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Mostrando 4,101 - 4,120 Resultados de 4,448 Para Buscar '"Charmed"', tiempo de consulta: 0.25s Limitar resultados
  1. 4101
    por Capriotti, Lorenzo
    Publicado 2018
    “….\\ The second analysis is a sensitivity study for a test of lepton universality in semileptonic charm decays, aiming to measure the ratio of branching fractions $R^{\mu/e} = \frac{\mathcal{B}(\Dz\to\Km \mup \neum)}{\mathcal{B}(\Dz\to \Km \ep\neue)}$. …”
    Enlace del recurso
    Searches for new physics in violation of strong $CP$ symmetry and lepton universality with the LHCb experiment
  2. 4102
    por Jensen, Simon Vindbaek
    Publicado 2018
    “…Finally, the thermal neutron distribution in the CERN High energy AcceleRator Mixed field (CHARM) facility is investigated in collaboration with a radiation protection team from Japan. …”
    Enlace del recurso
    Radiation protection
  3. 4103
    por Dubla, Andrea
    Publicado 2019
    “…  The magnetic field induces a charge separation in this anisotropy. The charm quark is an ideal candidate to probe the properties of this magnetic field, because its formation time is comparable to the time at which the magnetic field is expected to attain its maximum. …”
    Enlace del recurso
    Probing early time dynamics and magnetic fields with the directed flow of light and heavy-flavour particles in ALICE
  4. 4104
    por Sekihata, Daiki
    Publicado 2020
    “…In the intermediate-mass region (1.1 $< m_{\rm ee} <$ 2.8 GeV/$c^{2}$), the measurement of thermal dielectrons from the QGP is very challenging at the LHC due to the dominant contribution of correlated e$^{+}$e$^{-}$ pairs from semileptonic decays of charm and beauty hadrons. Finally, at very low pair transverse momenta initial photon annihilation and photonuclear processes, triggered by the coherent electromagnetic fields of the incoming nuclei, are expected to play a role in more peripheral collisions. …”
    Enlace del recurso
    Low-mass dielectron measurements in Pb-Pb collisions with ALICE at the LHC
  5. 4105
    por Cai, Mengke
    Publicado 2020
    “…In particular, beauty quarks, being four times heavier than charm quarks, can be utilized to study the in-medium mass dependent energy loss. …”
    Enlace del recurso
    Beauty production with ALICE at the LHC
  6. 4106
    por Reynolds, Elliot
    Publicado 2020
    “…First, a direct search is performed for Higgs boson decays to charm quarks. An upper limit is set at $110\times$ the SM expectation on $\sigma(ZH)\times\text{BR}(H\to cc)$. …”
    Enlace del recurso
    Searching for New Physics in Decays of the Higgs Boson with the ATLAS Detector
  7. 4107
    por Gauger, Erin Frances
    Publicado 2021
    “…The results will be compared with previous measurements of heavy-flavor (charm and beauty) decay electrons and with theoretical predictions. …”
    Enlace del recurso
    Production of beauty-hadron decay electrons in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}} = 5.02$ TeV in ALICE
  8. 4108
    por The ATLAS collaboration
    Publicado 2021
    “…The search targets $H^{\pm}$ decays into a bottom and a charm quark, $H^{\pm} \rightarrow cb$. The analysis focuses on data enriched in top-quark pair production, where one top quark decays into a leptonically decaying $W$ boson and a bottom quark, and the other top quark decays into a charged Higgs boson and a bottom quark. …”
    Enlace del recurso
    Search for a light charged Higgs boson in t$\rightarrow$H^+b decays, with H^{+}$\rightarrow$cb, in the lepton+jets final state in proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
  9. 4109
    por Arcangeletti, Chiara
    Publicado 2021
