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CERN Accelerating science

CERN Document Server 135 elementer funnet  1 - 10nesteslutt  gå til element: Søket tok 0.71 sekunder. 
1.
Chapter 9: Cryogenics for the HL-LHC / Claudet, Serge (CERN) ; Ferlin, Gerard (CERN) ; Monneret, Emmanuel (CERN) ; Perin, Antonio (CERN) ; Pirotte, Olivier (CERN) ; Sisti, M (CERN) ; Van Weelderen, Rob (CERN)
The upgrade of the cryogenics for the HL-LHC will consist of the following: - The design and installation of two new cryogenic plants at P1 and P5 for high luminosity insertions. This upgrade will be based on a new sectorization scheme aimed at separating the cooling of the magnets in these insertion regions from the arc magnets and considering the newt feedboxes and superconducting links located in underground infrastructures. - The design and installation of a new cryogenic distribution lines (QXL) at P1 and P5 in the LHC tunnel and in a new underground service galleries. - The upgrade of the existing cryogenic plant (QSRA and QURA) cooling the LHC sector 3-4 located at P4. - The cryogenic design support for superconducting devices, such as magnets, crab cavities, superconducting links, and the hollow electron lenses. Some other options such as new cryogenic circuits at P7 for the HTS links and displaced current feedboxes or a new cryoplant in P4 have been discarded..
2020 - 10 p. - Published in : 10.23731/CYRM-2020-0010.189 Fulltext: PDF;
In : High-Luminosity Large Hadron Collider (HL-LHC): Technical design report, pp.189-198
2.
A local sensor for joint temperature and velocity measurements in turbulent flows / Salort, Julien (ENS, Lyon, Lab. Phys.) ; Rusaouën, Éléonore (Neel Lab, Grenoble) ; Robert, Laurent (FEMTO-ST) ; du Puits, Ronald (Ilmenau Tech. U.) ; Loesch, Alice (Ilmenau Tech. U.) ; Pirotte, Olivier (CERN) ; Roche, Philippe-E (Neel Lab, Grenoble) ; Castaing, Bernard (ENS, Lyon, Lab. Phys. ; Neel Lab, Grenoble) ; Chilla, Francesca (ENS, Lyon, Lab. Phys.)
We present the principle for a micro-sensor aimed at measuring local correlations of turbulent velocity and temperature. The operating principle is versatile and can be adapted for various types of flow. [...]
2018 - Published in : Rev. Sci. Instrum. 89 (2018) 015005
3.
Status of Radioactive Ion Beam Post-Acceleration at CERN-ISOLDE / Kadi, Yacine (CERN) ; Andreazza, William (CERN) ; Bauche, Jeremie (CERN) ; Behrens, Antje (CERN) ; Bernardes, Ana (CERN) ; Ferreira Somoza, Jose (CERN) ; Formenti, Fabio (CERN) ; Fraser, Matthew (CERN) ; Garcia Borge, Maria (CERN) ; Guillotin, Nicolas (CERN) et al.
The HIE-ISOLDE project* (High Intensity and Energy ISOLDE) reached an important milestone in September 2016 when the first physics run was carried out with radioactive beams at 6 MV/m. This is the first stage in the upgrade of the REX post-accelerator, whereby the energy of the radioactive ion beams was increased from 3 to 5.5 MeV per nucleon. [...]
CERN-ACC-2017-247.- 2017 - 4 p. - Published in : 10.18429/JACoW-IPAC2017-WEOAA2 Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.WEOAA2
4.
Measurement of the t-channel single top-quark production cross section in pp collisions at $\sqrt{s}$ = 7 TeV with the ATLAS detector / ATLAS Collaboration
We report a measurement of the cross section of single top-quark production in the t-channel using 1.04 fb$^{-1}$ of pp collision data at $\sqrt{s}$ = 7 TeV recorded with the ATLAS detector at the LHC. Selected events feature one electron or muon, missing transverse momentum, and two or three jets, exactly one of them identified as originating from a b quark. [...]
arXiv:1205.3130; CERN-PH-EP-2012-082; CERN-PH-EP-2012-082.- Geneva : CERN, 2013-07-16 - 21 p. - Published in : Phys. Lett. B 717 (2012) 330-350 Elsevier Open Access article: PDF; Fulltext: PDF; External link: all figures including auxiliary figures
5.
Measurement of $W\gamma$ and $Z\gamma$ production cross sections in pp collisions at $\sqrt{s}$ = 7 TeV and limits on anomalous triple gauge couplings with the ATLAS detector / ATLAS Collaboration
This Letter presents measurements of $l^{\pm}\nu\gamma$ and $l^+ l^- \gamma (l=e, \mu)$ production in 1.02 fb$^{-1}$ of pp collision data recorded at $\sqrt{s}$ = 7 TeV with the ATLAS detector at the LHC during 2011. Events dominated by W gamma and Z gamma production with leptonic decays of the W and Z bosons are selected, and their production cross sections and kinematic properties are measured in several ranges of the photon transverse energy. [...]
arXiv:1205.2531; CERN-PH-EP-2012-059; CERN-PH-EP-2012-059.- Geneva : CERN, 2013-07-16 - 21 p. - Published in : Phys. Lett. B 717 (2012) 49-69 Elsevier Open Access article: PDF; Fulltext: PDF; External link: all figures including auxiliary figures
6.
