# Reports

 2019-05-2811:31 [PUBDB-2019-02384] Report/Journal Article et al Lattice QCD study of the H dibaryon using hexaquark and two-baryon interpolators [CERN-TH-2018-098; DESY-18-066; HIM-2018-02; MITP-18-030; TIFR-TH-18-12; arXiv:1805.03966] Physical review / D 99(7), 074505 (2019) [10.1103/PhysRevD.99.074505]   We present a lattice QCD spectroscopy study in the isospin singlet, strangeness $-2$ sectors relevant for the conjectured $H$ dibaryon. We employ both hexaquark and two-baryon interpolating operators to isolate the ground state in the rest frame and in moving frames. [...] OpenAccess: PDF PDF (PDFA); 2019-05-2714:44 [PUBDB-2019-02380] Report/Contribution to a conference proceedings CMS Collaboration Measurements of the inclusive $\rm t\bar{t}$ production cross section at the ATLAS and CMS experiments [arXiv:1901.10898; SNSN-323-63] 11th International Workshop on Top Quark Physics, TOP2018, Bad NeuenahrBad Neuenahr, Germany, 16 Sep 2018 - 21 Sep 2018Contributions / Info 6 pp. (2019) [10.3204/PUBDB-2019-02380]   The results of the most recent measurements of the inclusive $\mathrm{t\bar{t}}$ cross section performed by the ATLAS and CMS experiments at the CERN LHC are summarized. These include results obtained in proton-proton collisions at different centre-of-mass energies, and the first observation of $\mathrm{t\bar{t}}$ production in proton-lead collisions. [...] OpenAccess: PDF PDF (PDFA); 2019-05-2711:41 [PUBDB-2019-02375] Report/Conference Presentation Anuar, A. A. $t\bar{t}$ spin density matrix and constraints on new phenomena [CMS-PAS-TOP-18-006] Fourth Alpine LHC Physics Summit, ALPS2019, ObergurglObergurgl, Austria, 22 Apr 2019 - 27 Apr 2019   Measurements of the properties of the top quark can serve as stringent tests of the standard model (SM). To date, all the measurements of its pair and single production cross sections and properties indicate that it is indeed the top quark as predicted by the SM. [...] OpenAccess: PDF PDF (PDFA); External link: Fulltext 2019-05-2710:41 [PUBDB-2019-02373] Report/Journal Article et al Calculation of the Z+jet cross section including transverse momenta of initial partons [arXiv:1809.03854; DESY-18-159; CERN-TH-2018-204] Physical review / D 99(9), 094011 (2019) [10.1103/PhysRevD.99.094011]   We perform calculations of Z+jet cross-section taking into account the transverse momenta of the initial partons. Transverse Momentum Dependent (TMD) parton densities obtained with the Parton Branching method are used and higher order corrections are included via TMD parton showers in the initial state. [...] OpenAccess: PDF PDF (PDFA); 2019-05-2314:17 [PUBDB-2019-02359] Book/Report/Master Thesis Steder, L. Systematic Studies of a Cavity Quench Localization System [DESY-THESIS-2019-010] Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 120 pp. (2019) [10.3204/PUBDB-2019-02359] = Masterarbeit, Universität Hamburg, 2019   Several tools for quench localization at Superconducting Radio Frequency cavities exist. One of these techniques uses the excitation of temperature waves in liquid Helium below the lambda point. [...] OpenAccess: MasterThesis_B_Bein - PDF PDF (PDFA); desy-thesis-19-010.title - PDF PDF (PDFA); 2019-05-2114:21 [PUBDB-2019-02325] Report/Journal Article et al Search for vector-like quarks in events with two oppositely charged leptons and jets in proton-proton collisions at $\sqrt{s} =$ 13 TeV [arXiv:1812.09768; CMS-B2G-17-012; CERN-EP-2018-290]   A search for the pair production of heavy vector-like partners $\mathrm {T}$ and $\mathrm {B}$ of the top and bottom quarks has been performed by the CMS experiment at the CERN LHC using proton–proton collisions at $\sqrt{s} = 13\,\text {Te}\text {V}$ . The data sample was collected in 2016 and corresponds to an integrated luminosity of 35.9 $\,\text {fb}^{-1}$ . [...] OpenAccess: PDF PDF (PDFA); 2019-05-2114:17 [PUBDB-2019-02324] Report/Journal Article et al Measurement of the $\mathrm{t}\overline{\mathrm{t}}$ production cross section, the top quark mass, and the strong coupling constant using dilepton events in pp collisions at $\sqrt{s} =$ 13 TeV [arXiv:1812.10505; CMS-TOP-17-001; CERN-EP-2018-317]   A measurement of the top quark–antiquark pair production cross section $\sigma _{\mathrm {t}\overline{\mathrm {t}}}$ in proton–proton collisions at a centre-of-mass energy of 13 $\,\text {Te}\text {V}$ is presented. The data correspond to an integrated luminosity of $35.9{\,\text {fb}^{-1}}$ , recorded by the CMS experiment at the CERN LHC in 2016. [...] OpenAccess: PDF PDF (PDFA); 2019-05-2114:14 [PUBDB-2019-02323] Report/Journal Article et al Measurement of inclusive very forward jet cross sections in proton-lead collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV [arXiv:1812.01691; CMS-FSQ-17-001; CERN-EP-2018-325] Journal of high energy physics 1905(05), 043 (2019) [10.1007/JHEP05(2019)043]   Measurements of differential cross sections for inclusive very forward jet production in proton-lead collisions as a function of jet energy are presented. The data were collected with the CMS experiment at the LHC in the laboratory pseudorapidity range $-$6.6$<\eta<-$5.2. [...] OpenAccess: PDF PDF (PDFA); 2019-05-2114:10 [PUBDB-2019-02322] Report/Journal Article et al Measurement of the energy density as a function of pseudorapidity in proton-proton collisions at $\sqrt{s} =$ 13 TeV [arXiv:1812.04095; CMS-FSQ-15-006; CERN-EP-2018-308]   A measurement of the energy density in proton-proton collisions at a centre-of-mass energy of $\sqrt{s}=$ 13 TeV is presented. The data have been recorded with the CMS experiment at the LHC during low luminosity operations in 2015. [...] OpenAccess: PDF PDF (PDFA); External link: Fulltext 2019-05-2114:00 [PUBDB-2019-02321] Report/Journal Article et al Search for an $L_{\mu}-L_{\tau}$ gauge boson using Z$\to4\mu$ events in proton-proton collisions at $\sqrt{s} =$ 13 TeV [arXiv:1808.03684; CMS-EXO-18-008; CERN-EP-2018-208] Physics letters / B 792, 345 - 368 (2019) [10.1016/j.physletb.2019.01.072]   A search for a narrow Z$'$ gauge boson with a mass between 5 and 70 GeV resulting from an $L_{\mu}-L_{\tau}$ $U(1)$ local gauge symmetry is reported. Events containing four muons with an invariant mass near the standard model Z boson mass are analyzed, and the selection is further optimized to be sensitive to the events that may contain Z$\to$Z$'\mu\mu\to4\mu$ decays. [...] OpenAccess: PDF PDF (PDFA); External link: Fulltext