    “…This thesis describes my work on the Higgs boson fiducial cross section measurements, both inclusively and differentially, performed with full Run 2 dataset, together with their interpretation in different theoretical frameworks: Pseudo-Observables and $\kappa$-framework to constrain the Yukawa coupling with the charm quark. The Higgs boson CP properties have been also tested, in particular in the VBF production mechanism, looking for possible CP-violation effects in the Higgs sector in an Effective Field Theory (EFT) framework.…”
    Enlace del recurso
    Test of the Standard Model in the $H \to ZZ^{*} \to 4\ell$ decay channel with the Effective Lagrangian framework and construction and performance of the Micromegas chambers for the ATLAS New Small Wheel upgrade
  10. 4110
    por Klein, Jochen, Leeuwen, Marco Van
    Publicado 2021
    “…This suggests “regeneration” of J/Ψ mesons by formation via coalescence of independently produced charm and anticharm quarks.…”
    Enlace del recurso
    Enlace del recurso
    The ALICE Upgrades: Toward a Next-Generation Heavy-Ion Experiment at the LHC
  11. 4111
    “…In this preliminary study, a few selected SMA-based prototype UHV chambers, have been exposed to a high-energy mixed particle field (up to ∼140 kGy of absorbed dose) at the CERN high-energy accelerator mixed-field (CHARM) facility. The results, in terms of post-irradiation measurements, have revealed that leak tightness and thermal dismounting are unaffected by irradiation…”
    Enlace del recurso
    Enlace del recurso
    Particle radiation effects on shape memory alloy couplers for ultra-high vacuum sealing: a preliminary study
  12. 4112
    por CMS Collaboration
    Publicado 2023
    “…Final states with a same-sign lepton pair in association with a charm or up quark are considered. New Higgs bosons in the $200-1000~\mathrm{GeV}$ mass range are targeted in the search, for scenarios in which either $\mathrm{H}$ or $\mathrm{A}$ appear alone, or in which they coexist and interfere. …”
    Enlace del recurso
    Search for new Higgs bosons through same-sign top quark pair production in association with a jet in proton-proton collisions at $\sqrt{s}=13~\mathrm{TeV}$
  13. 4113
    por The ATLAS collaboration
    Publicado 2023
    “…This paper presents a search for top-squark pair production in final states with a top quark, charm quark and missing transverse momentum using a dataset collected with the ATLAS detector during LHC Run 2, corresponding to an integrated luminosity of 139 fb$^{-1}$ at a centre-of-mass energy of $\sqrt{s} = 13$ TeV proton-proton collisions. …”
    Enlace del recurso
    A search for top-squark pair production, in final states containing a $t$-quark, $c$-quark and missing transverse momentum, using the full Run 2 dataset collected by the ATLAS detector
  14. 4114
    “…The LHCb experiment is designed to study differences between particles and anti-particles as well as very rare decays in the beauty and charm sector at the LHC. The detector will be upgraded in 2019 in order to significantly increase its efficiency, by removing the first-level hardware trigger. …”
    Enlace del recurso
    Enlace del recurso
    The PCIe-based readout system for the LHCb experiment
  15. 4115
    por Azzi, P
    Publicado 2015
    “…Discoveries kept confirming this pattern: quark charm in 1974, tau lepton in 1976 and the bound state of the quark b in 1977. …”
    Enlace del recurso
    Celebrating 20 years of the discovery of the top quark
  16. 4116
    por Bombonati, Carlo
    Publicado 2017
    “…Moreover, using previous studies on the charm production measurement, it has been possible to estimate the sensitivity to the mass dependence of the partonic energy loss.…”
