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14941por Caletti, Simone“…In particular, by tagging the final state jet as quark-initiated we have been able to enhance the initial-state gluon contribution. …”
Publicado 2022
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14942por CMS Collaboration“…A search for pair production of the supersymmetric partner of the top quark, the top squark, in proton-proton collision events at $ \sqrt{s} = 13$ TeV is presented in final states containing at least one hadronically decaying tau lepton and large missing transverse momentum. …”
Publicado 2022
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14943por Lopez Rosa, Elser Adolfo“…A key characteristic of the SM is that the source of matter-antimatter asymmetries stems from CP violation, quantified by a single phase in the CKM quark-mixing matrix. In the SM, unitarity conditions allow us to represent CP violating parameters as a triangle in the complex plane, with angles α, β and γ, and with an area proportional to the amount of CP violation. …”
Publicado 2022
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14944por Ploerer, Eduardo“…Parton showering studies exploiting the pure gluon sample from $\mathrm{ZH}({\rightarrow} \mathrm{gg})$ will greatly improve our understanding of gluon radiation and fragmentation, directly impacting quark vs gluon discrimination studies. Further possibilities include precision hadronization studies and colour reconnection studies at the WW threshold. …”
Publicado 2022
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14945por CMS Collaboration“…We present the first evidence for the standard model production of a top quark in association with a $\mathrm{W}$ and a $\mathrm{Z}$ boson in multilepton final states. …”
Publicado 2023
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14946“…Several explicit models are presented and their prospects are thoroughly explored, including their phenomenology in the lepton and quark sectors at colliders and lower energy experiments. …”
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14947por Sun, Wenrong“…By probing signal characteristics, the top quark is reconstructed. But we haven't obtained the correct dark photon signal because the overlap removal of the electron signal.…”
Publicado 2023
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14948por Bhatta, Somadutta“…These include measurement of vn-[pT] correlations in pp, Xe+Xe, and Pb+Pb, which carry important information about the initial-state geometry of the Quark-Gluon Plasma, provide an insight as to what effects are be observed without invoking hydrodynamic modeling, and can potentially shed light on any quadrupole deformation in the Xe nucleus. …”
Publicado 2023
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14949por Dalena, B, Chance, A, Antoniou, F, Etisken, O, Mashal, A, Raubenheimer, T, Zampetakis, M, Zimmermann, F“…In order to perform precision measurements of the Z, W and H bosons, as well as of the top quark, unprecedented luminosities are required. To reach this goal and to fill the collider, it is mandatory to continuously top up inject some beams with a comparable emittance to the collider ones and a bunch-by-bunch intensity variation below few %. …”
Publicado 2022
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14950por Kazakos, Stergios“…The production of $t\bar{t}$ in association with a W boson ($t\bar{t}W$) or in association with a b-quark pair ($t\bar{t}b\bar{b}$) are rare SM signatures that can be probed at the LHC. …”
Publicado 2023
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14951por Calvi, Marta“…Precise electroweak data are used to test the Standard Model prediction and, within its framework, to constrain the top quark mass to the value: m, = 179 ± 9 :!::�GeV which is in excellent agreement with the results from direct observation.…”
Publicado 1996
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14952Publicado 2001“…Why do the masses of fundamental particles differ so enormously -the top quark is more than 200,000 times heavier than the electron? …”
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14953por Trümper, Joachim E“…We shall discuss in more detail two recent topics: (1) The attempts to use X-ray spectroscopy for measuring the radii of neutron stars which depend on the equation of state at supranuclear densities. Have quark stars been detected? (2) The diagnostics of the strong gravity regions around supermassive black holes using X-ray spectroscopy.…”
Publicado 2002
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14954“…This note presents a study of b-jet tagging in ATLAS using soft electrons from semileptonic b-quark decays. Both Inner Detector and EM Calorimeter information is used by the b-tagging algorithm to identify signal electrons inside jets. …”
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14955por Ali, A“…The emphasis in these lecture notes is on $B$-meson physics, though we also review the current status and issues in the light quark sector of this matrix. Selected applications of theoretical methods in QCD used in the interpretation of data are given and some of the issues restricting theoretical precision on the CKM matrix elements discussed. …”
Publicado 2003
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14956“…The analysis is similar to the one performed by the L3 collaboration in 2000 which has reported an excess in the four-jet channel where the Higgs decay into a charm and a strange quark is considered. The observed candidates are consistent with the expectations from the Standard Model background processes and no excess is observed. …”
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14957por Miyazaki, K“…Based on the constituent quark picture of baryons and taking into account the contributions of isovector and strange mesons, we have developed the extended Zimanyi-Moszkowski model of dense baryon matter for studying neutron star equations-of-state. …”
Publicado 2004
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14958por Poulet, M“…Different models based on the geometrical pictures or multiple quark mechanism could describe these data. (7 refs).…”
Publicado 1981
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14959por Procureur, Sebastien“…$\frac{\Delta G}{G}$ is related to this asymmetry via the Photon-Gluon Fusion process, in which the virtual photon emitted by the muon interacts with a gluon from the nucleon to give a quark-antiquark pair. These processes are tagged either by the detection of a charmed D meson, or by requiring 2 hadrons with high transverse momentum in the final state. …”
Publicado 2005
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14960por Allen, Bruce, Christensen, Carl, Massey, Neil, Aina, Tolu, Marquina, Miguel Angel“…Such sources are believed to be either quark stars or neutron stars, and a subclass of these are already observed by conventional means as pulsars or X-ray emitting celestial objects. …”
Publicado 2005
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