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CERN Preprints

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2021-06-23
18:43
Test-beam and simulation studies for the CLICTD technology demonstrator - a monolithic CMOS pixel sensor with a small collection diode / Dort, Katharina (Justus-Liebig-Universitaet Giessen (DE))
The CLIC Tracker Detector (CLICTD) is a monolithic pixel sensor featuring pixels of 30 μm × 37.5 μm and a small collection diode. The sensor is fabricated in a 180 nm CMOS imaging process, using two different pixel flavours: the first with a continuous n-type implant for full lateral depletion, and the second with a segmentation in the n-type implant for accelerated charge collection. [...]
CLICdp-Conf-2021-003.- Geneva : CERN, 2021 - 5. Fulltext: PDF;
In : International Conference on Technology and Instrumentation in Particle Physics , Online, Online, 24 - 29 May 2021

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2021-06-23
06:01
Design and Fabrication of the 1.9 K Magnet Test Facility at BNL, and Test of the First 4-m-Long MQXF Coil / Muratore, Joseph (Brookhaven Natl. Lab.) ; Anerella, Michael (Brookhaven Natl. Lab.) ; Joshi, Piyush (Brookhaven Natl. Lab.) ; Kovach, Paul (Brookhaven Natl. Lab.) ; Marone, Andrew (Brookhaven Natl. Lab.) ; Wanderer, Peter (Brookhaven Natl. Lab.)
The future high luminosity upgrade of the Large Hadron Collider (LHC) at CERN will include 20 4.2-m-long Nb$_3$Sn high gradient quadrupole magnets, which will be components of the triplets for two LHC insertion regions. [...]
2018. - 4 p.

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2021-06-23
06:01
Fabrication and test of LARP technological quadrupole models of TQC series / Bossert, Rodger C (Fermilab) ; Ambrosio, Giorgio (Fermilab) ; Andreev, Nikolai (Fermilab) ; Barzi, Emanuela (Fermilab) ; Chlachidze, Guram (Fermilab) ; Feher, Sandor (Fermilab) ; Kashikhin, Vladimir S (Fermilab) ; Kashikhin, Vadim V (Fermilab) ; Lamm, Michael (Fermilab) ; Nobrega, Alfred (Fermilab) et al.
In support of the development of a large-aperture Nb$_3$Sn superconducting quadrupole for the Large Hadron Collider (LHC) luminosity upgrade, several two-layer technological quadrupole models of TQC series with 90 mm aperture and collar-based mechanical structure have been developed at Fermilab in collaboration with LBNL. [...]
FERMILAB-PUB-08-309-TD. - 2009. - 5 p.
Fermilab Library Server (fulltext available) - Full text

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2021-06-23
06:01
Development and test of LARP technological quadrupole (TQC) magnet / Feher, S (Fermilab) ; Bossert, R C (Fermilab) ; Ambrosio, G (Fermilab) ; Andreev, N (Fermilab) ; Barzi, E (Fermilab) ; Carcagno, R (Fermilab) ; Kashikhin, V S (Fermilab) ; Kashikhin, V V (Fermilab) ; Lamm, M J (Fermilab) ; Nobrega, F (Fermilab) et al.
In support of the development of a large-aperture superconducting quadrupole for the Large Hadron Collider (LHC) luminosity upgrade, two-layer quadrupole models (TQC and TQS) with 90 mm aperture are being constructed at Fermilab and LBNL within the framework of the US LHC Accelerator Research Program (LARP). [...]
FERMILAB-PUB-06-296-TD. - 2007. - 4 p.
Fermilab Library Server (fulltext available) - Full text

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2021-06-23
06:01
Design of Nb$_3$Sn coils for LARP long magnets. / Ambrosio, G ; Andreev, N ; Anerella, M ; Barzi, E ; Bossert, R ; Dietderich, D ; Feher, S ; Ferracin, P ; Ghosh, A ; Gourlay, S et al.
The LHC Accelerator Research Program (LARP) has a primary goal to develop, assemble, and test full size Nb$_3$Sn quadrupole magnet models for a luminosity upgrade of the Large Hadron Collider (LHC). [...]
FERMILAB-PUB-06-304-TD. - 2007. - 4 p.
Fermilab Library Server (fulltext available) - Full text

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2021-06-22
13:58
Measurement of the $t\bar{t}t\bar{t}$ production cross section in $pp$ collisions at $\sqrt{s}$=13 TeV with the ATLAS detector
A measurement of four-top-quark production using proton-proton collision data at a centre-of-mass energy of 13 TeV collected by the ATLAS detector at the Large Hadron Collider corresponding to an integrated luminosity of 139 fb$^{-1}$ is presented. [...]
CERN-EP-2021-075. - 2021.
Fulltext - Previous draft version

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2021-06-22
04:44
Backreaction from inhomogeneous matter fields during large-scale structure formation / Floerchinger, Stefan (U. Heidelberg, ITP) ; Tetradis, Nikolaos (Athens U.) ; Wiedemann, Urs Achim (CERN)
We study how inhomogeneities of the cosmological fluid fields backreact on the homogeneous part of energy density and how they modify the Friedmann equations. [...]
arXiv:2106.10184 ; CERN-TH-2021-095. - 11 p.

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2021-06-22
04:44
Indirect Detection of Secluded Supersymmetric Dark Matter / Barnes, Patrick (Michigan U., LCTP) ; Johnson, Zachary (Michigan U., LCTP) ; Pierce, Aaron (Michigan U., LCTP) ; Shakya, Bibhushan (DESY ; CERN)
Weak-scale secluded sector dark matter can reproduce the observed dark matter relic density with thermal freeze-out within that sector. [...]
arXiv:2106.09740 ; CERN-TH-2021-089 ; DESY 21-091 ; LCTP-21-13. - 30 p.
Fulltext

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2021-06-22
04:44
Gravitational waves $\times$ HI intensity mapping: cosmological and astrophysical applications / Scelfo, Giulio ; Spinelli, Marta ; Raccanelli, Alvise (INFN, Padua ; CERN) ; Boco, Lumen ; Lapi, Andrea ; Viel, Matteo
Two of the most rapidly growing observables in cosmology and astrophysics are gravitational waves (GW) and the neutral hydrogen (HI) distribution. [...]
arXiv:2106.09786. - 36 p.

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2021-06-22
04:44
Extracting low energy signals from raw LArTPC waveforms using deep learning techniques -- A proof of concept / Uboldi, Lorenzo (CERN) ; Ruth, David (Unlisted, US, IL) ; Andrews, Michael (Carnegie Mellon U.) ; Wang, Michael H.L.S. (Fermilab) ; Wenzel, Hans-Joachim (Fermilab) ; Wu, Wanwei (Fermilab) ; Yang, Tingjun (Fermilab)
We investigate the feasibility of using deep learning techniques, in the form of a one-dimensional convolutional neural network (1D-CNN), for the extraction of signals from the raw waveforms produced by the individual channels of liquid argon time projection chamber (LArTPC) detectors. [...]
FERMILAB-PUB-21-030-ND-SCD ; arXiv:2106.09911. -
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