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Search for the doubly heavy baryon $\Xi_{bc}$ via decays to $D^0 p K^-$
A search for the doubly heavy $\mathit{\Xi}_{bc}^{0}$ baryon using its decay to the $D^0pK^-$ final state is performed using proton-proton collision data at a centre-of-mass energy of 13 TeV collected by the LHCb experiment between 2016 and 2018, corresponding to an integrated luminosity of 5.4 $\mathrm{fb}^{-1}$. [...]
CERN-EP-2020-137 ; LHCB-PAPER-2020-014. - 2020.
Fulltext - Previous draft version - Related data file(s)

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Measurements of photon- and Z-tagged jet quenching by ATLAS / Ouellette, Jeff (University of Colorado Boulder)
The latest measurements of jet quenching by ATLAS with photon- and Z-tagged events are presented, as presented during a parallel talk in the Hard Probes 2020 conference. [...]
ATL-PHYS-PROC-2020-053. - 2020. - 5 p.
Original Communication (restricted to ATLAS) - Full text

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Rare top quark production in ATLAS ($t\bar{t}t\bar{t}$, $tqZ$, $tq\gamma$) / Sabatini, Paolo (Instituto de Fisica Corpuscular (IFIC), Centro Mixto Universidad de Valencia - CSIC)
The exceptionally large dataset of top quarks collected by the ATLAS Experiment at LHC during the Run II paves the way for more precise tests of the Standard Model in the top sector. [...]
ATL-PHYS-PROC-2020-052. - 2020.
Original Communication (restricted to ATLAS) - Full text

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Top mass and width from CMS and ATLAS / Negrini, Matteo (Universita e INFN, Bologna)
An overview of recent measurements of the mass and the width the top quark is presented. [...]
ATL-PHYS-PROC-2020-051. - 2020. - 5 p.
Original Communication (restricted to ATLAS) - Full text

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QUANTUM SENSORS of the DARK and EARLY UNIVERSE: Exploiting Quantum Entanglement in the Laboratory for Detection of Particles and Fields Beyond the Standard Model (BSM) and signals from Very Early Universe / Chattopadhyay, Swapan (speaker) (Distinguished Scientist, Fermilab, USA and President’s Professor of Research, Scholarship and Artistry Northern Illinois University, USA )
After an introduction of the extraordinary success of large particle accelerators, colliders and classical detectors of the late twentieth and early twenty-first centuries in developing the now widely accepted Standard Model (SM) of particle physics, I will introduce and expose the basic concepts and techniques of “quantum sensors”, illustrate “quantum entanglement” at work around us and its controlled exploitation in the laboratory to detect with high precision very weak signals of exotic particles and fields that may exist Beyond the Standard Model (BSM) and signals from the emerging “early” and “dark” universe. Our immediate familiar natural world as well as our known universe, as it supposedly emerged from the “Big Bang” 13.8 billion years ago, are "quantum-entangled" from the microscopic to the macroscopic scale, from the "inner" to the "outer" dimensions. This fundamental "quantum entanglement" can be harnessed to sense and probe extremely "weak" processes and signals in nature around us – signals left over from the very “early” and “dark” universe, allowing us to be ‘cosmic archaeologists’ [...]
2020 - 1:18:16. CERN Colloquium External link: Event details In : QUANTUM SENSORS of the DARK and EARLY UNIVERSE: Exploiting Quantum Entanglement in the Laboratory for Detection of Particles and Fields Beyond the Standard Model (BSM) and signals from Very Early Universe

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Dark matter at the LHC / Panizzo, Giancarlo (INFN Gruppo Collegato di Udine and Universita' di Udine, Dipartimento di Chimica, Fisica e Ambiente) /ATLAS Collaboration
Review of recent ATLAS and CMS results abobut Dark matter searches, intended for as an overview LHC talk to be presented at a conference with a rather broad audience..
ATL-PHYS-SLIDE-2020-340.- Geneva : CERN, 2020 - 26 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)

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ATLAS Level-1 Endcap Muon Trigger from Run-2 to Run-3 / Nobe, Takuya (International Center for Elementary Particle Physics and Department of Physics, The University of Tokyo)
Proceedings of LHCP2020
ATL-DAQ-PROC-2020-012. - 2020. - 4 p.
Original Communication (restricted to ATLAS) - Full text

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CERN-PHOTO-202009-113
© 2020 CERN

visit by Her Excellency Ms Catalina Devandas, Ambassador of the Republic of Costa Rica
08-09-2020
Keywords: Protocol Office, VIP visit, Costa rica, 2020