Conference Presentations

 2021-04-0612:02 [PUBDB-2021-01677] Conference Presentation Tonon, N. EFT and top: experimental point of view Top LHC France Workshop 2021, TopLHCFrance, DESYOnline, DESY, France (Online), 6 Apr 2021 - 7 Apr 2021 Restricted: PDF PDF (PDFA); 2021-04-0611:58 [PUBDB-2021-01676] Conference Presentation Tonon, N. tt+X production at CMS and ATLAS Rencontres de Moriond 2021: QCD and High Energy Interactions, 27 Mar-3 Apr 2021,, Moriond/QCD2021, DESYLa Thuile (Online), DESY, France (Online), 27 Mar 2021 - 3 Apr 2021 Restricted: PDF PDF (PDFA); External link: Fulltext 2021-04-0611:11 [PUBDB-2021-01674] Conference Presentation Giraldi, A. Improvements of the MVA classifiers for the ttH(bb) analysis in the dilepton channel with full Run2 data in the CMS experiment DPG Frühjahrstagung Dortmund 2021 (Fachverband Teilchenphysik), DPG2021, DESYDortmund (online), DESY, Germany (online), 15 Mar 2021 - 19 Mar 2021 In the Standard Model (SM), the Higgs boson couples to fermions with a Yukawa-type interaction and a strength proportional to the fermion mass. The associated production of a Higgs boson with a top-quark pair (ttH) is therefore the best direct probe of the top-Higgs Yukawa coupling, a vital element to verify the SM nature of the Higgs boson. [...] Restricted: PDF PDF (PDFA); External link: Fulltext 2021-04-0611:08 [PUBDB-2021-01673] Conference Presentation Cheng, C. Test Beam Analysis of a Silicon-Strip Module for the CMS Phase-II Tracker Upgrade DPG Frühjahrstagung Dortmund 2021 (Fachverband Teilchenphysik), DPG2021, DESYDortmund (online), DESY, Germany (online), 15 Mar 2021 - 19 Mar 2021 The foreseen Large Hadron Collider upgrade is expected to deliver an integrated luminosity that is one order of magnitude larger after 2027. Rare processes and new phenomena may be observed in this high luminosity era. [...] Restricted: PDF PDF (PDFA); External link: Fulltext 2021-04-0611:04 [PUBDB-2021-01672] Conference Presentation Wuchterl, S. ; Defranchis, M. ; Lipka, K. Measurement of the top quark pole mass using $t\bar{t}$+1 jet events with the CMS experiment DPG Frühjahrstagung Dortmund 2021 (Fachverband Teilchenphysik), DPG2021, DESYDortmund (online), DESY, Germany (online), 15 Mar 2021 - 19 Mar 2021 The top quark is the most massive elementary particle known. Its mass, mt, is a fundamental parameter of the Standard Model (SM), and its value needs to be determined experimentally. [...] Restricted: PDF PDF (PDFA); External link: Fulltext 2021-04-0610:59 [PUBDB-2021-01671] Conference Presentation Walter, D. ; Tonon, N. ; Jafari, A. Differential Measurement of the Associated Production of a Single Top Quark and a Z Boson at the CMS Experiment DPG Frühjahrstagung Dortmund 2021 (Fachverband Teilchenphysik), DPG2021, DESYDortmund (online), DESY, Germany (online), 15 Mar 2021 - 19 Mar 2021 The top quark is the heaviest particle of the standard model (SM) and can be produced through strong interactions in top quark-antiquark pairs, or polarised as a single top quark (or antiquark) via the electroweak interaction. The associated production of a single top quark and a Z boson (pp → tZq) includes the tZ coupling as well as the coupling of three vector bosons (WWZ) and is therefore a unique process to study the couplings of heavy particles in the SM. [...] Restricted: PDF PDF (PDFA); External link: Fulltext 2021-04-0610:56 [PUBDB-2021-01670] Conference Presentation Petersen, H. ; Sosa Ricardo, R. E. ; Savitskyi, M. ; et al Measurements of differential cross sections for $t\bar{t}$ production at $\sqrt{s}$=13 TeV with the CMS experiment DPG Frühjahrstagung Dortmund 2021 (Fachverband Teilchenphysik), DPG2021, DESYDortmund (online), DESY, Germany (online), 15 Mar 2021 - 19 Mar 2021 Precision tests of the Standard Model are of utmost importance in particle physics, not only in order to test existing theories but also to probe the realm of new physics. The top quark is of particular interest in this context, as its heavy mass can link it to production- and decay-modes of new processes at higher energy scales. [...] Restricted: PDF PDF (PDFA); External link: Fulltext 2021-04-0610:51 [PUBDB-2021-01669] Conference Presentation Stafford, D. ; Perez Adan, D. ; Anuar, A. A. ; et al Searching for Dark Matter in top quark production with the CMS experiment DPG Frühjahrstagung Dortmund 2021 (Fachverband Teilchenphysik), DPG2021, Dortmund (online)Dortmund (online), Germany (online), 15 Mar 2021 - 19 Mar 2021 Astronomical observations provide strong evidence that a large proportion of the matter in the universe is "Dark Matter" (DM) not described in the Standard Model (SM) of particle physics. Furthermore, many cosmological models suggest Dark Matter should couple to the SM on the 100 GeV scale, and hence may be produced at the LHC, appearing as missing transverse momentum. [...] Restricted: PDF PDF (PDFA); External link: Fulltext 2021-04-0610:47 [PUBDB-2021-01668] Conference Presentation Otarid, Y. Transverse momentum discriminating silicon modules for the Phase-II Upgrade of the CMS Outer Tracker DPG Frühjahrstagung Dortmund 2021 (Fachverband Teilchenphysik), DPG2021, DESYDortmund (online), DESY, Germany (online), 15 Mar 2021 - 19 Mar 2021 The Large Hadron Collider (LHC) will undergo a major High Luminosity upgrade with the goal of delivering a peak instantaneous luminosity of about 5−7.5 × 1034cm−2s−1 by 2027. In order for the CMS experiment to cope with the higher radiation levels and data rates, the current CMS Silicon Outer Tracker will be replaced. [...] Restricted: PDF PDF (PDFA); External link: Fulltext 2021-04-0119:08 [PUBDB-2021-01636] Conference Presentation Biekoetter, T. BSM Higgs bosons in the reach of the LHC "Higgs as a Probe of New Physics" Special Edition 2021, HPNP2021, Osaka UniversityOsaka, Osaka University, Japan, 25 Mar 2021 - 27 Mar 2021 Many extensions of the Standard Model (SM) contain additional Higgs bosons heavier than the Higgs boson at 125GeV. However, there is also the possibility of beyond the SM (BSM) Higgs bosons with masses below 125 GeV. [...] Restricted: PDF PDF (PDFA); External link: Fulltext