# Conference Presentations

 2021-11-2411:51 [PUBDB-2021-04798] Conference Presentation Zimermmane Castro Santos, A. ; Wagner, M. ; Hoffmann, J. Including heavy spin effects in the investigation of bbud tetraquark candidates with lattice QCD static potentials DPG Frühjahrstagung Dortmund 2021 (Fachverband Teilchenphysik), DPG2021, Dortmund (online)Dortmund (online), Germany (online), 15 Mar 2021 - 19 Mar 2021 The study of exotic hadrons composed of four or more valence quarks is very challenging, both from theoretical and experimental perspectives. In this context, the particular class of states composed of two heavy antiquarks, bb, and two light quarks, ud is a promising system in the search for tetraquark candidates.In this talk, I present an approach to investigate such a system in the Born-Oppenheimer approximation using lattice-QCD static potentials. [...] Restricted: PDF PDF (PDFA); External link: Fulltext 2021-11-1911:26 [PUBDB-2021-04739] Conference Presentation Stehr, F. P. G. ; Bohlen, S. ; Popp, J. ; et al LEAP: Polarized Electrons from LPA Virtual DPG Spring Meeting, DortmundDortmund, Germany, 15 Mar 2021 - 19 Mar 2021 In recent years, laser plasma acceleration (LPA) has become a promising alternative to conventional RF accelerators. Polarized beams areindispensable for many experiments in particle, atomic and nuclearphysics as well as in material science, where spin-dependent processesare to be studied. [...] Restricted: PDF PDF (PDFA); External link: Fulltext 2021-11-1911:12 [PUBDB-2021-04738] Conference Presentation Popp, J. ; Bohlen, S. ; Stehr, F. P. G. ; et al Polarimeter Design for a LPA Electron Beam Virtual DPG spring meeting, DortmundDortmund, Germany, 15 Mar 2021 - 19 Mar 2021 Laser Plasma Acceleration (LPA) with its extremely high gradientspromises compact accelerators and great progress has been made inthat direction. However, many applications in material science, nuclearand high energy physics require polarized electron beams.The motivation of the LEAP project at DESY is the first timedemonstration of LPA with polarization. [...] Restricted: PDF PDF (PDFA); External link: Fulltext 2021-11-1910:29 [PUBDB-2021-04737] Conference Presentation Popp, J. ; Bohlen, S. ; Stehr, F. P. G. ; et al LEAP: Polarized Electron Beams from LPA and their Polarimetry The 24th international spin symposium, SPIN2021, MatsueMatsue, Japan, 18 Oct 2021 - 22 Oct 2021 In recent years, Laser Plasma Acceleration (LPA) has become a promising alternative to conventional RF accelerators. However, so far, it has only been theoretically shown that polarized LPA beams are possible. [...] Restricted: PDF PDF (PDFA); External link: Fulltext 2021-11-1815:00 [PUBDB-2021-04692] Conference Presentation Blekman, F. CMS status report 148th LHCC Meeting - Open Session, LHCC148, CERN, Video onlyCERN, Video only, Virtual World, 17 Nov 2021 - 17 Nov 2021 Restricted: PDF PDF (PDFA); External link: Fulltext 2021-11-1814:37 [PUBDB-2021-04689] Conference Presentation Raspiareza, A. Searches for additional heavy Higgs bosons at CMS Higgs 2021 Conference, Higgs2021, Stony Brook, NY (ONLINE)Stony Brook, NY (ONLINE), Virtual World, 18 Oct 2021 - 22 Oct 2021 The latest results on searches for additional neutral and charged Higgs bosons at CMS are presented. The results include searches for additional Higgs bosons decays into pairs of fermions and charged Higgs boson decays with fermionic final states Restricted: PDF PDF (PDFA); External link: Fulltext 2021-11-1814:33 [PUBDB-2021-04688] Conference Presentation Kaveh, H. Higgs boson decays into b and c quarks with the CMS experiment Higgs 2021 Conference, Higgs2021, Stony Brook, NY (ONLINE)Stony Brook, NY (ONLINE), Virtual World, 18 Oct 2021 - 22 Oct 2021 We present the latest CMS results on the measurement of Higgs boson production with H->bb decays, considering production in association with a vector boson and via vector boson fusion or gluon fusion. In addition, we discuss the latest searches for H->cc decays.. Restricted: PDF PDF (PDFA); External link: Fulltext 2021-11-1814:23 [PUBDB-2021-04687] Conference Presentation Filatov, O. Analysis of the CP structure of the Higgs boson in tau tau decays at CMS Higgs 2021 Conference, Higgs2021, Stony Brook, NY (ONLINE)Stony Brook, NY (ONLINE), Virtual World, 18 Oct 2021 - 22 Oct 2021 The standard model (SM) predicts the Higgs boson to be even under charge-parity (CP) inversion. That makes any experimentally observed deviations from this hypothesis an intriguing hint towards new physics.In this talk we present the first measurement of the CP properties of the Higgs boson in its coupling to leptons. [...] Restricted: PDF PDF (PDFA); External link: Fulltext 2021-11-1814:12 [PUBDB-2021-04686] Conference Presentation Walter, D. Rare top quark production in CMS: $t\bar{t}Z, t\bar{t}W, t\bar{t}\gamma, tZ, t\gamma$, and $t\bar{t}t\bar{t}$ production 32nd Rencontres de Blois - Particle Physics and Cosmology, Blois2021, BloisBlois, France, 17 Oct 2021 - 22 Oct 2021 Restricted: PDF PDF (PDFA); External link: Fulltext 2021-11-1814:04 [PUBDB-2021-04683] Conference Presentation Jafari, A. Precision Physics at the Large Hadron Collider 50 Years of Hadron Colliders at CERN, ISR50, CERN, GenevaCERN, Geneva, Switzerland, 14 Oct 2021 - 14 Oct 2021 Restricted: PDF PDF (PDFA); External link: Fulltext