CERN Accelerating science

CERN Preprints

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2018-11-14
06:23
Dose gradient assessment at the new CERN CHARM irradiation facility / Infantino, A (CERN) ; Cangialosi, C (CERN) ; Krawina, M (CERN) ; Brucoli, M (CERN) ; Brugger, M (CERN) ; De Carvalho Saraiva, J P (CERN) ; Danzeca, S (CERN)
CERN CHARM facility provides a unique complex radiation environment characterized by particle energy spectra representative of high-energy accelerators, ground and atmospheric conditions and space applications. [...]

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2018-11-14
04:02
The Primordial Black Hole Dark Matter - LISA Serendipity / Bartolo, N. (Padua U., Astron. Dept. ; INFN, Padua ; Padua U.) ; De Luca, V. (Geneva U., Dept. Theor. Phys.) ; Franciolini, G. (CERN ; Geneva U., CAP) ; Peloso, M. (Padua U., Astron. Dept. ; INFN, Padua) ; Riotto, A. (Pisa, Scuola Normale Superiore)
The last few years have witnessed a renewed interest in the possibility that primordial black holes (PBHs) constitute the dark matter of the universe. [...]
arXiv:1810.12218.
- 5 p.

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2018-11-13
10:50
Measurement and simulation of the background in the CMS muon detectors / Kang, Yechan (Seoul U.) /CMS Collaboration
The CMS muon system presently consists of three detector technologies equipping different regions of the spectrometer. Drift Tube chambers (DT) are installed in the central region, while Cathode Strip Chambers (CSC) cover the high pseudorapidity regions; both serve as tracking and triggering detectors. [...]
CMS-CR-2018-311.- Geneva : CERN, 2018 - 5 p. Fulltext: PDF;
In : XXXIX International Conference on High Energy Physics, Seoul, Kor, 4 - 11 Jul 2018

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2018-11-13
10:49
Searches with boosted objects in ATLAS and CMS / Zucchetta, Alberto (Zurich U.) /ATLAS and CMS Collaborations
A summary of searches for heavy resonances decaying into boosted bosons or top quarks is presented. The searches are performed on the data collected during 2016 and 2017 by the ATLAS and CMS experiments from pp collisions produced at the CERN LHC at $\sqrt{s}=13$ TeV. [...]
CMS-CR-2018-257.- Geneva : CERN, 2018 - 8 p. Fulltext: PDF;
In : 30th Rencontres de Blois Particle Physics and Cosmology, Blois, France, 3 - 8 Jun 2018

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2018-11-13
10:49
The CMS Level-1 muon triggers for the LHC Run II / Konecki, Marcin Andrzej (Warsaw U.) /CMS Collaboration
The CMS experiment implements a sophisticated two-level triggering system composed of Level-1, instrumented by custom-design hardware boards, and a software High Level Trigger. A new Level-1 trigger architecture with improved performance is now being used to maintain high physics efficiency for the more challenging luminosity conditions experienced during Run II. [...]
CMS-CR-2018-227.- Geneva : CERN, 2018 - 3 p. Fulltext: PDF;
In : XXXIX International Conference on High Energy Physics, Seoul, Kor, 4 - 11 Jul 2018

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2018-11-13
10:47
Measurements of the CMS jet energy scale and resolution at 13 TeV / Dordevic, Milos (VINCA Inst. Nucl. Sci., Belgrade) /CMS Collaboration
Jets are the experimental signatures of energetic quarks and gluons produced in high energy processes and they need to be calibrated in order to have the correct energy scale. A detailed understanding of both the energy scale and the transverse momentum resolution of jets at the CMS experiment is of crucial importance for many physics analyses. [...]
CMS-CR-2018-216.- Geneva : CERN, 2018 - 5 p. Fulltext: PDF;
In : XXXIX International Conference on High Energy Physics, Seoul, Kor, 4 - 11 Jul 2018

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2018-11-13
06:27
i-TIM: A Robotic System for Safety, Measurements, Inspection and Maintenance in Harsh Environments / Di Castro, M (CERN) ; Baiguera Tambutti, M L (CERN) ; Ferre, M (CERN) ; Losito, R (CERN) ; Lunghi, G (CERN) ; Masi, A (CERN)
Robotic systems for search and rescue, measurements, inspection and maintenance of harsh environments, such as the Large Hadron Collider (LHC) at the European Organization for Nuclear Research (CERN), are nowadays essential for machine availability and personnel safety, reducing human exposure to different hazards such as oxygen deficiency and radiation. [...]
2018. - 6 p.

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2018-11-13
06:27
Development of a control strategy for the 18 MW power converter of the CERN PS Booster accelerator / Rocca, Stefano (CERN) ; Boattini, Fulvio (CERN) ; de Paco Soto, Luis Miguel (CERN)
In the frame of the Large Hadron Collider Injectors Upgrade project, a new 18 MW power converter is required for the supply of the main magnets in the PS Booster accelerator. [...]
2018. - 8 p.

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2018-11-13
04:12
A Comparison of p-p, p-Pb, Pb-Pb Collisions in the Thermal Model: Multiplicity Dependence of Thermal Parameters / Sharma, Natasha (Panjab U., Chandigarh) ; Cleymans, Jean (UCT-CERN Res. Ctr.) ; Hippolyte, Boris (Strasbourg, IPHC) ; Paradza, Masimba (UCT-CERN Res. Ctr.)
% An analysis is made of the particle composition (hadrochemistry) of the final state in proton-proton (p-p), proton-lead (p-Pb) and lead-lead (Pb-Pb) collisions as a function of the charged particle multiplicity ($\dNchdeta$). [...]
arXiv:1811.00399.
- 11 p.

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2018-11-13
04:12
Model-independent bounds on light pseudoscalars from rare B-meson decays / Döbrich, Babette (CERN) ; Ertas, Fatih (Aachen, Tech. Hochsch.) ; Kahlhoefer, Felix (Aachen, Tech. Hochsch.) ; Spadaro, Tommaso (Frascati)
New light pseudoscalars, such as axion-like particles, appear in many well-motivated extensions of the Standard Model and provide an exciting target for present and future experiments. [...]
arXiv:1810.11336 ; TTK-18-45.
- 10 p.

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