CERN Accelerating science

CERN Preprints

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2022-10-04
08:38
Offloading electromagnetic shower transport to GPUs / Amadio, G. (CERN) ; Apostolakis, J. (CERN) ; Buncic, P. (CERN) ; Cosmo, G. (CERN) ; Dosaru, D. (Ecole Polytechnique, Lausanne) ; Gheata, A. (CERN) ; Hageboeck, S. (CERN) ; Hahnfeld, J. (CERN) ; Hodgkinson, M. (Sheffield U.) ; Morgan, B. (Liverpool U.) et al.
Making general particle transport simulation for high-energy physics (HEP) single-instruction-multiple-thread (SIMT) friendly, to take advantage of accelerator hardware, is an important alternative for boosting the throughput of simulation applications. [...]
arXiv:2209.15445.
- 8 p.
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2022-10-04
08:30
Comparative study of H accumulation in differently oriented grains of Cu / Lopez-Cazalilla, A. (Helsinki U.) ; Serafim, Catarina (Helsinki U. ; CERN) ; Djurabekova, F. (Helsinki U.) ; Perez-Fontenla, Ana Teresa (CERN) ; Calatroni, Sergio (CERN) ; Wuensch, Walter (CERN)
When metal surfaces are exposed to hydrogen ion irradiation, the light ions are expected to penetrate deep into the material and dissolve in the matrix. [...]
arXiv:2209.14068.
- 25 p.
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2022-10-04
08:28
Primordial black holes and gravitational waves from nonminimally coupled supergravity inflation / Kawai, Shinsuke (Sungkyunkwan U.) ; Kim, Jinsu (CERN)
We study formation of primordial black holes and generation of gravitational waves in a class of cosmological models that are direct supersymmetric analogues of the observationally favored nonminimally coupled Higgs inflation model. [...]
CERN-TH-2022-157 ; arXiv:2209.15343.
- 13 p.
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2022-10-04
08:28
Design, Construction and Commissioning of a Technological Prototype of a Highly Granular SiPM-on-tile Scintillator-Steel Hadronic Calorimeter
The CALICE collaboration is developing highly granular electromagnetic and hadronic calorimeters for detectors at future energy frontier electron-positron colliders. [...]
CALICE-PUB-2022-003 ; arXiv:2209.15327.
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2022-10-03
18:08
The CMS Pixel Detector for the High Luminosity LHC / Cassese, Antonio (INFN, Florence) /CMS Collaboration
The LHC machine will be upgraded to increase its peak luminosity to $5\mbox{--}7.5\times10^{34}$ cm$^{-2}$s$^{-1}$ and to possibly reach an integrated luminosity of $3000\mbox{--}4000\;$fb$^{-1}$, with an average number of pileup events of $140\mbox{--}200$. The CMS experiment needs to be upgraded to keep up with the new challenges: the unprecedented radiation environment translates to the detector requirement of high resilience, while the increased number of events per bunch crossing requires higher detector granularity. Thus a completely new Inner Tracker will be installed. Design choices for the Inner Tracker Phase-2 upgrade, highlighting R\&D; activities and technological approaches, will be presented..
CMS-CR-2022-154.- Geneva : CERN, 2022 - 8 p. Fulltext: PDF;
In : 23rd International Workshop for Radiation Imaging Detectors, Riva Del Garda, It, 26 - 30 Jun 2022

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2022-10-03
18:05
Heavy-ion physics with CMS detector / Petrushanko, Sergey (Moscow State U.) /CMS Collaboration
We present a selection of very recent results by the CMS collaboration on heavy-ion physics at the LHC (CERN)..
CMS-CR-2022-150.- Geneva : CERN, 2022 - 16 p. Fulltext: PDF;
In : 72nd International Meeting on Nuclear Spectroscopy and Nuclear Structure : Fundamental problems and applications (Nucleus-2022), Moscow, Russia, 11 - 16 Jul 2022

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2022-10-03
04:09
On the polarization of the non-prompt contribution to inclusive J/$\psi$ production in pp collisions / Faccioli, Pietro (LIP, Lisbon) ; Lourenço, Carlos (CERN)
Of the J/$\psi$ mesons (inclusively) produced in pp collisions, a big fraction results from B decays, increasing with transverse momentum and exceeding 50% for $p_{\rm T} > 20$ GeV. [...]
arXiv:2206.14686.
- 27 p.
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2022-10-01
04:47
Defect characterization studies on neutron irradiated boron-doped silicon pad diodes and Low Gain Avalanche Detectors / Himmerlich, Anja (CERN) ; Castello-Mor, Nuria (CERN) ; Rivera, Esteban Curras (CERN) ; Gurimskaya, Yana (CERN) ; Maulerova-Subert, Vendula (CERN ; Hamburg U.) ; Moll, Michael (CERN) ; Pintilie, Ioana (Bucharest U.) ; Fretwurst, Eckhart (Hamburg U.) ; Liao, Chuan (Hamburg U.) ; Schwandt, Jorn (Hamburg U.)
High-energy physics detectors, like Low Gain Avalanche Detectors (LGADs) that will be used as fast timing detectors in the High Luminosity LHC experiments, have to exhibit a significant radiation tolerance. [...]
arXiv:2209.07186.
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2022-09-30
12:19
A search for new resonances in multiple final states with a high transverse momentum $Z$ boson in $\sqrt{s}=13$ TeV $pp$ collisions with the ATLAS detector
A generic search for resonances is performed with events containing a $Z$ boson with transverse momentum greater than 100 GeV, decaying into $e^+e^-$ or $\mu^+\mu^-$. [...]
arXiv:2209.15345 ; CERN-EP-2022-180.
- 2022. - 38 p, 38 p.
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2022-09-30
11:53
Measurement of the polarisation of $W$ bosons produced in top-quark decays using dilepton events at $\sqrt{s} = 13$ TeV with the ATLAS experiment
A measurement of the polarisation of $W$ bosons produced in top-quark decays is presented, using proton-proton collision data at a centre-of-mass energy of $\sqrt{s} = 13$ TeV. [...]
CERN-EP-2022-197 ; arXiv:2209.14903.
- 2022. - 21 p.
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