pairs with vector bosons (${\rm t\bar{t}W}$, ${\rm t\bar{t}Z}$, ${\rm t\bar{t}\gamma}$), the first evidence for the ${\rm t(\bar{t})\gamma q}$ process, the first observation of the ${\rm t(\bar{t})Zq}$ production, the study of the ${\rm t\bar{t}+b\bar{b}}$ and ${\rm t\bar{t}+t\bar{t}}$ processes, as well as searches for lepton flavour violation in top quark decays and effective field theory interpretations. [...]
arXiv:1905.08324.- 2019 - 6 p. - Published in : (2019) , pp. 35-40 Fulltext: PDF;
In : 54th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, Italy, 16 - 23 Mar 2019, pp.35-40
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First observation of the $\mathrm{t\bar{t}H}$ process at CMS / Skovpen, Kirill (Brussels U., IIHE)
The top quark and the Higgs boson play a special role in the fundamental interactions of the standard model. [...]
arXiv:1810.05715. - 2018. - 6 p, 6 p.
Fulltext
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tt+X measurements by CMS and ATLAS / Alvarez Gonzalez, Barbara (ICTEA, Oviedo) /CMS Collaboration ; ATLAS Collaboration
These proceedings present the observation of the 4-top production process and the latest results of the production of top-quark pairs associated with W and $\gamma$ bosons ($t\bar{t}W$ and $t\bar{t}\gamma$) and b jets ($t\bar{t}b\bar{b}$) at a collision energy of 13~TeV carried out by the CMS and ATLAS collaborations..
arXiv:2404.12046; CMS-CR-2024-064.- Geneva : CERN, 2024 - 6 p. Fulltext: CR2024_064 - PDF; 2404.12046 - PDF;
In : 12th International Workshop on the CKM Unitarity Triangle (CKM 2023), Santiago De Compostela, Spain, 18 - 22 Sep 2023
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Search for Charged Higgs boson to ${\rm c\bar{b}}$ in lepton+jets channel using top quark pair events /CMS Collaboration
Results on the search for a light charged Higgs boson ${\rm H^{+}}$ decaying to ${\rm c\bar{b}}$ in top quark pair events using the CMS detector at the LHC are presented. %It is the first search for a charged Higgs boson in this decay mode. [...]
CMS-PAS-HIG-16-030.- Geneva : CERN, 2016 Figure_001-a: PDF; Figure_001-b: PDF; Figure_002-a: PDF; Figure_002-b: PDF; Figure_002-c: PDF; Figure_002-d: PDF; Figure_002-e: PDF; Figure_002-f: PDF; Figure_003-a: PDF; Figure_003-b: PDF; Figure_003-c: PDF; Figure_003-d: PDF; Figure_003-e: PDF; Figure_003-f: PDF; Figure_004-a: PDF; Figure_004-b: PDF; Figure_004-c: PDF; Figure_005-a: PDF; Figure_005-b: PDF; Figure_005-c: PDF; Figure_005-d: PDF; Figure_006-a: PDF; Figure_006-b: PDF; Figure_006-c: PDF; Figure_006-d: PDF; Figure_007: PDF; Figure_008-a: PDF; Figure_008-b: PDF; Figure_009-a: PDF; Figure_009-b: PDF; Figure_010-a: PDF; Figure_010-b: PDF; Figure_011-a: PDF; Figure_011-b: PDF; Figure_011-c: PDF; Figure_012-a: PDF; Figure_012-b: PDF; Figure_013-a: PDF; Figure_013-b: PDF; Figure_014-a: PDF; Figure_014-b: PDF; Figure_014-c: PDF; Fulltext in PDF: PDF;
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The EFT and FCNC interpretations in the processes with top quarks at CMS / Skovpen, K. (Brussels U., IIHE) /CMS Collaboration
In absence of any distinct evidence of new physics phenomena at the LHC, an increasing number of experimental studies aim at probing anomalous effects with an effective field theory (EFT) that represents a comprehensive approach for interpretation of various experimental results. The processes with the production of top quarks are sensitive to several classes of EFT operators including the flavour-changing neutral currents (FCNC). [...]
CMS-CR-2019-142; arXiv:1910.04224.- Geneva : SISSA, 2020-06-17 - 7 p. - Published in : PoS EPS-HEP2019 (2020) 651 Fulltext: PDF;
In : European Physical Society Conference on High Energy Physics (EPS-HEP) 2019, Ghent, Belgium, 10 - 17 Jul 2019, pp.651
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First attempt to search for H+ to cbbar in top quark decays at CMS / Yu, Geum Bong (Seoul Natl. U.) /CMS Collaboration
Results on the first search for a light charged Higgs boson ${\rm H^{+}}$ decaying to ${\rm c\bar{b}}$ in top quark pair events using the CMS detector at the LHC are presented. %It is the first search for a charged Higgs boson in this decay mode. [...]
CMS-CR-2016-378.- Geneva : CERN, 2016 - 5 p. - Published in : PoS ICHEP2016 (2016) 776 Fulltext: PDF;
In : 38th International Conference on High Energy Physics, Chicago, IL, USA, 03 - 10 Aug 2016, pp.776
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(61)
Observation of ${\rm t\bar{t}H}$ production at CMS / Diez Pardos, Carmen (DESY) /CMS Collaboration
Recent searches for the production of a Higgs boson (H) in association with a top quark pair (${\rm t\bar{t}H}$) by the CMS Collaboration are presented. They are performed using 36 fb$^{-1}$ of LHC pp collision data at $\sqrt{s}$=13 TeV collected in 2016. [...]
CMS-CR-2018-346.- Geneva : SISSA, 2019 - 4 p. - Published in : PoS ICHEP2018 (2019) 711 CMS Note: PDF; Fulltext from publisher: PDF;
In : XXXIX International Conference on High Energy Physics, Seoul, Korea, 4 - 11 Jul 2018, pp.611
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New results on Higgs boson properties / Piedra, Jónatan (Cantabria Inst. of Phys.) /ATLAS and CMS Collaborations
We present the latest ATLAS and CMS measurements of several properties of the Higgs boson, such as signal-strength modifiers for the main production modes, fiducial and differential cross sections, and the Higgs mass. We have analyzed the 13~TeV proton-proton LHC collision data recorded in 2016, corresponding to integrated luminosities up to 36.1~${\rm fb}^{-1}$. [...]
CMS-CR-2017-244; arXiv:1710.07081.- Geneva : CERN, 2017 - 7 p. Fulltext: PDF; Preprint: PDF;
In : 5th Conference on Large Hadron Collider Physics 2017, Shanghai, China, 15 - 20 May 2017
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Search for flavour-changing neutral currents with top quarks / Skovpen, Kirill (Brussels U., IIHE ; Vrije U., Brussels)
Flavour-changing neutral currents are extremely rare processes in the standard model that can be sensitive to various new physics effects. [...]
arXiv:1711.01852. - 2017. - 6 p, 6 p.
Preprint
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Measurement of the top quark mass with lepton+jets final states in pp collisions at $\sqrt{s}=13~\mathrm{TeV}$ / Kovalchuk, Nataliia (U. Hamburg (main))
The mass of the top quark is measured using a sample of $\rm{t}\bar{\rm t}$ candidate events with one lepton, muon or electron, and at least four jets in the final state, collected by the CMS detector in pp collisions at $\sqrt{s}=13~\mathrm{TeV}$ at the CERN LHC. [...]
arXiv:1801.05619. - 2018. - 7 p.
Preprint
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