Search for lepton flavour violation in the $e\mu$ continuum with the ATLAS detector in $\sqrt{s}$ = 7 TeV pp collisions at the LHC / ATLAS Collaboration
This paper presents a search for the t-channel exchange of an R-parity violating scalar top quark ($\tilde{t}$) in the $e^{\pm}\mu^{\pm}$ continuum using 2.1/fb of data collected by the ATLAS detector in $\sqrt{s}$ = 7 TeV pp collisions at the Large Hadron Collider. Data are found to be consistent with the expectation from the Standard Model backgrounds. [...]
arXiv:1205.0725; CERN-PH-EP-2012-108; CERN-PH-EP-2012-108.- Geneva : CERN, 2012-06-14 - 6 p. - Published in : Eur. Phys. J. C 72 (2012) 2040 Fulltext: PDF; Springer Open Access article: PDF; External link: all figures including auxiliary figures
7.
Searches for TeV-scale Gravity Signatures in Final States with Leptons and Jets with the ATLAS Detector at $\sqrt{s}$ = 7 TeV / ATLAS Collaboration
The production of events with multiple high transverse momentum particles including charged leptons and jets is measured, using 1.04 fb-1 of proton-proton collision data recorded by the ATLAS detector during the first half of 2011 at $\sqrt{s}$ = 7 TeV. No excess beyond Standard Model expectations is observed, and upper limits on the fiducial cross sections for non-Standard Model production of these final states are set. [...]
arXiv:1204.4646; CERN-PH-EP-2012-046; CERN-PH-EP-2012-046.- Geneva : CERN, 2013-07-16 - 20 p. - Published in : Phys. Lett. B 716 (2012) 122-141 Elsevier Open Access article: PDF; Fulltext: PDF; External link: all figures including auxiliary figures
8.
Search for supersymmetry with jets, missing transverse momentum and at least one hadronically decaying tau lepton in proton-proton collisions at $\sqrt{s}$ = 7 TeV with the ATLAS detector / ATLAS Collaboration
A search for production of supersymmetric particles in final states containing jets, missing transverse momentum, and at least one hadronically decaying tau lepton is presented. The data were recorded by the ATLAS experiment in $\sqrt{s}$ = 7 TeV proton-proton collisions at the Large Hadron Collider. [...]
arXiv:1204.3852; CERN-PH-EP-2012-076; CERN-PH-EP-2012-076.- Geneva : CERN, 2013-07-16 - 18 p. - Published in : Phys. Lett. B 714 (2012) 197-214 Elsevier Open Access article: PDF; Fulltext: arXiv:1204.3852 - PDF; S0370269312007009 - XML; External link: all figures including auxiliary figures
9.
Search for resonant WZ production in the $WZ \to l\nu l'l'$ channel in $\sqrt{s}$ = 7 TeV pp collisions with the ATLAS detector / ATLAS Collaboration
A generic search is presented for a heavy particle decaying to $WZ \to l\nu l'l' (l, l' = e, \mu)$ final states. The data were recorded by the ATLAS detector in $\sqrt{s}$ = 7 TeV pp collisions at the Large Hadron Collider and correspond to an integrated luminosity of 1.02 fb-1. [...]
arXiv:1204.1648; CERN-PH-EP-2012-063; CERN-PH-EP-2012-063.- Geneva : CERN, 2012 - 8 p. - Published in : Phys. Rev. D 85 (2012) 112012 APS Open Access article: PDF; Fulltext: PDF; External link: all figures including auxiliary figures
10.
Search for events with large missing transverse momentum, jets, and at least two tau leptons in 7 TeV proton-proton collision data with the ATLAS detector / ATLAS Collaboration
A search for events with large missing transverse momentum, jets, and at least two tau leptons has been performed using 2 fb^-1 of proton-proton collision data at $\sqrt{s}$ = 7 TeV recorded with the ATLAS detector at the Large Hadron Collider. No excess above the Standard Model background expectation is observed and a 95% CL visible cross section upper limit for new phenomena is set. [...]
arXiv:1203.6580; CERN-PH-EP-2012-054; CERN-PH-EP-2012-054.- Geneva : CERN, 2013-07-16 - 17 p. - Published in : Phys. Lett. B 714 (2012) 180-196 Elsevier Open Access article: PDF; Fulltext: PDF; External link: all figures including auxiliary figures

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