    Enlace del recurso
    Commissioning of the Silicon Pixel Detector of ALICE and perspectives for beauty production at LHC
  17. 4117
    por Gandini, Paolo
    Publicado 2017
    “…The LHCb detector is a single-arm spectrometer at the LHC, optimised for beauty and charm flavour physics. As the angle γ is the least experimentally constrained parameter of the Unitary Triangle, its precise experimental determination can be used to test the validity of the Standard Model. …”
    Enlace del recurso
    Enlace del recurso
    Observation of CP violation in B+/- → DK+/- decays
  18. 4118
    “…Our result at the physical point is <math display="inline"><msubsup><mi>a</mi><mi>μ</mi><mi>win</mi></msubsup><mo>=</mo><mo stretchy="false">(</mo><mn>237.30</mn><mo>±</mo><mn>0.7</mn><msub><mn>9</mn><mrow><mi>stat</mi></mrow></msub><mo>±</mo><mn>1.2</mn><msub><mn>2</mn><mrow><mi>syst</mi></mrow></msub><mo stretchy="false">)</mo><mo>×</mo><msup><mn>10</mn><mrow><mo>-</mo><mn>10</mn></mrow></msup></math>, where the systematic error includes an estimate of the uncertainty due to the quenched charm quark in our calculation. Our result displays a tension of <math display="inline"><mrow><mn>3.9</mn><mi>σ</mi></mrow></math> with a recent evaluation of <math display="inline"><msubsup><mi>a</mi><mi>μ</mi><mi>win</mi></msubsup></math> based on the data-driven method.…”
    Enlace del recurso
    Enlace del recurso
    Window observable for the hadronic vacuum polarization contribution to the muon $g-2$ from lattice QCD
  19. 4119
    por LHCb Collaboration
    Publicado 2022
    “…The relative branching fraction of $B^{-} \to \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-} K^{-}$ with respect to the $B^{-} \to D^{+} D^{-} K^{-}$ decay is measured to be $2.36 \pm 0.11 \pm 0.22 \pm 0.25$, where the first uncertainty is statistical, the second systematic and the third originates from the branching fractions of charm hadron decays.…”
    Enlace del recurso
    Enlace del recurso
    Study of the $B^{-} \to \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-} K^{-}$ decay
  20. 4120
    por van Leeuwen, M., Afanasiev, S.V., Anticic, T., Baatar, B., Barna, D., Bartke, J., Barton, R.A., Behler, M., Betev, L., Białkowska, H., Billmeier, A., Blume, C., Blyth, C.O., Boimska, B., Botje, M., Bracinik, J., Bramm, R., Brun, R., Buncˇić, P., Cerny, V., Chvala, O., Cramer, J.G., Csató, P., Dinkelaker, P., Eckardt, V., Filip, P., Fischer, H.G., Fodor, Z., Foka, P., Freund, P., Friese, V., Gál, J., Gaździcki, M., Georgopoulos, G., Gładysz, E., Hegyi, S., Höhne, C., Igo, G., Jones, P.G., Kadija, K., Karev, A., Kolesnikov, V.I., Kollegger, T., Kowalski, M., Kraus, I., Kreps, M., Lévai, P., Malakhov, A.I., Margetis, S., Market, C., Mayes, B.W., Melkumov, G.L., Meurer, C., Mischke, A., Mitrovski, M., Molnár, J., Nelson, J.M., Pálla, G., Panagiotou, A.D., Perl, K., Petridis, A., Pikna, M., Pinsky, L., Pühlhofer, F., Reid, J.G., Renfordt, R., Retyk, W., Roland, C., Roland, G., Rybicki, A., Sammer, T., Sandoval, A., Sann, H., Schmitz, N., Seyboth, P., Siklér, F., Sitar, B., Skrzypczak, E., Squier, G.T.A., Stock, R., Ströbele, H., Susa, T., Szentpétery, I., Sziklai, J., Trainor, T.A., Varga, D., Vassiliou, M., Veres, G.I., Vesztergombi, G., Vranić, D., Wenig, S., Wetzler, A., Whitten, C., Yoo, I.K., Zaranek, J., Zimányi, J.
    Publicado 2002
    “…This maximum could indicate the formation of deconfined matter at energies above 40 $A$GeV. A search for open charm in a large sample of 158 $A$GeV events is presented. …”
    Enlace del recurso
    Enlace del recurso
    Recent results on spectra and yields from NA49
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